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1. 29 Window Measurement essen nenne 30 Calculating the Center Point 30 AREA CGAEGULAT IONS ii tete 31 Square Area x sssssssssssesese esee enne 31 Area of a Rectangular Room LXW 31 Using Multi Function Key to Find Area Square up and Perimeter NOT AVAILABLE ON TRIG MODEL 4080 31 VOLUME CALCULATIONS sss 32 Rectangular Containers LXWXH 32 Using the Multi Function Key to Find Volume Wall Area and Room Area NOT AVAILABLE ON TRIG MODEL 4080 32 Volume of a Oylinder essent 33 Volume of a Cone enne 33 WEIGHT VOLUME 5 34 Weight Conversions sssssesesee eene 34 Weight per Volume Volume 34 BLOCKS BRICKS NOT AVAILABLE ON TRIG MODEL 4080 35 Number of Blocks Based on Entered Length and Height 35 Number of Blocks Based on Entered 35 Number of Blocks Based on Calculated Perimeter 36 Number of Blocks Based on Entered Length 36 Number of Face Bricks
2. sssssssssseeennne 7 Column Cone Function 8 Compound Miter Crown Moulding Keys 8 Drywall Function NOT AVAILABLE ON TRIG MODEL 7 4080 9 Footing Function NOT AVAILABLE ON TRIG MODEL 4080 9 Polygon Function 9 Right Triangle Roof Framing 10 Hip Valley and Jack Rafter 11 Rake Wall Function sssssseseseeeneens 13 Roof Materials Covering 14 d entes fi he eee P Nee dde 14 Suds FUNCION aee adt fe e ve T ERE aed eeu nada 16 Trigonometric Keys TRIG 4080 AND DESKTOP 44080 MODELS ONLY 4c ces dene ter ten eve ded eee Deut do nece d nan eee Des 16 ENTERING DIMENSIONS sse 18 Entering Linear 18 Entering Square Cubic 18 SETTING FRACTIONAL 20 Setting Fraction Resolution Using the Preference Setting 20 Converting a Fractional Value to a Different Resolution 21 CONVERSIONS LINEAR ARE
3. sese 66 67 ROOFING MATERIALS sse 68 Roof Covering Entering Pitch Length and Width 68 Roof Covering Entering Rise Run No Pitch and Area 69 STAIR EAYOUT EXAMPLES iter eater end 70 Stair Layout Definitions sse 70 Stairs Given Only Floor to Floor 72 Stairs Given Only the Run sse 74 Stairs Given Rise and 75 Stairs Given Rise and Run Using Riser Limited Function for Code 76 Baluster Spacing ssssssseeeeeenn 77 SITLUDS iit petentem eere t e eee be ei eset re ted 78 BASIC D M S AND TRIGONOMETRY EXAMPLES 78 Converting Degrees Minutes Seconds 78 Time Calculations Using D M S seeeee 78 TRIGONOMETRIC 79 Converting Percent Grade to 5 80 Converting Tangent Pitch to 80 Converting Roof Angle in Degrees to Pitch in Inches 80 Angle Rise and Hypotenuse 81 APPENDIX A DEFAULT SETTINGS eene 82 APP
4. KEYSTROKE DISPLAY 1 Divide length in half to figure first center point 0 CD 3 Ga 8 13 FEET 8 INCH God 6 FEET 10 INCH 2 Divide width in half to figure second center point 1 4 22 0 C223 14 FEET 10 INCH eod 7 FEET 5 INCH Therefore you should install the fan at the intersection of 6 Feet 10 Inches length and 7 Feet 5 Inches width 30 CONSTRUCTION MASTER TRIG DESKTOP AREA CALCULATIONS Square Area x What is the area of a square room with sides measuring 7 Feet 4 Inches KEYSTROKE DISPLAY 0 4 2 53 77778 SQ FEET Area of a Rectangular Room LxW What is the area of a room measuring 12 Feet 6 Inches by 15 Feet 8 Inches KEYSTROKE DISPLAY 0 CD 2 eB 6 Ga 12 rEET 6 INCH CD 5 uU 195 8333 sa FEET Note You can also find area using the and keys as seen in the next problem However these keys are not available on the Trig Model 4080 Using Multi Function CZ Key to Find Area Square up and Perimeter NOT AVAILABLE ON TRIG MODEL 4080 Find the area square up and perimeter of a space measuring 20 Feet 6 Inches by 25 Feet 6 Inches KEYSTROKE DISPLAY 0 2 0 6 CED LNTH 20 FEET 6 INCH 2 5 6 GED WDTH 25 6 INCH AREA 522 75 SQ FEET UC SQUP 32 FEET 8 5 8 INCH PER 92 FEET 0 INCH User s GUIDE 31 VOLUME CALCULATIONS Rectangular Containers LxWxH What is the volume of a rectangular container that measures 3 Feet
5. Setting Fractional Resolution Using the Preference Setting Mode KEYSTROKE DISPLAY 1 Access Preference Settings ED Prefs FRAC 0 1 16 iNcH 2 Access Next Fraction Subsetting FRAC 0 1 32 INCH FRAC 0 1 64 INCH FRAC 0 1 2 INCH FRAC 0 1 4 iNcH FRAC 0 1 8 INCH repeats options FRAC 0 1 16 INCH 3 To Permanently Set the Fractional Resolution You Have Selected Above press or any key to set the displayed Fractional Resolution and Exit Preference Settings HEN EE 0 4 To Recall Your Selected Fractional Resolution cI STD 0 1 16 INCH 1 16 is the default setting The display may differ from the example depending on what the resolution is currently set to 20 CONSTRUCTION MASTER Pno TRIG DESKTOP Converting a Fractional Value to a Different Resolution Add 44 64th to 1 64th of an Inch and then convert the answer to other fractional resolutions KEYSTROKE DISPLAY 0 4 4 6 4 0 44 64 INCH 0096 268 0 45 64 INCH CD 1 16 0 11 16 INCH 2 1 2 0 1 2 INCH 3 1 32 0 23 32 INCH 4 1 4 0 3 4 INCH 6 1 64 0 45 64 INCH 1 8 0 3 4 INCH exa 0 Changing the Fractional Resolution on a displayed value does not alter your Permanent Fractional Resolution Setting set via Preference Settings Note This setting is temporary it will revert back to your permanent fractional setting upon press of or when you turn the calculator off USER S GUIDE 21 CONVERSIONS LINEAR A
6. gen KEYSTROKE DISPLAY 1 Enter weight in Tons per Cubic Yard 1 2 5 6279 0 wt vol 1 75 Ton Per CU YD 2 Enter diameter and find Circle area 0 3 4 0 V3 2 3 FEET 4 1 2 INCH AREA 8 946176 so FEET 3 Enter height and find total volume of concrete 1 0 e 6 C22 HGHT 11 FEET 6 INCH Column Cone COL 102 881 cu FEET 3 810408 cu 6 8 19 05204 cu vp 4 Convert volume to weight in tons pounds and kilograms 6 tons 33 34107 Ton 4 Ibs 66682 14 LB CD kg 30246 51 For Trig Model 4080 Users As this model does not have a key you must enter the height using the key USER S GUIDE 47 Complex Concrete Volume You re going to pour an odd shaped patio 4 1 2 Inches deep with the dimensions shown below Calculate the total area by dividing the draw ing into three rectangles and determine the total Yards of concrete required Then find the total cost if concrete costs 45 per Cubic Yard _ 27 0 ____ _ gt aye 90 KEYSTROKE DISPLAY 1 Find area of Part A and store into Memory 0 2 4 2 6 ie 24 FEET 6 INCH 7 ree 17 FEET 6 INCH 2 7 472 5 50 FEET M 472 5 so Feet M 2 Find area of Part B and store into Memory 7 7 FEET M evum 63 so FEET M M 63 so FEET 3 Find area of Part C and store into Memory 9 9 rEET M amp vumo 81 so FEET M M 81 so FEET M Cont d 48 CONSTRUCTION MASTER
7. 0 0 Cost 18 Note Unit cost is entered in the standard per thousand Board Foot measure MBM format Number of Board Feet Based on Entered Volume Find the number of board feet required for a volume of 150 cubic feet KEYSTROKE DISPLAY Enter cubic feet and convert to board feet 0 CD 5 0 Ga 150 cu FEET Bd Ft BDFT 1800 38 CONSTRUCTION MAsTER PRo TRIG DESKTOP CIRCLE AND ARC CALCULATIONS Circle Arc values can be solved by entering any two of the following values Arc Length Angle Diameter Radius Chord Length Run and Segment Rise Rise It is recommended that you clear the calculator press twice after calculating right triangle solutions prior to beginning an Arc or Circle solution Note Circle Arc solutions cannot be solved for the following cases Entered Arc Length and Chord Length Run Entered Arc Length and Segment Rise Rise Circumference and Area of a Circle Find the area and circumference of a circle with a diameter of 11 Inches KEYSTROKE DISPLAY 0 OO DIA 11 INCH AREA 95 03318 so INCH CIRC 34 9 16 iNcH Arc Length Degree and Diameter Known Find the arc length of an 85 portion of a circle with a 5 foot diameter KEYSTROKE DISPLAY 0 5 DIA 5 FEET 0 INCH 5 85 00 3 8 1 2 INCH Arc Length Chord Length and Segment Rise Known Find the arc length and radius of a circle with a 3 feet 6 inch chord length and 1
8. 68 Setting Fractional Resolution 20 Sheathing Cut 60 100 CONSTRUCTION MAsTER Pro TRIG DESKTOP Square Area 31 Squaring Up a Foundation 51 Stair Key 14 Stair Layout Definitions 70 Stair Layout Examples 70 Stairs Given Only Floor to Floor Rise 72 Stairs Given Only the Run 74 Stairs Given Rise and Run 75 Stairs Given Rise and Run Using Riser Limited Function for Code Restrictions 76 Studs Function 16 Studs Number of 78 Time Calculations Using D M S 78 Trigonometric Keys Trig 4080 and Desktop 44080 Models only 16 Volume Calculations 32 Volume Concrete Columns 47 Volume Concrete Complex 48 Volume Concrete Driveway 46 Volume Cone 33 Volume Cylinder 33 Volume Rectangular Containers 32 Warranty 96 Warranty Repair Service 96 Weight Keys 5 Window Measurement 30 _ CALCULATED INDUSTRIES Putting answers at your fingertips since 1978 4840 Hytech Drive Carson City NV 89706 U S A 1 800 854 8075 Fax 1 775 885 4949 E mail info calculated com www calculated com User s GuipE 101 CALCULATED Jj 37 INDUSTRIES Designed in the United States of America Printed in China 3 06 UG4065E F
9. DESKTOP Cont d KEYSTROKE DISPLAY 3 Find regular incremental Jack adjustment and regular Jack rafter lengths and cut angles Jack JKOC 16 INCH INCR 1 FEET 6 1 2 INCH JK 1 8 FEET 2 3 8 INCH JK 2 6 FEET 7 7 8 INCH JK 3 5 FEET 1 3 8 INCH JK 4 3 FEET 6 13 16 INCH JK 5 2 FEET 0 5 16 INCH JK 6 O FEET 5 13 16 INCH JK 7 O FEET O INCH PLMB 30 26 LEVL 59 74 Jack CHK1 45 00 If display does not read JKOC 16 INCH the default then reset On center spacing by pressing 1 6 5 9 59 E ES SN 3 18 L3 tas GJ Ga Jack Rafters Using Other Than 16 Inch On Center Spacing A roof has a 9 12 Pitch and a run of 6 Feet 9 Inches Find the incre mental jack adjustment jack rafter lengths and cut angles at 18 inch versus 16 inch On center spacing The On center spacing is used for both Regular and Irregular Jack calculations KEYSTROKE DISPLAY 1 Enter Pitch Run and spacing 0 9 CED 22 PTCH 9 INCH 6 Z2 9 RUN 6 9 INCH 1 8 GED GE 5 o c OC 18 INCH 2 Find regular incremental Jack adjustment and regular Jack rafter lengths and cut angles JKOC 18 INCH INCR 1 FEET 10 1 2 INCH JK 1 6 FEET 6 3 4 INCH JK 2 4 FEET 8 1 4 INCH JK 3 2 FEET 9 3 4 INCH JK 4 FEET 11 1 4 INCH E pp ppm 8 8 18 8 x L3 baw tow aJ Jack 5 FEET 0 INCH Jack PLMB 36 87 LEVL 53 13 Jack CHK1 45 00 3 Reset On cente
10. M 100 2 0 0 M 200 5 0 M M 50 TTL 250 AVG 83 33333 CNT 3 250 Note To Clear Memory press CJ GD or turn off the calculator Permanent Storage Registers M1 and M2 Examples Store a rate of 175 into M1 and recall the value KEYSTROKE DISPLAY 1 7 6 Ga 1 M 1 175 0 1 175 Store 1 575 Square Yards into M2 and recall the value KEYSTROKE DISPLAY 1 5 7 5 Eea 2 M 2 EE 1575 sa 0 CoD 2 M 2 1575 sa YD Note To Clear M1 M3 Values stored in M1 M3 will remain permanently stored even after you turn the calculator off You will never need to clear the storage registers simply enter a new value However if you wish to clear M1 M3 to zero Enter 0 EB C1 E3 2 or 0 EB 3 or GM 03 to clear all registers 26 CONSTRUCTION MASTER PRO TRIG DESKTOP PAPERLESS TAPE OPERATION Note Not available on DT Desktop Printer Model 44065 The Paperless Tape allows you to display and review the last twenty entries of a regular math or basic dimensional math string calculation To access this mode after entering values press ED Then press 9 or to scroll forward or backward through the entries While in the Paperless Tape mode the display will show the previously entered or calculated value along with the sequential number of entry e g 01 02 03 etc and t
11. Note To check the current Fractional Resolution press Either Sta standard fractional resolution or Cnst constant will be displayed along with the fractional resolution Cont d USER S GUIDE 83 Cont d PREFERENCE OPTIONS 3 Volume Display Format 4 Stairwell Headroom Height 5 Rake Wall Descending or Ascending 6 Arched Wall Outside or Inside 7 Jack Rafters Descending or Ascending Standard if units entered are the same e g Feet x Feet x Feet the answer will remain in this format cu ft but if units entered are different e g Feet x Feet x Inches vol answer will always be displayed in Cubic Yards Cubic Yards vol answers always displayed in Cubic Yards regardless of unit entry e g Feet x Feet x Feet Cubic Yards Cubic Feet vol answers always dis played in Cubic Feet regardless of unit entry e g Inches x Inches x Inches Cubic Feet Cubic Meters vol answers always displayed in Cubic Meters regardless of unit entry e g Feet x Feet x Feet Cubic Meters 6 Feet 8 Inch default Use or key to increase or decrease above value by 1 Inch Descending Rake Wall studs are displayed from largest to smallest size Ascending Rake Wall studs are displayed from smallest to largest size Outside Arched walls are calculated for outside of the arc Inside Arched walls are calculated
12. Number of Based on Entered Length and Height 35 Board Feet With Dollar Cost 38 Board Feet Number of Based on Entered Volume 38 Bricks Face Number of 37 Bricks Paver Number of 37 Center Point Calculating 30 Circular Arc Function Keys 7 Circumference and Area of a Circle 39 Column Cone Function 8 Common Rafter Length 58 Common Rafter Length Pitch Unknown 58 Compound Miter Crown Moulding Example 45 Compound Miter Crown Moulding Keys 8 Concrete Driveway Volume 46 Concrete Columns 47 Concrete Footings 50 Concrete Volume Complex 48 Concrete Paving 46 Cone Volume 33 Construction Master New Features 90 Construction Project Keys and Functions 6 Conversions Area Square 23 Conversions Linear 22 Conversions Volume Cubic 23 Conversions Weight 34 Conversions Weight per Volume 34 Convert Key 1 Convert Degree of Pitch 57 Convert Percent Grade 57 Converting Decimal Feet to Feet Inch Fractions 22 Converting Decimal Inches to Fractional Inches 23 Converting Degrees Minutes Seconds 78 Converting Feet Inch Fractions to Decimal Feet 22 Converting Fractional Inches to Decimal Inches 23 USER S GUIDE 99 Converting Percent Grade to D M S 80 Converting Roof Angle in Degrees to Pitch in Inches 80 Converting Tangent Pitch to Angle 80 Cutting Boards 29 Cylinder Volume 33 Default Settings 82 Degrees Minutes Seconds Converting 78 Dimensional Measurement Unit K
13. Pno TRIG DESKTOP Cont d KEYSTROKE DISPLAY 4 Find total area and clear Memory Uc 616 5 so FEET 5 Find total Cubic Yards amp eaaouunoo 8 5625 cu 6 Find total cost 4 5 0 Cost 385 Polygon Finding Angles Based on Entered Radius and Number of Sides You re going to pour a polygon shaped patio Find the polygon values if the radius is 15 Feet and the number of sides is 6 r 15 KEYSTROKE DISPLAY 1 Enter radius and number of sides to calculate the full angle 0 1 5 Radius RAD 15 FEET 0 INCH 6 Polygon FULL 120 00 2 Then calculate the bi sect angle side length perimeter and polygon area HALF 60 00 Run SIDE 15 FEET 0 INCH PER 90 FEET 0 INCH AREA 584 5671 SQ FEET You must enter more than three sides for a multi sided polygon figure or the calcula tor will display None USER S GUIDE 49 Concrete Footings NOT AVAILABLE ON TRIG MODEL 4080 Find the volume of concrete required for a 16 Inch by 8 Inch footing that measures 232 Feet 6 Inches in length Then find the volume of five footings of the same size KEYSTROKE DISPLAY 1 Calculate and store footing area 0 1 6 GED 8 6 Fig Area F AR 128 SQ INCH 2 Enter length and find footing volume 2 3 2 6 Footing FTG 7 654321 cu vp To find the volume of multiple footings of the same size multiply times the total number of footings 3 Multiply
14. VOL Std To Increase or Decrease Stairwell Headroom from Default of 6 8 ED 4th press of ED HDRM 6 FEET 8 INCH plus sign increases height by 1 Inch 6 FEET 9 INCH minus sign decreases height by 1 Inch 6 FEET 8 INCH Keep pressing or amp to increase or decrease an Inch at a time To Set Rake Wall Stud Sizes to Descending or Ascending E 5th press of ED RAKE dESCEnd plus sign RAKE ASCEnd repeats options RAKE dESCEnd To Set Arched Wall Calculations to Outside or Inside E 6th press of ED AW outSidE plus sign AW inSidE repeats options AW outSidE To Set Jack Rafter to Descending or Ascending amp F 7th press of GEM JACK dESCEnd plus sign JACK ASCEnd repeats options JACK dESCEnd To Set Irregular Jack Spacing to On Center or Mate E 8th press of ED IRJK OC OC plus sign IRJK JAC JAC repeats options IRJK OC OC To Set Exponential Mode On or Off E 9th press of ED EXP OFF plus sign EXP On repeats options EXP OFF Cont d USER S GUIDE 87 Cont d KEYSTROKE DISPLAY To Set Meter Linear Decimal Format 10th press of ED METR 0 000 plus sign METR FLOAt repeats options METR 0 000 Set Number of Decimal Places for Degree Displays E 11th press of DEG 0 00 plus sign DEG FLOAt repeats options DEG 0 00 To Set Fractional Mode to Standard or Constant 12th pre
15. consumer purchase in the U S If a defect exists during the warranty peri od CI at its option will either repair using new or remanufactured parts or replace with a new or remanufactured calculator the product at no charge THE WARRANTY WILL NOT APPLY TO THE PRODUCT IF IT HAS BEEN DAMAGED BY MISUSE ALTERATION ACCIDENT IMPROPER HANDLING OR OPERATION OR IF UNAUTHORIZED REPAIRS ARE ATTEMPTED OR MADE SOME EXAMPLES OF DAMAGES NOT COVERED BY WAR RANTY INCLUDE BUT ARE NOT LIMITED TO BATTERY LEAKAGE BENDING A BLACK INK SPOT OR VISIBLE CRACKING OF THE LCD WHICH ARE PRESUMED TO BE DAMAGES RESULTING FROM MISUSE OR ABUSE To obtain warranty service in the U S please go to the website A repaired or replacement product assumes the remaining warranty of the original product or 90 days whichever is longer Non Warranty Repair Service U S A Non warranty repair covers service beyond the warranty period or service requested due to damage resulting from misuse or abuse Contact Calculated Industries at the number listed above to obtain current product repair information and charges Repairs are guaranteed for 90 days Repair Service Outside the U S A To obtain warranty or non warranty repair service for goods purchased out side the U S contact the dealer through which you initially purchased the product If you cannot reasonably have the product repaired in your area you may contact CI to obtain current product repair
16. segment rise Used in conjunction with an entered Chord Length to solve for the radius of a circle or with an entered radius to solve for the Chord Length UsER s GUIDE 7 Column Cone Function The Column and Cone function helps you quickly estimate volume and surface area of columns or cones Column and Cone Column Cone With an entered diameter and height the first and second presses of following S39 will calculate the total volume and surface area of a Column the third and fourth consecutive presses of calculate the total volume and surface area of a Cone For Trig Model 4080 Users As this model does not have a key you must enter the height using the key Compound Miter Crown Moulding Keys The Construction Master Pro also calculates compound miter cut angle solutions for cutting and installing crown moulding on a wall The Compound Miter function can also be used for finding angle cuts for many types of compound miter problems such as siding railing and trim Compound Miter With stored spring crown angle and entered wall corner angle consecutive presses of will calculate the following Press Result 1 Miter Angle MITR 2 Bevel Angle BEVL 3 Redisplays Stored Spring Angle SPRG 4 Redisplays Entered Wall Corner Angle CRNR Wall Corner Angle entries of less than 25 into will be assumed to be the number of sides of a polygon in this case the calculator will calculate the u
17. 37 Number of Paver Bricks 37 BOARD FEET LUMBER ESTIMATION 38 Total Board Feet With Dollar 38 Number of Board Feet Based on Entered Volume 38 CIRCLE AND ARC CALCULATIONS sse 39 Circumference and Area of a 39 Arc Length Degree and Diameter 39 Arc Length Chord Length and Segment Rise Known 39 Arc Calculations Arc Length and Diameter Known 40 ARCHED SEGMENT WALLS sse 41 Arched Segment Walls Arched Windows No Base 41 Arched Segment Walls Arched Windows With Base 42 Arched Segment Walls Chord Length and Segment Height doloe EE 43 COMPOUND MITER 45 Compound Miter Cuts enn 45 CONCRETE PAVN G tee fere eet tet Rc t c ipn teas 46 Volume of Concrete for a 46 Concrete Columns 47 Complex Concrete Volume sse 48 Polygon Finding Angles Based on Entered Radius and Number of Sides ieena 49 Concrete Footings NOT AVAILABLE ON TRIG MODEL 4080 50 Squaring up a Founda
18. D 2 8 GD GED 4 Bik Size B AR 128 SQ INCH Number of Paver Bricks How many paver bricks 32 Square Inch size will you need to fill a 5 Foot by 15 Foot walkway KEYSTROKE DISPLAY 1 Enter brick area into Block Size storage key 0 3 2 GED GED ED 4 Size B AR 32 SQ INCH 2 Enter length and width as height 5 c LNTH 5 FEET 0 INCH CD 5 C HGHT 15 FEET 0 INCH 3 Find the number of bricks Blocks BLKS 337 5 338 Bricks 4 Reset block area to default value CD 2 8 GED GED ED 4 Bik Size B AR 128 SQ INCH USER S GUIDE 37 BOARD FEET LUMBER ESTIMATION The Construction Master Pro easily calculates board feet for lumber estimation problems The default entry format for Board Feet is Inch x Inch x Feet e g 2 3 4 1 4 is 2 Inches x 4 Inches x 14 Feet You can also convert Cubic values volume to Board Feet Total Board Feet With Dollar Cost Find the total board feet for the following board sizes If the boards cost 250 per MBM what is the total cost Use 0 Cost to figure total lumber cost KEYSTROKE DISPLAY 1 Enter board sizes convert to board feet and store in memory 0 2 4 1 4 8 BDFT 9 333333 2 1 0 1 6 Gm 8 BDFT 26 66667 M 2 1 2 1 8 Gm 8 BDFT 36 2 Recall total Board Feet and calculate total cost BDFT 72 2 5
19. INCH Cm IJ 1 2 FEET 9 5 8 INCH IJ 2 1 FEET 4 13 16 INCH IJ 3 FEET O INCH It is not necessary to continue pressing when displaying each Jack rafter size 5 Find Irregular Jack plumb level and cheek cut angles PLMB 33 69 LEVL 56 31 CHK4 41 19 6 Find regular incremental jack adjustment and Regular Jack lengths JKOC 16 INCH INCR 1 FEET 9 3 16 INCH JK 1 2 FEET 10 3 8 INCH JK 2 1 FEET 1 1 4 INCH JK 3 FEET 0 INCH 7 Find Regular Jack plumb level and cheek cut angles PLMB 30 26 LEVL 59 74 CHK1 48 81 USER S GUIDE 63 Irregular Hip Valley and Jack Rafters Ascending with Jacks Mating at Hip Valley You re working with a 7 12 Pitch and half your overall span is 4 Feet The Irregular Pitch is 8 12 and the Jacks need to mate at the Hip The maximum allowable On center spacing is 16 Inches Find the Jack rafter sizes from smallest to largest ascending order Complete the following steps 1 Set Preference display to ASCEND Jack sizes in ascending order 2 Set Preference display to IRJK JAC JAC Jacks mate 3 Find the length of the common rafter 4 Find the length of the adjoining Irregular Hip or Valley and the cut angles 5b Find the o c incremental jack adjustment Jack lengths and cut angles on the Irregular pitched side 6 Find the o c incremental jack adjustment Jack lengths and cut angles on the Regular pitched side Note After completing this example you m
20. and adapt the keystrokes to your specific application Please note that some of the following examples will not apply to your specific calculator model For example the Trig Model 4080 has trigonometry functions but does not have D ZD or CD keys or Blocks Footing or Drywall functions It is good practice to clear your calculator press twice before beginning each problem And remember to use the Backspace key to correct entries one entry at a time LINEAR MEASUREMENT EXAMPLES Adding Linear Measurements Find the total length of the following measurements 5 Feet 4 1 2 Inches 8 Inches and 3 5 Yards KEYSTROKE DISPLAY 1 Add the measurements 0 5 C 4 052 o 0 2 5 FEET 4 1 2 INCH uz 6 FEET 0 1 2 INCH 3 9 5 3 5 2 Find the total 16 FEET 6 1 2 INCH Cutting Boards How many 2 foot 2 inch pieces can be cut from one 10 foot board KEYSTROKE DISPLAY Divide board length by smaller cuts 0 1 0 10 FEET e 2 2 0 4 615385 4 whole pieces USER S GUIDE 29 Window Measurement What is the total width of three window openings if each measures 2 Feet 5 Inches in width KEYSTROKE DISPLAY 1 Enter window width 0 2 C 5 uz 2 FEET 5 INCH 2 Find total width 7 FEET 3 INCH 3 Convert to Decimal Feet 7 25 FEET Calculating the Center Point You have a room that measures 13 Feet 8 Inches by 14 Feet 10 Inches Find the center point to install a ceiling fan
21. and previously entered or calcu lated right triangle rafter values e g pitch rise run Repeated presses of the key will display the incremental jack adjustment all the rafter sizes on the Regular pitch side as well as display the plumb level and cheek cut angle values Additional presses will display the rafter sizes on the Irregular pitch side if an Irregular Pitch was entered see above or repeat the previously displayed values Cont d 12 CONSTRUCTION MAsTER Pho TRIG DESKTOP Cont d cao Note You may set your calculator to display the Jack Rafter lengths in either ascending or descending order see Preference Settings on page 83 Note You may set your calculator to mate up with the Jack Rafters rather than using the entered or default On center spacing for both sides see Preference Settings on page 83 Store On center Spacing Used to store value other than the default of 16 Inches On center 9 CD 5 stores an 18 inch On center for Jack Rafter calculations Press E 5 to review the stored value Irregular Side Jacks Ir Jack Operates same as but displays the rafter values from the Irregular pitched side first Rake Wall Function cuc ca 5 Rake Wall R Wall This function finds the stud sizes in a Hake Wall based on calculated or entered values for pitch rise and or run Repeated presses of GZ will display the various sizes The sizes ca
22. button located above the key below the key on the Desktop model will also perform a Full Reset 82 CONSTRUCTION MASTER Pno TRIG DESKTOP APPENDIX B PREFERENCE SETTINGS The Construction Master Pro calculators have Preference Settings that allow you to customize or set desired dimensional formats and calculations The options vary per model If you replace your batteries or perform a Full Reset press B hold down and press G3 your calculator will return to the following settings in addition to those listed on the previous page Depressing the Reset button located above the GM key below the key on the Desktop model will also perform a Full Reset PREFERENCE OPTIONS 1 Fractional Resolution 2 Area Display Format 1 16 displays fractional values to the nearest 16th of an Inch 1 32 1 64 1 2 1 4 1 8 Standard if units entered are the same e g Feet x Feet the answer will remain in this format Square Feet but if units entered are different e g Inches x Feet area answer will be dis played in Square Feet Square Feet area answers always displayed in Square Feet regardless of unit entry e g Inches x Inches Square Feet Square Yards area answers always displayed in Square Yards e g Feet x Feet Square Yards Square Meters area answers always displayed in Square Meters e g Feet x Feet Square Meters
23. by 1 Foot 9 5 8 Inches by 2 Feet 4 Inches KEYSTROKE DISPLAY 1 Find volume in Cubic Feet 0 3 3 FEET C 9 C23 5 0 8 1 FEET 9 5 8 INCH 3 2 4 i 12 61458 cu 2 Convert to Cubic Yards 0 467207 cu vp If the Volume Display Format Preference Setting is set to Cubic Yards or Cubic Meters your result will display accordingly See Preference Settings on page 83 Using the Multi Function Key to Find Volume Wall Area and Room Area NOT AVAILABLE ON TRIG MODEL 4080 Find the volume wall area and total surface room area if you have a length of 15 feet width of 20 feet and height of 12 feet Room Area includes four walls plus ceiling area KEYSTROKE DISPLAY 0 CD 5 er LNTH 15 FEET O INCH 2 0 C WDTH 20 FEET 0 INCH CD 2 Height HGHT 12 FEET 0 INCH c VOL 3600 cu rEET WALL 840 SQ FEET c ROOM 1140 sa FEET 32 CONSTRUCTION MAsTER TRIG DESKTOP Volume of a Cylinder Calculate the volume of a cylinder with a diameter of 2 Feet 4 Inches and a height of 4 Feet 6 Inches 4 6 Note For a cylinder use the Column function KEYSTROKE DISPLAY 1 Find Circle area 0 2 C 4 uz 2 FEET 4 INCH AREA 4 276057 so FEET 2 Enter height and find volume 4 6 C HGHT 4 FEET 6 INCH COL 19 24226 cu FEET Volume of a Cone Calculate the volume of a Cone with a diameter of 3 Feet 6 Inches and a height of 5 Feet KEYSTROKE DISPLAY 1 Find C
24. by 5 footings to find total concrete volume 5 38 2716 cu vp 4 Clear and return stored footing size to default ALL CLEArEd 50 CONSTRUCTION MASTER PRo TRIG DESKTOP Squaring up a Foundation A concrete foundation measures 45 Feet 6 Inches by 23 Feet 8 Inches Find the diagonal measurement square up to ensure the form is perfectly square 23 8 n 45 6 KEYSTROKE DISPLAY 1 Enter sides as rise run 0 2 3 uz RISE 23 FEET 8 INCH 4 5 e 6 CD RUN 45 FEET 6 INCH 2 Find the square up diagonal Diag DIAG 51 FEET 3 7 16 INCH Alternative Method using and keys NOT AVAILABLE ON TRIG MODEL 4080 1 Enter sides as length and width 0 2 3 uz uc LNTH 23 8 INCH 4 5 6 CD Cz WDTH 45 FEET 6 INCH 2 Find the square up diagonal SQUP 51 FEET 3 7 16 INCH User s GUIDE 51 DRYWALL NOT AVAILABLE ON TRIG MODEL 4080 Number of Drywall Sheets for a Given Area Find the number of 4 x 8 4 x 9 and 4 x 12 sheets to cover an area of 150 Square Feet KEYSTROKE DISPLAY 1 Enter area 0 CD 5 0 Ga 150 sa FEET 2 Find the number of 4 x 8 sheets 4 x 9 sheets and 4 x 12 sheets required D Drywall 4X8 4 6875 5 4 8 Sheets C 4X9 4 166667 5 4 x 9 Sheets Height 4X12 3 125 4 4 x 12 Sheets Height 150 sa FEET Number of Drywall Sheets for a Given Length Find the number of 4 x 8 4 x 9 and 4 x 12 sheets to cover a l
25. foot 3 inch segment rise KEYSTROKE DISPLAY 1 Enter the chord length of the segment as Run 0 3 C2 6 RUN 3 FEET 6 INCH 2 Enter the height of the segment as Rise 1 3 C22 RISE 1 FEET 3 INCH 3 Find the Radius Radius RAD 1 FEET 10 3 16 INCH Cont d USER S GUIDE 39 Cont d KEYSTROKE DISPLAY 4 Find the Arc Angle Arc ARC 142 15 5 Find the Arc Length Arc ARC 4 7 1 16 INCH Arc Calculations Arc Length and Diameter Known Find the arc degree chord length segment rise segment and pie slice area and segment rise given a 5 foot diameter and an arc length of 3 Feet 3 Inches Spa ZA Su Segment Rise 3 0 5 16 Chord Length 5 gt DISPLAY 1 Enter Circle diameter Note enter diameter into the key 5 DIA 5 FEET O INCH 2 Enter Arc length 3 a 3 2 CTS ARC 3 FEET INCH 3 Find degree of Arc Arc ARC 74 48 4 Find chord length Arc CORD 3 FEET 0 5 16 INCH 5 Find segment area SEG 1 051381 so FEET 6 Find pie slice area Arc PIE 4 0625 so FEET 7 Find segment rise Arc RISE 0 FEET 6 1 8 INCH 40 CONSTRUCTION MASTER Pno TRIG DESKTOP ARCHED SEGMENT WALLS The arc function can also calculate the outside default and inside lengths of arched walls The outside arched wall lengths are meas ured outside of the arc see diagram below The inside arche
26. for inside of the arc Descending Jack rafters are displayed from largest to smallest size Ascending Jack rafters are displayed from smallest to largest size Cont d 84 CONSTRUCTION MASTER Pno TRIG DESKTOP Cont d PREFERENCE 8 Irregular Jack Rafters O C or Mate 9 Exponent Off or On 10 Meter Linear Display 11 Decimal Degree Display 12 Fractional Mode OPTIONS OC OC On center spacing maintained on both regular and irregular sides JAC JAC regular irregular Jack rafters mate at the hip valley e g On center spacing not maintained on both sides Off Exponential Mode is Off turns on Auto ranging e g if display can t show seven digits will display in next largest unit On Exponential Mode is On 0 000 linear Meter answers are always displayed to third decimal place FLOAt linear Meter answers are displayed to the maximum number of decimal places e g 1 234 M 2 56 M 3 794 M 0 00 FLOAt Standard fractions are displayed to the nearest fraction Constant fractions are displayed in the set fractional resolution User s GUIDE 85 How to Set Preferences The following sections detail Preference Setting options for the Construction Master Pro calculators Enter the Preference Mode by pressing E Prefs Access each category by pressing the key until you reach the desired setting Within eac
27. frame the window Ee 2 10 1 2 Rise 4 8 1 Run KEYSTROKE DISPLAY 1 Enter chord length 0 8 CM 1 RUN 8 FEET 1 INCH 2 Enter rise 2 C 0 0 C23 0 0 2 RISE 2 FEET 10 1 2 INCH 3 Enter base height into Rake Wall function 2 c BASE 2 FEET 0 INCH 4 Find Arc angle Arc ARC 141 70 Cont d 42 CONSTRUCTION MASTER TRIG DESKTOP Cont d KEYSTROKE DISPLAY 5 Find Arc length ARC 10 FEET 7 INCH 6 Display chord length CORD 8 FEET 1 INCH 7 Find segment area Arc SEG 16 96327 sa INCH 8 Find pie slice area Arc PIE 22 63527 sa INCH 9 Display entered rise segment height RISE 2 FEET 10 1 2 INCH 10 Display On center spacing Arc OC 16 INCH 11 Find the arched segment wall lengths Arc AW 1 2 FEET 2 9 16 INCH Arc AW 2 2 FEET 11 3 16 INCH Arc AW 3 4 FEET 9 1 8 INCH Arched Segment Walls Chord Length and Segment Height Known You re building a circular or arched segment wall Given a chord length of 15 Feet and a segment height of 5 Feet find all arc values and inside arched segment wall lengths The On center spacing is 16 Inches 5 1l 15 KEYSTROKE DISPLAY 1 Change arched walls preference setting to inside Arc G3 E73 ca cn ca ca AW outSidE AW inSidE 0 Cont d USER S GUIDE 43 Cont d KEYSTROKE DISPLAY 2 Enter chord length and segment height rise 0 1 5 Ga a RUN 15 FEET 0 INCH 5
28. information and charges including freight and duties 96 CONSTRUCTION MASTER PRo TRIG DESKTOP Disclaimer CI MAKES NO WARRANTY OR REPRESENTATION EITHER EXPRESS OR IMPLIED WITH RESPECT TO THE PRODUCT S QUALITY PERFOR MANCE MERCHANTABILITY OR FITNESS FOR A PARTICULAR PUR POSE AS A RESULT THIS PRODUCT INCLUDING BUT NOT LIMITED TO KEYSTROKE PROCEDURES MATHEMATICAL ACCURACY AND PREPROGRAMMED MATERIAL IS SOLD AS IS AND YOU THE PUR CHASER ASSUME THE ENTIRE RISK AS TO ITS QUALITY AND PER FORMANCE IN NO EVENT WILL CI BE LIABLE FOR DIRECT INDIRECT SPECIAL INCIDENTAL OR CONSEQUENTIAL DAMAGES RESULTING FROM ANY DEFECT IN THE PRODUCT OR ITS DOCUMENTATION The warranty disclaimer and remedies set forth above are exclusive and replace all others oral or written expressed or implied No Cl dealer agent or employee is authorized to make any modification extension or addition to this warranty Some states do not allow the exclusion or limitation of implied warranties or liability for incidental or consequential damages so the above limitation or exclusion may not apply to you This warranty gives you specific rights and you may also have other rights which vary from state to state USER S GUIDE 97 FCC Class B This equipment has been certified to comply with the limits for a Class B calculating device pursuant to Subpart J of Part 15 of FCC rules Legal Notes Software copyrighted and licensed to
29. or point to point length of the Common rafter 0 7 uz uz PTCH 7 INCH 1 4 e 200236026 7 FEET 2 INCH RUN 7 FEET 2 INCH Diag DIAG 8 FEET 3 9 16 INCH 2 Find Plumb and Level cuts Diag PLMB 30 26 Diag LEVL 59 74 Note The Common rafter calculation is the point to point length and does not include the overhang or ridge adjustment Common Rafter Length Pitch Unknown Find the common rafter length for a roof with a rise of 6 Feet 11 1 2 Inches and a run of 14 Feet 6 Inches Solve for the Pitch in Degrees and in Inches KEYSTROKE DISPLAY Find Diagonal and Pitch 0 6 00 3 o 0 2 RISE 6 FEET 11 1 2 INCH CD 4 eB 6 RUN 14 FEET 6 INCH Diag DIAG 16 FEET 1 INCH PTCH 5 3 4 INCH PTCH 25 64 58 CONSTRUCTION MASTER PRo TRIG DESKTOP Angle and Diagonal Hypotenuse Find the Diagonal Hypotenuse and degree of angle of a right trian gle that is 9 Feet high and 12 Feet long KEYSTROKE DISPLAY 1 Enter Rise and Run 0 9 Rise RISE 9 FEET 0 INCH 0 0 cm RUN 12 FEET O INCH 2 Solve for Diagonal Hypotenuse and Pitch in Inches and Degree of Angle Uu DIAG 15 FEET O INCH PTCH 9 INCH PTCH 36 87 Rise Find the Rise given a 7 12 Pitch and a Run of 11 Feet 6 Inches KEYSTROKE DISPLAY 0 PTCH 7 INCH 1 6 uz RUN 11 FEET 6 INCH RISE 6 FEET 8 1 2 INCH Rise and Diagonal Find the Rise and Diagonal of a right triangle given a 30 Pitch
30. size of 3 5 8 Inches x 2 1 4 Inches x 7 5 8 Inches including 3 8 inch mortar 4 Inches x 2 5 8 Inches x 8 Inches 6 CONSTRUCTION MASTER Pho TRIG DESKTOP Circular Arc Function Keys The circle key helps you quickly solve circular area volume or arc problems Circle Displays and calculates the following val ues given an entered circle diameter or radius Diameter DIA Circle area AREA Circumference CIRC To enter a diameter e g 10 Feet press 1 0 Radius Enters or calculates the circle radius 0 8 Arc Length or Degree of Arc multi function key that enters or calculates Arc Length or Degree of Arc and further solves for additional circular arc values including arched segment walls based on the stored On center spacing listed below Press Result Arc Length or Degree of Arc ARC Chord Length CORD Segment Area SEG Pie Slice Area PIE Segment Rise RISE Stored On Center Spacing OC Length of Arched Wall 1 AW 1 The calculator will calculate arched segment wall lengths if applicable with consecutive presses of the key until it reach es the last wall length Run Chord Length Enters or calculates the Chord Length Used in conjunction with an entered segment rise to solve for the radius of a circle or with an entered radius to solve for the segment rise Rise Segment Rise Enters or calculates the
31. 080 One 3 Volt Lithium CR 2032 battery Replacing the Battery ies Should your calculator display become very dim or erratic replace the battery ies Note Please use caution when disposing of your old battery as it contains hazardous chemicals Replacement batteries are available at most discount or electronics stores You may also call Calculated Industries at 1 775 885 4900 Battery Replacement Instructions The Hand held Models Construction Master Pro v3 1 4065 Construction Master Pro Trig v3 1 4080 To replace the batteries slide open the battery door at top backside of unit and replace with new batteries Make sure the batteries are facing positive side up Construction Master Pro Desktop v3 1 44080 To replace the battery use a small Phillips head screwdriver and unscrew the two 2 screws on the base of the unit Carefully remove the lower back housing Remove the battery from the clip and replace it with a new battery with the positive side up Then replace the backplate and reattach the screws RESET If your calculator should ever lock up press Reset a small hole located above the key below the key on the Construction Master Pro Desktop to perform a total reset A 92 CONSTRUCTION MASTER PRo TRIG DESKTOP APPENDIX F AREA VOLUME FORMULAS AREA FORMULAS a Square Triangle Area a Area 1 2 ab Octagon Area 0 2 x 2 8
32. 1 FEET 6 1 2 INCH JK 1 1 FEET 6 1 2 INCH JK 2 3 FEET 1 1 16 INCH JK 3 4 FEET 7 9 16 INCH E pp p p pm E 18 ES 8 tow L3 bo x PLMB 30 26 LEVL 59 74 Jack CHK1 48 81 7 Reset jack rafter Preference Settings 0 Cl ca 673 ca 6 amp 3 JACK ASCEnd Set Preference to Descend plus sign JACK dESCEnd Set Preference to Jacks On Center IRJK JAC JAC IRJK OC OC Exit Preference Settings 0 The stored On center spacing is used as the maximum allowable spacing Therefore it is assigned to the side with the largest entered pitch In this example the Irregular side pitch is larger than the Regular side pitch thus the Irregular side is calculated using the maximum On center value 16 Inches If the Regular pitch side had the larger pitch it would require the larger 16 Inches On center User s GUIDE 65 Rake Wall No Base Find each stud size in a Rake Wall with a peak rise of 4 Feet and a length run of 8 Feet Use 16 Inches as your spacing 4 Rise 8 Note The wall has no base KEYSTROKE DISPLAY 1 Enter Rise and Run and display o c spacing 0 4 Rise RISE 4 FEET 0 INCH Run RUN 8 FEET 0 INCH 5 OC 16 INCH If 16 inch is not displayed enter 1 6 Em 5 2 Find stud lengths R Wall RWOC 16 INCH RW 1 3 FEET 4 INCH RW 2 2 FEET 8 INCH RW 2 FEET 0 INCH RW 4 1 FEET 4 INCH RW 5 FEET 8 INCH B
33. 28 Circle Circumference 2 Area 2 nr Ellipse Area USER S GUIDE 93 SURFACE AREA VOLUME FORMULAS coe Id Cube Surface Area 6a Volume a Rectangle Surface Area 2hw 2hl 2lw Volume xwxh Cone Surface Area nr v h if you add the base _ nr h Volume 3 Sphere Surface Area 4 Volume 4 83nr Cylinder Surface Area 2nrh 2 Volume 94 CONSTRUCTION MASTER PRO TRIG DESKTOP REPAIR AND RETURN WARRANTY REPAIR AND RETURN INFORMATION Return Guidelines 1 Please read the Warranty in this User s Guide to determine if your Calculated Industries product remains under warranty before calling or returning any device for evaluation or repairs If your product won t turn on check the batteries as outlined in the User s Guide If you need more assistance please go to the website listed below If you believe you need to return your product please call a Calculated Industries representative between the hours of 8 00am to 4 00pm Pacific Time for additional information and a Return Merchandise Authorization RMA Call Toll Free 1 800 854 8075 Outside USA 1 775 885 4900 www calculated com warranty User s GUIDE 95 WARRANTY Warranty Repair Service U S A Calculated Industries CI warrants this product against defects in materi als and workmanship for a period of one 1 year from the date of original
34. 4 Given side A and angle a find Side C e g 3 H 6 5 3 0 3 GB Side B Angle b 90 a Given side A and angle b find Side B AER b Side C A b ED O Angle a 9 b 8B Given side B and angle a find Side A Side C B a 0o Given side C and angle a find Side A Side B Given side A and side find Angle a AGCO Angle b AGCO E Given side B and angle b find Side C B b Side A B amp b e USER S GUIDE 79 Converting Percent Grade to D M S You are grading a piece of property and the site plans call for an embankment with a grade no steeper than 35 Your level shows the slope at an 18 15 angle Will this pass KEYSTROKE DISPLAY Enter grade and convert to degrees minutes seconds 0 3 5 dms deg DMS 19 17 24 Since your level reading of 18 15 is less steep than 19 17 24 the slope will pass inspection Converting Tangent Pitch to Angle Find the angle and corresponding tangent for a roof with an 8 12 Pitch KEYSTROKE DISPLAY 1 Enter pitch 0 PTCH 8 INCH 2 Convert Pitch to degrees PTCH 33 69 3 Find Tangent or Slope Tan 0 666667 Converting Roof Angle in Degrees to Pitch in Inches Convert a roof angle of 30 25 to Pitch in Inches KEYSTROKE DISPLAY 1 Enter angle 0 3 0 2 5 0 583183 2 Convert to Pitch Slope SLP 0 583183 PTCH 7 INCH 80 CONSTRUCTION MAS
35. A VOLUME 22 Linear Conversions sssssssssssseeeeeee ener 22 Converting Feet Inch Fractions to Decimal Feet 22 Converting Decimal Feet to Feet Inch Fractions 22 Converting Fractional Inches to Decimal Inches 23 Converting Decimal Inches to Fractional Inches 23 Square Conversions esses eene 23 Cubic 23 PERFORMING BASIC WITH DIMENSIONS 24 Adding Dimensions eee nee enne 24 Subtracting Dimensions ssssssseeeene 24 Multiplying Dimensions eeeeeeenmm 24 Dividing Dimensions 24 Percentage 25 MEMORY OPERATION 25 Basic Cumulative Memory 26 Permanent Storage Registers M1 and 2 26 PAPERLESS TAPE 27 EXAMPLES USING THE CONSTRUCTION MASTER PRO 29 LINEAR MEASUREMENT 29 Adding Linear Measurements essen 29 Cutting Boards
36. ASE FEET 0 INCH 3 Find Rake Wall angle of incline RW 26 57 Note By setting the Rake Ascend Preference see Preference Settings on page 83 you may view Rake Wall stud lengths from smallest to largest size Note You can also solve if you only know the Rise and Pitch Run and Pitch or Diagonal and Pitch Simply enter the known values via GED G23 or GZ keys similar to Step 1 above then solve for Rake Wall stud lengths as seen in Step 2 66 CONSTRUCTION MASTER PRo TRIG DESKTOP Rake Wall With Base Find each stud size in a rake wall with a peak rise of 4 Feet a length run of 8 Feet and a base of 5 Feet Use 16 Inches as your On center spacing 5 Base 4 Rise 8 Run KEYSTROKE DISPLAY 1 Enter Rise Run and o c spacing 0 4 Rise RISE 4 FEET 0 INCH RUN 8 FEET 0 INCH a G OC 16 INCH If 16 inch is not displayed enter 1 6 5 2 Enter base then find stud lengths and angle of incline 5 CB R Wall BASE 5 FEET 0 INCH RWOC 16 INCH RW 1 8 FEET 4 INCH RW 2 7 FEET 8 INCH RW 7 FEET 0 INCH RW 4 6 FEET 4 INCH RW 5 5 FEET 8 INCH BASE 5 FEET 0 INCH RW 26 57 USER S GUIDE 67 ROOFING MATERIALS The Roof function solves for the amount of bundles and squares for standard gable end style roofs Bundles are based on a coverage area of 33 33 Square Feet and squares are based on 100 Square Feet Roof Cov
37. CONSTRUCTION MASTER PRO y User s Guide For Models 4065 v3 1 Construction Master Pro 4080 v3 1 Construction Master Pro Trig 44080 v3 1 Construction Master Pro Desktop CALCULATED Z2 INDUSTRIES CONSTRUCTION MASTER PRo v3 1 USER S GUIDE This User s Guide helps you solve common construction math and material estimation problems using the latest Construction Master Pro calculators three of the most powerful feet inch fraction calculators to date The Construction Master Pro Ill Series 1 Construction Master Pro 4065 v3 1 2 Construction Master Pro Trig 4080 v3 1 3 Construction Master Pro Desktop 44080 v3 1 IMPORTANT The Construction Master Pro Trig does not have Block Concrete Footing Drywall or Length Width and Height functions These keys are replaced with standard trigonometric keys INTRODUCTION The Construction Master Pro line includes the most advanced feet inch fraction calculators designed specifically for building pro s The Pro calculators handle practically any problem involving meas urements and can be used to save time prevent errors and accu rately perform common building projects such as estimating con crete volume squaring up foundations framing roofs ordering lum ber building stairs walls laying driveways carpet or floor covering figuring precise angle calculations or simply working in feet inch fractions or decimal feet Your Calculator Helps You
38. Calculated Industries by Construction Master Technologies LLC 2005 User s Guide copyrighted by Calculated Industries Inc 2005 Construction Master and Calculated Industries are registered trade marks of Calculated Industries Inc PATENT PENDING ALL RIGHTS RESERVED Designed in the U S A Looking For New Ideas Calculated Industries a leading manufacturer of special function calculators and digital measuring instruments is always looking for new product ideas in these areas If you have an idea or a suggestion for improving this product or User s Guide please submit your comments online at www calculated com under Contact Us Product Idea Submittal Agreement Thank you 98 CONSTRUCTION MASTER TRIG DESKTOP INDEX Accuracy Errors 91 Adding Linear Measurements 29 Angle Rise and Hypotenuse Known 81 Angle and Diagonal Hypotenuse 59 Arc Caculations Arc Length and Diameter Known 40 Arc Length 39 Arched Segment Walls 41 Arched Windows 41 42 Area and Volume Keys Not Available on Trig Model 4080 4 Area Calculations 31 Area Rectangular 31 Area Square 31 Area Volume Formulas 93 Auto Shut Off 91 Baluster Spacing 77 Basic Math with Dimensions 24 Basic Operation Keys 1 Batteries 92 Block Brick Function 6 Blocks Number of Based on Calculated Perimeter 36 Blocks Number of Based on Entered Area 35 Blocks Number of Based on Entered Length 36 Blocks
39. D 0 c RISE 10 FEET O INCH OS Ga RUN 15 FEET 0 INCH 5 0 LNTH 50 FEET 0 INCH 3 0 C WDTH 30 FEET 0 INCH 2 Find roof area number of roofing squares number of bundles stored bundle size number of 4 x 8 sheets Pitch and plan area E Roof ROOF 1082 776 sa FEET Uu SQRS 18 03 ca BNDL 54 08 Diag B SZ 33 33 so FEET Uu 4X8 56 34 Diag PTCH 8 INCH um PLAN 1500 so FEET For Trig Model 4080 Users As this model does not have and keys you must calculate area the stan dard way e g L x W or entering 200 Square Feet then press um USER S GUIDE 69 STAIR LAYOUT EXAMPLES Tread Wiath Inclination Stair Layout Definitions Rise The floor to floor or landing to landing rise is the actual ver tical rise required for building a stairway after the finish flooring has been installed Run The run of a stairway is the amount of horizontal space required The total run of a stairway is equal to the width of each tread multiplied by the number of treads Desired Riser Height The desired riser height is the amount of vertical rise you allow for each individual riser in the stairway This is sometimes dictated by local code Actual Riser Height The actual height of each riser is measured from the top of one tread to the top of the next tread 70 CONSTRUCTION MASTER Pro TRIG DESKTOP Number of Risers The number of risers includes both the first and the last riser of th
40. ENDIX PREFERENCE 5 83 How to Set 86 Accessing Preference 5 86 APPENDIX C CARE 89 APPENDIX D IMPORTANT NOTES FOR OWNERS OF PREVIOUS CONSTRUCTION MASTERS e 90 APPENDIX E ACCURACY ERRORS AUTO SHUT OFF BATTERIES RESET ient tnnt 91 AGGURAGY ERRORS x eicere eet se 91 Error Godes meten eme 91 AUTO SHU FOF F uci etti mtt e ees 91 BAPER ES S ee 92 Replacing the 92 Battery Replacement 92 APPENDIX F AREA VOLUME 93 AREA FORMULAS esee eere 93 SURFACE AREA VOLUME FORMULAS 94 REPAIR AND RETURN 95 WARRANTY 96 GETTING STARTED KEY DEFINITIONS Basic Operation Keys On Clear Turns power on Pressing once clears the display Pressing twice clears all temporary values Oft Off Turns all power off clearing all non permanent registers For desktop model 44080 press to turn p
41. Hip Rafter 54 CONSTRUCTION MASTER Pno TRIG DESKTOP Roof Framing Definitions Rise The vertical distance measured from the wall s top plate to the top of the ridge Span The horizontal distance or full width between the outside edges of the wall s top plates Run The horizontal distance between the outside edge of the wall s top plate and the center of the ridge in most cases this is equivalent to half of the span Pitch Pitch and slope are synonymous in modern trade language Pitch slope of a roof is generally expressed in two types of measure ment 1 Ratio of unit rise to unit run 7 12 or 7 Inch 2 Angle of rafters in degrees 30 26 The unit rise is the number of Inches of rise per Foot 12 Inches of unit run The unit run is expressed as one Foot 12 Inches Plate The top horizontal wall member that the ceiling joist and rafters sit on and fasten to Ridge The uppermost point of two roof planes This rafter is the uppermost rafter that all Hip Valley Valley Jack and Common rafters are fastened to Rafters Rafters are inclined roof support members Rafters include the following types Common Rafter The Common connects the plate to the ridge and is perpendicular to the ridge Hip Rafter The Hip rafter extends from the corner of two wall plates to the ridge or King rafter at angle other than 90 The Hip rafter is an external angle of two planes Valley Rafter The Valley rafter
42. ONSTRUCTION MASTER Pho TRIG DESKTOP Weight Keys 3 4 6 0 Kilograms kg Enters or converts weight or vol ume value to Kilograms A dimensioned volume will convert using the stored Weight per Volume value Metric Tons met tons Enters or converts a weight or volume value to Metric Tons A dimen sioned volume will convert using the stored Weight per Volume value Pounds lbs Enters or converts a weight or vol ume value to Pounds A dimensioned volume will convert using the stored Weight per Volume value Tons tons Enters or converts a weight or vol ume value to Tons A dimensioned volume will con vert using the stored Weight per Volume value Store Weight per Volume wt vol Stores a new Weight per Volume value as Tons per Cubic Yard or other format as listed below Note After entering a value and pressing KIM 0 continue pressing the 0 digit key until you ve reached the desired weight per volume format To recall your setting press 0 Ton Per CU YD LB Per CU YD LB Per CU FEET MET Ton Per CUM kG Per CUM This value is permanently stored until you change it or perform a Clear All C UsER s GUIDE 5 Construction Project Keys and Functions The following Construction Project Keys and Functions help you instantly figure quantities and costs of materials so you can build like a pro Block Brick Function NOT A
43. REA VOLUME Linear Conversions Convert 14 Feet to other dimensions KEYSTROKE DISPLAY 0 1 4 14 FEET 4 666667 14 FEET O INCH uz 168 INCH c 4 267 M cm 426 72 cM 9 mm 4267 2 Note When performing multiple conversions you only have to press the key once except when accessing secondary functions such as for Centimeters Converting Feet Inch Fractions to Decimal Feet Convert 15 Feet 9 1 2 Inches to Decimal Feet Then convert back to Feet Inch Fractions KEYSTROKE DISPLAY 0 1 5 a 9 C23 0 2 15 FEET 9 1 2 INCH 15 79167 FEET C 15 FEET 9 1 2 INCH Converting Decimal Feet to Feet Inch Fractions Convert 17 32 Feet to Feet Inch Fractions KEYSTROKE DISPLAY 0 1 7 9 3 2 17 32 rEET 17 FEET 3 13 16 INCH cC 17 32 FEET Repeated presses of or E will toggle between Feet Inch Fractions and Decimal Feet or Inches 22 CONSTRUCTION MASTER Pro TRIG DESKTOP Converting Fractional Inches to Decimal Inches Convert 8 1 8 Inches to Decimal Inches Then convert to Decimal Feet KEYSTROKE DISPLAY 0 inch 1 8 1 8 INCH uz 8 125 INCH 0 677083 rEET uz 8 125 INCH Converting Decimal Inches to Fractional Inches Convert 9 0625 Inches to Fractional Inches Then convert to Decimal Feet KEYSTROKE DISPLAY 0 9 0 6 2 5 Gp 9 0625 INCH uz 9 1 16 INCH Feo M 0 755208 rEET Repeated presses of or GED will toggle between Feet Inch Fractions and Decim
44. RISE 5 FEET 0 INCH 3 Find Arc angle Arc ARC 134 76 4 Find Arc length Arc ARC 19 FEET 1 5 16 INCH 5 Display entered chord length CORD 15 FEET 0 INCH 6 Find segment area Arc SEG 54 19722 so FEET 7 Find pie slice area Arc PIE 77 63472 sa FEET 8 Display entered segment height rise Arc RISE 5 FEET 0 INCH 9 Display stored On center spacing for the wall Arc OC 16 INCH 10 Find arched segment wall lengths AW 1 4 FEET 10 11 16 INCH Arc AW 2 4 FEET 6 5 8 INCH Arc AW 3 FEET 11 3 8 INCH Arc AW 4 FEET 0 1 16 INCH LArc hi AW 5 1 FEET 6 1 4 INCH 11 Change arched walls preference setting back to outside Arc cH Gla E73 ca E73 E73 AW inSidE AW outSidE 0 Successive presses of WB will toggle to the beginning 44 CONSTRUCTION MASTER Pho TRIG DESKTOP COMPOUND MITER Compound Miter Cuts You re installing crown moulding on the upper wall of your living room If the wall corner angle is 60 and the spring crown angle is 38 find the miter angle and bevel angle cut Compound Miter pring Angle Plan View of a Mitered Joint Wall Angle Corner KEYSTROKE DISPLAY 1 Store the spring angle 0 3 8 Ga Spring Angle SPRG 38 00 2 Enter wall corner angle and calculate miter angle 6 0 9 MITR 46 84 3 Calculate bevel angle BEVL 43 03 4 Display stored spring angle SPRG 38 00 5 Display entered wall corner angle CRNR 60 00 When
45. Solve Dimensional Math Problems Conversions Between Feet Inch Fractions Decimal Feet Decimal Inches and Yards Imperial Metric Conversions Problems Involving All Common Fractions 1 2 to 1 64 Area Volume Calculations Board Feet Lumber Calculations Circle Calculations Column Cone Area and Volume Compound Miter Cuts for Crown Moulding Material Estimations and Costs Polygons Rake Walls Right Angle Triangle Solutions Roofing Materials Stair Layout Risers Treads Studs Weight Volume Conversions Pro and Desktop Models NOT AVAILABLE ON TRIG MODEL 4080 Also Solve Block Bricks Concrete Footings and Drywall Instant Square up Perimeter Wall Area Room Area and Volume TABLE OF CONTENTS GETTING STARTED tiir roter irte cde 1 KEY DEEINITIONS 2 hotte an di dus caen es case 1 Basic Operation 1 Convert Key Unit Conversions and Second Functions 1 Memory and Storage 2 Recall Rel Key c eee re eerte 3 Dimensional Measurement Unit 3 Area and Volume Keys NOT AVAILABLE ON TRIG MODEL 4080 4 Weight Keys cute e oet docena uc re eee Dn ent 5 Construction Project Keys and 6 Block Brick Function NOT AVAILABLE ON TRIG MODEL 4080 6 Circular Arc Function Keys
46. TER Pno TRIG DESKTOP Angle Rise and Hypotenuse Known Find the angle that connects the rise and hypotenuse of a right triangle if the rise is 6 Feet and the hypotenuse is 10 Feet in length KEYSTROKE DISPLAY 1 Use trigonometric formula divide the rise by the hypotenuse 0 6 0 6 2 Solve for degrees minutes seconds angle cos 53 13 dms deg DMS 53 07 48 User s GUIDE 81 APPENDIX A DEFAULT SETTINGS After a Clear All E39 your calculator will return to the following settings STORED VALUES DEFAULT VALUE Desired Riser Height 7 1 2 INCH Desired Tread Width 10 INCH Floor Height 10 INCH On center Spacing 16 INCH Weight per Volume 1 5 Ton Per CU YD Block Area except Trig model 128 SQ INCH Block Length except Trig model 16 INCH Footing Area except Trig model 264 SQ INCH Spring Crown Angle 45 00 If you replace your batteries or perform a Full Reset press B hold down and press Gi your calculator will return to the following settings in addition to those listed above PREFERENCE SETTINGS Fractional Resolution Area Display Volume Display Stairway Headroom Rake Wall Arched Wall Jack Rafters Irregular Jack Spacing Exponent Meter Linear Display Decimal Degree Display Fractional Mode DEFAULT VALUE 1 16 Standard Standard 6 Feet 8 Inch Descending Outside Descending OC OC Off 0 000 0 00 Standard Depressing the Reset
47. To recall the stored setting press 7 Store Floor Thickness Height Floor Ht Stores a value other than the default desired floor thickness of 10 Inches e g 8 UD 8 stores an 8 inch desired floor thickness To recall the stored setting press 8 This is used along with stored head room height for calculating the length of the stair well opening Store Desired Tread Width Tread W Stores a value other than the default desired stair Tread Width of 10 Inches e g 2 9 stores a 12 inch desired stair Tread Width To recall the stored setting press 9 Set Headroom Height Sets the desired Headroom Height for calculation of the stairwell opening Default is 6 Feet 8 Inches Use the key to increase and the amp key to decrease the stored headroom height See Preference Settings instruc tions on page 86 User s GUIDE 15 Riser Limited Used for situations when the riser height is limited by local code When you press EZ the calculator will recalculate stair values so that the actual Riser Height will not exceed your stored desired Riser Height e g it will never exceed the stored desired Riser Height of 7 1 2 Inches if 7 1 2 Inches is the value stored using GE 7 To compensate for this limitation the calculator will add one to the number of risers Studs Function The Construction Master Pro also calculates the number of studs required for a wall using an entered length
48. VAILABLE ON TRIG MODEL 4080 The Blocks function helps you quickly estimate the quantity of blocks or bricks required for building walls walkways or other areas e Number of Blocks or Bricks Blocks Calculates the number of blocks or bricks based on an entered or calculated linear value an entered or calculated area an entered value in values entered in and solved area Uses a standard block mortar area of 128 Square Inches and a block length of 16 Inches This function can also be used for calculating the number of face or paver bricks by storing a brick size see below Stor 4 Store Block or Brick Size BIk Size Used to store 1 a block area other than the default block area of 128 Square Inches e g 2 0 2223 Gp 4 stores an area of 120 Square Inches and 2 a block length other than the default block length of 16 Inches e g 8 CD GE 4 stores a length of 18 inches These values are permanently stored until you change them or perform a Clear All 7 To recall the stored settings press 33 4 repeated presses of ED 4 toggle between block area and block length Note For Brick Estimates You may also enter a brick size using EB 4 For example when building with standard face bricks enter a brick size of 21 Square Inches 2 Gp E 4 or store a paver brick size of 32 Square Inches 3 2 c e ED 4 based on Modular U S brick
49. With an entered diameter or radius and number of sides of a polygon shaped figure D calculates the following Press Result Full Angle FULL Bi Sect or Half Angle HALF Side Length SIDE Perimeter of Polygon PER Area of Polygon AREA Radius RAD Redisplays Entered Number of Sides SIDE Solves radius for an entered diameter or redisplays the entered radius USER S GUIDE 9 Right Triangle Roof Framing Keys Right Triangle Pitch Unit Rise Unit Run Diagonal Rise Run Using the Pythagorean theorem the top row of keys on your Construction Master Pro will calculate instant solutions in dimensional format to right triangle problems particularly roof framing The Construction Master Pro s keys are labeled in easy to remember roofing terms The right triangle is calculated simply by entering two of four variables Rise Run Diagonal or Pitch Pitch Enters or calculates the Pitch slope of a roof or right triangle Pitch is the amount of rise over 12 Inches or one meter of run Pitch may be entered as a dimension 9 an angle or degrees 3 0 GZ a percentage percent grade 7 GZ a pitch ratio 0 7 CD Gz Once a Pitch in one of the above formats is entered consecutive presses of will convert to the remaining Pitch formats listed above e g Pitch in Inches will convert to Pitch Degrees Percent Grade an
50. a value less than 25 is entered as the wall corner angle the compund miter function assumes this is the number of sides of a polygon calculates the wall corner angle and displays it first before displaying the miter angle USER S GUIDE 45 CONCRETE PAVING Volume of Concrete for a Driveway Find the Cubic Yards of concrete required to pour a driveway with the following dimensions 36 Feet 3 Inches long by 11 Feet 6 Inches wide by 4 Inches deep If concrete costs 55 per Cubic Yard what is the total cost KEYSTROKE DISPLAY 1 Multiply the length times the width to find the area 0 3 6 CZ 3 Gp 36 rEET 3 INCH 0 6 2 11 FEET 6 INCH e 416 875 SQ FEET 2 Multiply times the depth to find the volume 4 5 146605 3 Multiply times the per Unit Cost to find the total cost of concrete 3 5 5 0 Cost 283 This answer will automatically display in Cubic Yards due to the multiplication of mixed units unless the preference setting for volume display has been changed from the default Standard Setting See Preference Settings on page 83 46 CONSTRUCTION MASTER Pho TRIG DESKTOP Concrete Columns Find the Cubic Yards of concrete required to pour five columns if each has a diameter of 3 Feet 4 1 2 Inches and a height of 11 Feet 6 Inches If the concrete weighs 1 75 Tons per Cubic Yard what is the total weight in Tons In Pounds In Kilograms C 11 6
51. al digits You may enter or calculate values up to 19 999 999 99 Each calculation is carried out internally to twelve digits Errors When an incorrect entry is made or the answer is beyond the range of the calculator it will display the word ERROR To clear an error condition you must hit the button once At this point you must determine what caused the error and re key the problem Error Codes DISPLAY ERROR TYPE OFLO Overflow too large MATH Error Divide by 0 DIM Error Dimension error ENT Error Invalid entry error TRIG Error Trig error for example tan of 1 foot None Attempt to calculate stairs without enter ing rise and run Auto Range If an overflow is created because of an input and calculation with small units that are out of the standard seven digit range of the display the answer will be automatically expressed in the next larger units instead of showing ERROR e g 20 000 000 mm is shown as 20 000 m Also applies to inches feet and yards Note If Exponential Notation is activated through the Preference Setting the value will be shown in scientific notation e g 20 million mm 2 00000 mm AUTO SHUT OFF Your calculator is designed to shut itself off after about 8 12 minutes of non use UserR s GUIDE 91 BATTERIES Construction Master Pro v3 1 4065 and Construction Master Pro Trig v3 1 4080 Two LR 44 batteries Construction Master Pro Desktop v3 1 44
52. al Feet or Inches Square Conversions Convert 14 Square Feet to other Square dimensions KEYSTROKE DISPLAY 0 0 4 14 SQ FEET uz 2016 SQ INCH 1 555556 sa YD c 1 300643 sa M cm 13006 43 sa cM Cubic Conversions Convert 14 Cubic Feet to other Cubic dimensions KEYSTROKE DISPLAY 0 1 4 c 14 cU FEET uz 24192 CU INCH 0 518519 cu vp e 0 396436 cu M USER S GUIDE 23 PERFORMING BASIC MATH WITH DIMENSIONS Adding Dimensions KEYSTROKE DISPLAY Add 11 Inches to 2 Feet 1 Inch 0 0 inch o 2 Feet inch 3 FEET O INCH Add 5 Feet 7 1 2 Inches to 18 Feet 8 Inches 5 CM 2 20 o A 2 63 0 8 8 C2 24 FEET 3 1 2 INCH Subtracting Dimensions KEYSTROKE DISPLAY Subtract 3 Feet from 11 Feet 7 1 2 Inches 0 0 B 7 a 10 26 3 8 FEET 7 1 2 INCH Subtract 32 Inches from 81 Inches 6070263 2 L3 CS 49 INCH Multiplying Dimensions KEYSTROKE DISPLAY Multiply 5 Feet 3 Inches by 11 Feet 6 1 2 Inches 5 C22 3 o e o 2210 026 60 59375 SQ FEET Multiply 2 Feet 7 Inches by 10 7 aooe 25 FEET 10 INCH Dividing Dimensions KEYSTROKE DISPLAY Divide 30 Feet 4 Inches by 7 Inches 3 0 4 7 te 52 Divide 20 Feet 3 Inches by 9 2 0 Foot 3 022696 2 FEET 3 INCH 24 CONSTRUCTION MASTER Pno TRIG DESKTOP Percentage Calculations The percent key is used to find a given percent of a number or to perform add on discount or division p
53. all or review stored values e g ED to recall a previously entered pitch value It is also used in reviewing stored settings or in Paperless Tape and Memory operation see below a Paperless Tape Tape Accesses the paperless tape mode see Paperless Tape page 27 which keeps track of your past 20 entries Useful for checking strings of numbers Clear M Displays and clears M Recall M Displays value stored in M 0 3 Recall 1 through 3 Recalls the value stored in M1 M2 or M3 Dimensional Measurement Unit Keys The following keys are used for entering units of measure with ease and accuracy Yds Yards Enters or converts to Yards Feet Enters or converts to Feet Also used with the and keys for entering Feet Inch values e g 6 9 223 1 2 Note Repeated presses of ZB after toggle between Feet Inches and Decimal Feet e g Ga 9 Duc 6 791667 Feet press again to return to Feet Inch Fractions Inch Inches Enters or converts to Inches Also used with the key for entering fractional Inch values e g 9 02 10 2 Note Repeated presses of toggle between Fractional and Decimal Inches e g 9 euo 9 5 Inch press again to return to Fractional Inches Fraction Bar Used to enter fractions Fractions may be entered as proper 1 2 1 8 1 16 or improper 3 2 9 8 If the denominator bottom is n
54. alley and Jack rafter lengths excluding wood thickness etc User s GUIDE 11 When calculating Regular and Irregular Jack rafter lengths you will see the letters JK Regular pitch side or IJ Irregular pitch side and the corresponding jack number to the left of your calculator dis play This will help you keep track of the descending sizes and which side the corresponding rafter is based on Hip Valley Rafter Finds the Regular or Irregular Hip Valley rafter length Regular Hip Valley Length After right triangle rafter values are entered or calculated e g Pitch Rise Run pressing will calcu late the length of the Regular Hip Valley rafter Irregular Hip Valley Length If an irregular pitch is entered see next definition pressing will calculate the rregular Hip Valley rafter length An Irregular or non standard roof has two different Pitches Slopes Subsequent presses of the key will also display plumb level and cheek cut angle values in degrees Irregular Pitch Ir Pitch Enters the irregular or secondary pitch value used to calculate lengths of the irregular hip valley and jack rafters You may enter the irregular pitch as a dimension 9 G amp D an angle 3 0 a percentage 5 Note An entered irregular pitch can be recalled by pressing ED c Jack Rafters Finds the descending Jack rafter sizes for regular pitched roofs based on the stored On center spacing
55. and a run of 20 Feet 4 Inches KEYSTROKE DISPLAY 0 3 0 PTCH 30 00 2 0 4 G2 CT RUN 20 FEET 4 INCH c RISE 11 FEET 8 7 8 INCH um DIAG 23 FEET 5 3 4 INCH USER S GUIDE 59 Sheathing Cut You have framed an equal pitch roof and need to apply the roof sheathing Find the distance from the corner of the sheathing so that you can finish the run at the Hip rafter and cut the material The pitch is 6 Inches and you are using 4 foot by 8 foot plywood with the 8 foot side along the plate KEYSTROKE DISPLAY 1 Enter Pitch 0 6 CD PTCH 6 INCH 2 Enter width of plywood 4 Uu DIAG 4 FEET 0 INCH 3 Find length of sheathing c RUN 3 FEET 6 15 16 INCH Regular Hip Valley and Jack Rafters You re working with a 7 12 Pitch and half your total span is 8 Feet 5 Inches 1 Find point to point length and cut angles for the common rafter 2 Find the length and cut angles of the adjoining Hip or Valley and 8 Find the Incremental Jack Adjustment Regular Jack Rafter lengths and cut angles Jack Rafters at 16 Inch On center spacing KEYSTROKE DISPLAY 1 Find Common rafter length and Plumb and Level cuts 0 8 Ga 5 RUN 8 FEET 5 INCH 7 inch PTCH 7 INCH Diag DIAG 9 FEET 8 15 16 INCH Diag PLMB 30 26 LEVL 59 74 2 Find Hip Valley rafter length and cut angles H V 12 Feet 10 1 2 INCH PLMB 22 42 LEVL 67 58 CHK1 45 00 Cont d 60 CONSTRUCTION MASTER PRo TRIG
56. and stored On center spacing value 5 Studs Calculates the number of studs for an entered or displayed linear value Based on the stored On center spacing 16 inches is the default Trigonometric Keys TRIG 4080 AND DESKTOP 44080 MODELS ONLY Hypotenuse Opposite Side Tangent Opposite Adjacent Opposite Hypotenuse Adjacent Side Sine Cosine Adjacent Hypotenuse 16 CONSTRUCTION MASTER Pno TRIG DESKTOP The Trig model 4080 and Desktop 44080 calculators have standard trigonometric keys in addition to right triangle rafter keys e g Rise Run Diagonal for advanced right triangle mathematics The Sine Cosine and Tangent of an angle are defined in relation to the sides of a right triangle Using the key with the trigonometric function displays the inverse Arcsine Arccosine and Arctangent These are used to find the angle for the Sine Cosine or Tangent value entered Sine Function Calculates the Sine of an entered degree or non dimensioned value Arcsine sin Calculates the angle for the entered or calculated Sine value Cosine Function Calculates the Cosine of a degree or non dimensioned value Arccosine cos Calculates the angle for the entered or calculated Cosine value Tangent Function Calculates the Tangent of a degree or non dimensioned value Arctangent tan Calculates the angle for the entered or calculated Tange
57. angle of incline As a final step calcu late the run R HT 7 7 16 INCH RSRS 16 R 0 INCH T WD 10 INCH TRDS 15 T 0 INCH OPEN 10 FEET 1 INCH STRG 15 FEET 6 15 16 INCH INCL 36 64 RUN 12 FEET 6 INCH E RISE 9 FEET 11 INCH Continuous presses of GEM will also recall stored desired riser height tread head room and floor thickness values 72 CONSTRUCTION MASTER Pno TRIG DESKTOP Notes on Changing Stored Stair Variables To Change Desired Riser Height If you wish to use a Desired Riser Height of other than 7 1 2 Inches the calculator s default simply enter a new value For example to enter 8 Inches enter ED 7 Press ED 7 to review your new entry This value will be permanently stored until you change it To Change Desired Tread Width If you wish to use a Desired Tread Width of other than 10 Inches the calculator s default simply enter a new value For example to enter 10 1 2 Inches enter CD C22 1 2 EB 9 Press GD 9 to review your new entry This value will be permanently stored until you change it To Change Desired Floor Thickness If you wish to use a Desired Floor Thickness of other than 10 Inches the calculator s default simply enter a new value For example to enter 12 Inches enter CD 2 022 ED 8 Press EI 8 to review your new entry This value will be permanently stored until you change it To Change Desired Headroom If you wish to use a Desired Headroom other t
58. ay need to reset the Preferences back to IRJK OC OC if you do not normally figure jacks in this manner See Preference Settings on page 83 KEYSTROKE DISPLAY 1 Review Preferences until you find Jack Descend 0 ED Prefs FRAC 0 1 16 iNcH If not at 1 16 press amp 3 until 1 16 is displayed Gra AREA Std Stor VOL Std Gra HDRM 6 FEET 8 INCH Stor RAKE dESCEnd Stor AW outSidE Stor JACK dESCEnd Set Preference to Ascend plus sign JACK ASCEnd 2 Set Preference to Jacks Mate Gra IRJK OC OC plus sign IRJK JAC JAC 3 Find common rafter length 7 uz PTCH 7 INCH 4 c RUN 4 FEET 0 INCH Diag DIAG 4 FEET 7 9 16 INCH Cont d 64 CONSTRUCTION MASTER TRIG DESKTOP Cont d KEYSTROKE DISPLAY 4 Enter Irregular Pitch and find Irregular Hip Valley rafter length and cut angles inch Ir Pitch IPCH 8 INCH IH V 5 FEET 9 11 16 INCH PLMB 23 70 LEVL 66 30 CHK1 41 19 CHK2 48 81 5 an isplay the o c and find the irregular incremental jack adjustment Irregular Jack lengths and cut angles Ir Jack IJOC 16 INCH INCR 1 FEET 4 13 16 INCH IJ 1 1 FEET 4 13 16 INCH IJ 2 2 FEET 9 5 8 INCH IJ 3 4 FEET 2 1 2 INCH PLMB 33 69 LEVL 56 31 CHK1 41 19 6 Find the o c regular incremental jack adjustment and Regular Jack lengths and cut angles 20 EJ E 59 19 15 1815 5 8 8 G3 LX tow baw GJ JKOC 14 iNcH Jack INCR
59. ce in rafter length from one rafter to the next 56 CONSTRUCTION MASTER TRIG DESKTOP Degree of Pitch If the degree of pitch is 30 45 what is the percent Grade Slope and Pitch in Inches KEYSTROKE DISPLAY 0 3 0 4 5 Gz PTCH 30 45 GRD 58 78702 SLP 0 58787 PTCH 7 1 16 INCH Note To convert Pitch in Inches Simply enter the Pitch in Inches first e g Gz then continuously press the key to calculate the pitch conversions as above Percent Grade If the Percent Grade is 47 25 what is the Slope Pitch in Inches and Degree of Pitch KEYSTROKE DISPLAY 0 4 7 2 5 Gz GRD 47 25 SLP 0 4725 PTCH 5 11 16 INCH Pitch PTCH 25 29 For entering Percent Grade you need to label the value with the percent key Pitch Ratio or Slope If the Pitch Ratio is 0 65 what is the Pitch in Inches Degree of Pitch and Percent Grade KEYSTROKE DISPLAY 0 6 5 17 GD Slope SLP 0 65 Pitch PTCH 7 13 16 INCH PTCH 33 02 Pitch GRD 65 For entering Pitch Ratio you must press the key first USER S GUIDE 57 Common Rafter Length If a roof has a 7 12 Pitch and a span of 14 Feet 4 Inches what is the point to point length of the Common rafter excluding the over hang or ridge adjustment What are the Plumb and Level cuts lt 14 4 Span gt 7 2 Run Note Run is half the Span KEYSTROKE DISPLAY 1 Find diagonal
60. d Pitch Ratio Slope Note An entered vs calculated pitch is a permanent entry This means that it will remain stored even after you turn the calculator off To change the Pitch simply enter a new Pitch value In contrast a calculated Pitch value is not permanently stored This means that the calculator will return to the Pitch value you last entered when you clear the calculator or press twice 10 CONSTRUCTION MASTER Pro TRIG DESKTOP Pitch Ratio or Slope Slope Enters the Pitch as a ratio or Slope of a roof or right triangle For example 0 58 slope is entered as 5 Gz Rise Enters or calculates the Rise or vertical leg height of a right triangle Run Enters or calculates the Run or horizontal leg base of a right triangle Diagonal Enters or calculates the diagonal leg hypotenuse of a right triangle Typical applications are squaring up slabs or finding common rafter lengths Additional presses of the EZ key will also display plumb and level cut angles in degrees Note The Common rafter calculation is the point to point length and does not include the overhang or ridge adjustment Hip Valley and Jack Rafter Keys Regular Hip Valley Rafter __ Jack E Irregular Side Ir Jack E Jack Rafters l 16 On center Spacing The Construction Master Pro uses the Rise Run Diagonal Pitch and On center spacing values to calculate Regular and Irregular Hip V
61. d Riser Height stored Tread Width stored Headroom Height and Floor Thickness and entered Rise and Run values to calculate and display the following Press Result Actual Riser Height R HT Number of Risers RSRS Riser Overage Underage R Tread Width T WD Number of Treads TRDS Tread Overage Underage T Stairwell Opening OPEN Stringer Length STRG Incline Angle INCL Run of Treads RUN Floor to Floor Rise RISE Cont d 14 CONSTRUCTION MAsTER Pho TRIG DESKTOP Cont d Stor 7 Stor 8 ca 9 cD E Ee Er E Press Result 12 Stored Desired Riser Height R HT 13 Stored Desired Tread Width T WD EIS 14 Stored Headroom HDRM EIE 15 Stored Floor Thickness FLOR Note Default values are 7 1 2 Inches for Desired Riser Height and 10 Inches for Desired Tread Width 10 Inches for Floor Thickness and 6 Feet 8 Inches for Headroom Height Note It is not possible for the calculator to include the nose over hang measurement Thus you need to adjust for this measure ment per local codes If the inclination angle exceeds the stored riser height and Tread Width ratio by 10 the yield symbol will appear indicating a steep incline Store Desired Riser Height Riser Ht Stores a value other than the default desired stair riser height of 7 1 2 Inches e g 8 UD E 7 stores 8 inch desired stair riser height
62. d wall lengths are measured inside of the arc see diagram on page 43 Arched Segment Walls Arched Windows No Base Find the radius of an arched window with a chord length of 8 Feet 1 Inch and a rise of 2 Feet and 10 1 2 Inches Then find the arc angle arc length and segment area of the window Then find the outside arched segment wall lengths in order to frame the window P di lid 2 10 1 2 Rise 8 1 Run KEYSTROKE DISPLAY 1 Enter chord length 0 8 23 p amp p RUN 8 FEET 1 INCH 2 Enter rise 2 e 0 C22 0 0 2 RISE 2 FEET 10 1 2 INCH 3 Find Arc angle Arc ARC 141 70 4 Find Arc length Arc ARC 10 FEET 7 INCH 5 Display chord length Arc CORD 8 FEET 1 INCH 6 Find segment area Arc SEG 16 96327 sa INCH 7 Find pie slice area Arc PIE 22 63527 sa INCH Cont d User s GUIDE 41 Cont d KEYSTROKE DISPLAY 8 Display entered rise segment height RISE 2 FEET 10 1 2 INCH 9 Display On center spacing Arc OC 16 INCH 10 Find the arched segment wall lengths Arc AW 1 FEET 2 9 16 INCH Arc AW 2 FEET 11 3 16 INCH Arc AW 2 FEET 9 1 8 INCH Arched Segment Walls Arched Windows With Base Find the radius of an arched window with a chord length of 8 Feet 1 Inch a rise of 2 Feet and 10 1 2 Inches and a base height of 2 Feet Then find the arc angle arc length and segment area of the window Then find the outside arched segment wall lengths in order to
63. e stairway Riser Overage or Underage The riser overage or underage is the difference between the floor to floor rise and the total height of all of the risers Many times the riser height does not divide evenly into the floor to floor rise and a small fraction of an inch is left over A positive remainder is an overage while a negative remainder is an underage Tread Width The width of each tread is measured from the front of one riser to the front of the next riser The width of each tread does NOT include the nosing or overhang of the tread The nosing or overhang of a tread is the rounded front of the tread that projects beyond the face of the riser Number of Treads The number of treads is one less than the number of risers Tread Overage or Underage The tread overage or underage is the difference between the run or horizontal space that a stairway must fit into and the total width of the treads Similar to the riser overage underage many times the total width of the treads does not divide evenly into the run or horizontal space for the stairway and a small fraction of an inch is left over A positive remainder is an over age a negative remainder is an underage Stringers Also called carriages stair horses or stair jacks Stringers are the diagonal members that support the treads and risers Angle of Incline The angle of incline of the stairway is determined by the rise and run of each stair The angle of incline should no
64. ength of 40 Feet KEYSTROKE DISPLAY 1 Enter length 0 4 0 40 FEET 2 Find the number of 4 x 8 sheets 4 x 9 sheets and 4 x 12 sheets required D Drywall 4X8 10 C 4X9 10 C 4X12 10 c LNTH 40 FEET 0 INCH It is the same amount for all three of the sheet sizes because the linear calculation is based on the width of the sheets e g 4 Feet Note The order in which the different sheet size answers appear may differ from that of the guide The order is based on the last displayed sheet size when previously calculated 52 CONSTRUCTION MASTER TRIG DESKTOP GRADE SLOPE Back Fill on a Slope Percent of Grade Known You ve built 55 linear Feet of a 3 foot high retaining wall that is 3 Feet from the base of a 65 grade You need to pour back fill within 12 Inches of the top of the wall for a 2 Foot depth How many Cubic Yards of fill should you have delivered KEYSTROKE DISPLAY 1 Find volume for A 0 5 5 55 FEET 3 3 FEET e 9 M 330 cu M 2 Find run of B 6 5 GRD 65 2 Rise RISE 2 Feet 0 iNcH Run RUN 3 Feet 0 15 16 iNcH 3 Find volume of triangle B 5 5 55 Feet M C RUN 3 Feet 0 15 16 iNcH 2 e 338 4615 cu FEET 62 M 169 2308 cu FEET M 4 Find total volume M 499 2308 cu FEET 18 49003 cu vp USER S GUIDE 53 RIGHT TRIANGLE AND ROOF FRAMING EXAMPLES Ridge Rafter Valley Rafter
65. ercentage calculations You may also perform percentage calculations with dimensional units Feet Inch etc in any format linear Square or Cubic Examples KEYSTROKE DISPLAY Find 1896 of 500 Feet 5 0 0 Feet 9 1 8 E 90 FEET 0 INCH Add 10 to 137 Square Feet CD 9 2 Feet I Feet C3 0 0 150 7 so FEET Subtract 2096 from 552 Feet 6 Inches 5 5 2 e 6 26028 00 442 FEET 0 INCH Divide 350 Cubic Yards by 80 3 5 0 oa vos 8 0 437 5 CU YD MEMORY OPERATION Your calculator has two types of Memory operations 1 a standard cumulative semi permanent Memory QE and 2 three storage registers M1 M2 and used to permanent ly store single non cumulative values Memory commands are listed below FUNCTION KEYSTROKES Ca Add value to M Subtract value from M Clear M c Display and Clear Recall stored value 1 2 3 Store single value in M1 1 Store single value in 2 2 Store single value in M3 ED 3 Clear register M1 0 1 Cont d User s GUIDE 25 Cont d FUNCTION KEYSTROKES Clear register M2 0 2 Clear register M3 0 EB 3 Recall stored value in M1 Recall stored value M2 2 Recall stored value in M3 3 3 Basic Cumulative Memory M Example Store 100 into M add 200 and then subtract 50 Display the total average and total count Clear the Memory KEYSTROKE DISPLAY 1 0 0
66. ering Entering Pitch Length and Width Find the roof area and number of roofing squares number of bundles and 4 x 8 sheets required for a 10 inch Pitch roof covering a floor area of 14 Feet by 11 Feet Also calculate the plan area KEYSTROKE DISPLAY 1 Enter Pitch and floor area 0 CD C2 Gz PTCH 10 INCH CD 4 e LNTH 14 FEET 0 INCH EDRED C WDTH 11 FEET O INCH 2 Find roof area 8 77 Roof Find number of roofing squares Find number of bundles Display bundle size area Find number of 4 x 8 sheets Display stored Pitch Find floor plan area ROOF 200 4631 sa FEET SQRS 2 00 BNDL 6 01 B SZ 33 33 so FEET 4X8 6 26 PTCH 10 INCH PLAN 154 SQ FEET If you know the area and do not need to calculate it once have entered the Pitch enter the area and label it as Square Feet then press E For example if the plan floor area is 100 Square Feet enter 0 0 27 um For Trig Model 4080 Users As this model does not have and keys you must calculate area the stan dard way e g L x W or entering 154 Square Feet then press um 68 CONSTRUCTION MASTER TRIG DESKTOP Roof Covering Entering Rise Run No Pitch and Area Find the roof covering Pitch and plan area if the Rise is 10 feet and Run is 15 Feet The length of the floor area is 50 Feet and the width is 30 Feet KEYSTROKE DISPLAY 1 Enter Rise Run length and width 0 C
67. extends from the corner of two wall plates to the ridge or King rafter at angle other than 90 The Valley rafter is an internal angle of two planes Jack Rafters Rafters that connect the Hip or Valley rafter to the wall plate Irregular Hip Valley Jacks Jack rafters found in dual pitch or Irregular roofs User s GUIDE 55 Regular Roof A standard roof where the Hips and or Valleys run at 45 and have the same pitch slope on both sides of the Hip and or Valley Irregular Roof A non standard roof where the Hips and or Valleys bisect two different pitches slopes or have skewed wings or irregu lar Jacks Rake Wall A gable end wall that follows the pitch slope of a roof Angle A z Angle B Level Plumb B Top Plate Plumb Vertical Cut The angle of cut from the edge of the board that allows the rafter to mate on the vertical side of the ridge rafter Level Horizontal Cut The angle of cut from the edge of the board that allows the rafter to seat flat on the wall plate Cheek Side Cut s The angle to cut from the SIDE of the Jack rafter to match up against the Hip or Valley rafter usually made by tilting the blade from 90 Jack rafters typically have one Cheek cut If there is only one pitch no irregular pitch the angle will be 45 If there are two pitches each side will have a different Cheek cut for the Jack rafter and the angles will total 90 Incremental Adjustment The differen
68. eys 3 Dimensions Linear Entering 18 Dimensions Square Cubic Entering 18 Dimensions Adding 24 Dimensions Dividing 24 Dimensions Multiplying 24 Dimensions Subtracting 24 Drywall 52 Drywall Function Not Available on Trig Model 4080 9 Drywall Sheets Number of For a Given Area 52 Drywall Sheets Number of For a Given Length 52 Entering Dimensions 18 Error Codes 91 Examples 29 Footing Function 9 Grade Slope 53 Hip Valley and Jack Rafter Keys 11 Hip Valley Rafter 12 Irregular Pitch 12 Irregular Side Jacks 13 Irregular Hip Valley and Jack Rafters 62 64 Jack Rafters 12 Jack Rafters Using Other Than 16 Inch 61 Key definitions 1 Lumber Estimation 38 Memory and Storage Functions 2 Memory Operation 25 Multi Function Example 32 Multi Function Example 31 Paperless Tape Operation 27 Percentage Calculations 25 Pitch Ratio 57 Polygon Example 49 Polygon Function 9 Preference Settings Appendix B 83 Preferences How to Set 86 Rake Wall Function 13 Rake Wall No Base 66 Rake Wall With Base 67 Recall EJ Key 3 Regular Hip Valley and Jack Rafters 60 Reset 92 Right Triangle and Roof Framing 54 Right Triangle Roof Framing Keys 10 Rise 59 Rise and Diagonal 59 Roof Covering Entering Pitch Length and Width 68 Roof Covering Entering Rise Run No Pitch and Area 69 Roof Framing Definitions 55 Roof Materials Covering Function 14
69. h category press the amp or keys to toggle between individual selections Press to exit and set your Preference Note Press to advance and press amp to back up Pressing the key continuously in this mode will cycle through all of the Preference Settings You may change these settings at any time by repeating the above and setting in a new preference To reset preferences back to factory default settings turn your calcu lator off hold down the key and turn the calculator back on For example if you wish to display all your dimensional area answers in square meters press E Area Sid then the amp key until AREA 0 so is displayed Simply exit this mode by pressing or any key except 3 or and all your future area answers will be displayed in square meters Accessing Preference Settings KEYSTROKE DISPLAY To Set Fractional Resolution Prefs 1st press of BEM FRAC 0 1 16 iNcH plus sign FRAC 0 1 32 INCH FRAC 0 1 64 iNcH FRAC 0 1 2 iNcH FRAC 0 1 4 iNcH FRAC 0 1 8 iNcH repeats options FRAC 0 1 16 INCH To Set Area Answer Format 2nd press of GEM AREA Std plus sign AREA 0 sa FEET AREA 0 sa AREA 0 sa repeats options AREA Std Cont d 86 CONSTRUCTION MASTER Pno TRIG DESKTOP Cont d KEYSTROKE DISPLAY To Set Volume Answer Format 3rd press of GE VOL Std plus sign VOL 0 cu vp VOL cu FEET VOL 0 cum repeats options
70. han 6 Feet 8 Inches the calculator s default simply select a new value via the Preference Mode and use the or keys to increase decrease by one inch See examples below This value will be permanently stored until you change it KEYSTROKE DISPLAY 1 Select Headroom via Preference Mode 0 Een Ea E73 ED HDRM 6 FEET 8 INCH 2 Decrease Headroom Height by 2 Inches 22 HDRM 6 FEET 6 INCH 3 Then increase Headroom Height by 4 Inches 6 FEET 10 INCH 4 Return Headroom Height to default of 6 Feet 8 Inches 22 HDRM 6 FEET 8 INCH USER S GUIDE 73 Stairs Given Only the Run You re building a stairway with a total run of 20 Feet Your desired riser height is 7 1 2 Inches and desired tread width is 10 Inches The desired headroom is 6 Feet 8 Inches and floor thickness 10 Inches Find all stair values then calculate the rise KEYSTROKE DISPLAY 1 Enter run 0 2 0 c RUN 20 FEET 0 INCH 2 Find riser height number of risers riser underage overage tread width number of treads tread overage underage stairwell opening stringer length and angle of incline As a final step calculate the rise R HT 7 1 2 INCH RSRS 25 R 0 INCH T WD 10 INCH TRDS 24 T 0 INCH OPEN 10 FEET 0 INCH STRG 25 FEET 0 INCH INCL 36 87 RUN 20 FEET O INCH RISE 15 FEET 7 1 2 INCH 74 CONSTRUCTION MASTER Pno TRIG DESKTOP Stairs Given Rise and Run You need to build a stairway with a floor to floor heigh
71. he math operator x 96 in the upper left corner of the display Note If amp has been used in the middle of a string SUB for Subtotal will display in the upper left If amp was the last operation performed the display will show TTL Total as the last entry To exit this mode press to exit and maintain the last entry on the display When exiting the last entry or TTL will be displayed allow ing you to continue using the last tape value for another operation if desired Note The Paperless Tape is cleared when is pressed twice upon a new calculation new equation string is started or when the calculator is shut off Example KEYSTROKE DISPLAY 1 Enter a string of numbers 4 4 FEET O INCH 5 9 FEET O INCH 6 15 FEET O INCH 22 FEET 0 INCH 2 Access the tape function Re f TTL 22 FEET 0 INCH 3 Scroll from first value to total 01 4 FEET 0 INCH 02 5 FEET O INCH 03 6 FEET 0 INCH 04 7 FEET O INCH TTL 22 FEET 0 INCH Cont d USER S GUIDE 27 Cont d KEYSTROKE DISPLAY 4 Scroll last two values 04 7 FEET 0 INCH 2 03 6 FEET 0 INCH 5 Exit tape function and continue e TTL 22 FEET 0 INCH 22 FEET O INCH 2 24 FEET 0 INCH 28 CONSTRUCTION MASTER Pro TRIG DESKTOP EXAMPLES USING THE CONSTRUCTION MASTER PRO The Construction Master Pro calculators have keys and functions labeled in common building terms Just follow the examples
72. ircle area 0 3 C 6 uz DIA 3 FEET 6 INCH AREA 9 621128 SQ FEET 2 Enter height and find volume 5 c HGHT 5 FEET 0 INCH ca CONE 16 03521 CU FEET To access Cone volume you must press the key three times after For Trig Model 4080 Users As this model does not have a key you must enter the height using the key USER S GUIDE 33 WEIGHT VOLUME CONVERSIONS Weight Conversions Convert 2 500 Pounds to Kilograms Tons and Metric Tons KEYSTROKE DISPLAY 1 Enter Pounds 0 2 5 0 0 4 Ibs 2500 LB 2 Convert to Kilograms Tons and Metric Tons 1 kg 1133 981 xc 6 tons 1 25 Ton 3 met tons 1 133981 MET Ton Weight per Volume Volume Conversions Convert 5 Cubic Yards of concrete to Pounds Tons and Kilograms if concrete weighs 1 5 Tons per Cubic Yard KEYSTROKE DISPLAY 1 Store Weight per Volume 0 CD 5 GB o wt vol 1 5 Ton Per CU YD 2 Enter concrete volume 5 5 CU YD 3 Convert to Pounds Tons and Kilograms 4 Ibs 15000 LB 6 tons 7 5 Ton CD kg 6803 886 If calculator does not display Tons per Cubic Yard keep pressing the 0 key until the desired format is displayed e g Ton Per CU YD LB Per CU YD LB Per CU FEET MET Ton Per CU M or kG Per CU M 34 CONSTRUCTION MAsTER PRo TRIG DESKTOP BLOCKS BRICKS NOT AVAILABLE ON TRIG MODEL 4080 Number of Blocks Based on Entered Length and Height You are building an L shaped re
73. lue as Cubic KEYSTROKE DISPLAY 0 1 0 0 100 cu FEET Note Feet Inches format cannot be used to enter Square or Cubic values 18 CONSTRUCTION MAsTER Pho TRIG DESKTOP Examples of Entering Square and Cubic Dimensions YARDS Square Yards e g 5 will display 5 sa Cubic Yards e g 5 will display 5 cu FEET Square Feet e g 8 will display 5 sa FEET Cubic Feet e g 5 will display 5 cu FEET INCHES c CD Square Inches e g 5 will display 5 sa INCH CED C23 CD Cubic Inches e g 5 GED GED GED will display 5 cu incu METERS O O Square Meters e g 8 will display 5 sa O Cubic Meters e g O will display 5 cu CENTIMETERS Square Centimeters e g 5 will display 5 sa Cubic Centimeters e g 5 will display 5 cu cm MILLIMETERS 9 9 Square Millimeters e g 5 9 9 will display 5 sa 9 9 9 Cubic Millimeters e g 5 9 9 9 will display 5 cu Mw USER S GUIDE 19 SETTING FRACTIONAL RESOLUTION The Construction Master Pro is set to display fractional answers in 16ths of an Inch All examples in this User s Guide are based on 1 16 However you may select the fractional resolution to be dis played in other formats e g 1 64 1 32 etc The method for permanently changing fractional resolution is shown below
74. mp JBBBBBBBEBEBBEB R HT 7 1 8 INCH RSRS 17 R 1 8 INCH T WD 11 9 16 INCH TRDS 16 T 0 INCH OPEN 12 FEET 2 1 16 INCH STRG 18 FEET 1 5 16 INCH INCL 31 64 RUN 15 FEET 5 INCH RISE 10 FEET 1 INCH R HT 7 1 2 INCH T WD 10 INCH HDRM 6 FEET 8 INCH FLOR 10 INCH 76 CONSTRUCTION MASTER Pno TRIG DESKTOP Baluster Spacing You are going to install a handrail at the top of a balcony Your total span is 156 Inches and you would like the space between the balus ters to be about 4 Inches If each baluster is 1 1 2 Inches wide what is the exact spacing between each baluster KEYSTROKE DISPLAY 1 Estimate number of balusters in span 0 1 5 6 156 INCH 5 0 a 2 6 28 36364 28 balusters Desired spacing plus baluster width 4 plus 1 1 2 2 Find total space occupied by the balusters by multiplying the width of each baluster by the rounded number of balusters found above OD 2 1 1 2 INCH 2 8 42 INCH 3 Find total space between all balusters 1 5 6 C3 156 INCH 4 2 2026 114 INCH 4 Find actual baluster spacing by dividing total space between all balusters by the number of spaces between the balusters number of balusters plus one equals 29 QD CU 4 114 INCH 2989 3 15 16 INCH USER S GUIDE 77 STUDS Find the number of 16 inch On center studs needed for a wall with a length of 18 Feet 7 1 2 Inches KEYSTROKE DISPLAY 1 Enter leng
75. n be displayed in either descending from longest to shortest or ascending from shortest to the longest order depending upon your preference setting see Preference Settings on page 83 If a dimensional value is entered before pressing C3 this value will be taken as the Rake Wall base size and auto matically added to the various rafter lengths Store On center Spacing Used to store a value other than the default of 16 Inches On center e g 5 stores an 18 inch On center for Rake Wall stud calculations Press E 5 to review the stored value USER S GUIDE 13 Roof Materials Covering Function The Construction Master Pro s Roof function provides a quick calcu lation of roof area number of squares and bundles and number of 4 x 8 sheets required for roof coverage Diag Roof Given an entered Pitch or Rise and Run and plan area or Length and Width calculates the following Press Result Roof Area ROOF Number of Roof Squares SQRS Number of Roof Bundles BNDL Roof Bundle Size B SZ Number of 4 x 8 Sheets 4X8 Pitch PTCH Plan Area PLAN Roof bundle size is 33 33 Square Feet NOOR Stair Key The Construction Master Pro easily calculates stair layout solutions With entered values for floor to floor rise and or run it will calculate Riser Tread Stringer and Incline Angle values simply by pressing the key Stair A multi function key that uses a store
76. nce KEYSTROKE DISPLAY 1 Find wall area 0 3 0 e LNTH 30 FEET 0 INCH 4 5 C WDTH 45 FEET 0 INCH 2 Find the perimeter Cu PER 150 FEET 0 INCH 3 Find the number of blocks for the displayed perimeter and add 3 waste allowance e Blocks BLKS 112 50 3 115 875 116 Blocks Number of Blocks Based on Entered Length Calculate the number of blocks required for a length of 20 Feet KEYSTROKE DISPLAY 1 Enter length then calculate number of blocks 0 2 0 20 FEET 72 Blocks BLKS 15 2 Display the stored block length B LN 16 INCH Note The calculator will calculate the number of blocks based on the entered length and the stored block size length If the stored block length is not 16 Inches then enter the following 1 C23 E 4 Bik Size B LN 16 INCH 36 CONSTRUCTION MAsTER PRo TRIG DESKTOP Number of Face Bricks How many face bricks 21 Square Inch size will you need to purchase to cover a 40 Foot by 8 Foot wall if you include a 396 waste allowance Use the Blocks function for calculating bricks KEYSTROKE DISPLAY 1 Enter and store brick area into Block Size storage key 0 2 C0 GED GED GEM 4 Bik Size B AR 21 SQ INCH 2 Enter length and height of wall 4 0 LNTH 40 FEET 0 INCH HGHT 8 FEET 0 INCH 3 Find the number of bricks and add a 3 waste allowance Blocks BLKS 2194 286 3 2260 114 2261 Bricks 4 Reset block area to default value
77. nknown Wall Corner Angle first then proceed with the above angle calculations E Store Spring Angle Spring Angle Stores a value other than the default spring crown angle of 45 e g 3 8 EB stores 38 spring angle This value is permanently stored until you change it or perform a Clear All To recall the stored setting press C3 Gia 8 CONSTRUCTION MAsTER Pno TRIG DESKTOP Drywall Function NOT AVAILABLE ON TRIG MODEL 4080 Drywall Sheets Drywall Calculates the number of 4 x 8 4 x 9 and 4 x 12 sheets for an entered or calculated area Footing Function NOT AVAILABLE ON TRIG MODEL 4080 The Footing function helps you quickly estimate the volume of concrete required for concrete footings LConv cano Footing Calculates total quantity of concrete required for concrete footings based on an entered wall length and footing size Size based on the default footing size of 264 Square Inches industry standard Store Footing Area Ftg Area Used to store a value other than the default footing size of 264 Square Inches e g CD 2 8 C GE 6 stores a footing size of 128 Square Inches This value is permanently stored until you change it or perform a Clear All M To recall the stored setting press EJ 6 Polygon Function The Polygon function is handy for calculating multi sided shapes such as found in concrete applications Polygon
78. nt value Cannot use on dimensioned values UserR s GUIDE 17 ENTERING DIMENSIONS Entering Linear Dimensions When entering Feet Inch Fraction values enter dimensions from largest to smallest e g Feet before Inches and Inches before Fractions Enter Fractions by entering the numerator top pressing fraction bar key and then the denominator bottom Note If a denominator is not entered the fractional setting value is used Examples of Entering Linear Dimensions DIMENSION 2 X KEYSTROKES Clear calculator 5 Feet 1 1 2 Inch 5 2210 2 Clear calculator 5 Yards 5 Clear calculator 17 5 Meters 1 7 5 Entering Square Cubic Dimensions The Construction Master Pro lets you easily enter Square and Cubic values Simply press a dimensional unit key two times to label a number as a Square value or three times to label a Cubic value Note If you pass the desired dimensional format keep on pressing the dimensional unit key until the desired result is displayed again Enter Square and Cubic dimensions in the following order 1 Enter numerical value e g 1 0 0 2 Press desired unit key e g GEB to label value as linear KEYSTROKE DISPLAY 0 1 0 0 100 FEET 8 Second press of unit key e g GJ labels value as Square KEYSTROKE DISPLAY 0 1 0 0 Feet 100 so FEET 4 Third press of unit key e g labels va
79. ot entered the calculator s fractional resolution setting is auto matically used e g entering 1 5 amp or will display 15 16 based on the default fractional resolu tion setting of 16ths USER S GUIDE 3 to N g Meters Enters or converts to Meters Centimeters cm Enters or converts to Centimeters Millimeters mm Enters or converts to Millimeters Acres Acre Enters or converts a square value to Acres Board Feet Bd Ft Enters or converts cubic values to Board Feet One Board Foot is equal to 144 Cubic Inches Area and Volume Keys NOT AVAILABLE ON TRIG MODEL 4080 Length Enters a length for calculation of area or volume Width A multi function key used to enter a width for calculation of area or volume if a length and height are also entered Consecutive presses of this key display or calculate Press Result Displays Entered Width WDTH Area AREA Square up SQUP Perimeter PER Redisplays Entered Length LNTH Redisplays Entered Width WDTH Height A multi function key used to enter a height for calculation of volume if a length and width are also entered Consecutive presses of this key display or calculate Press Result Displays Entered Height HGHT Volume VOL Wall Area WALL Total Room Area ROOM Redisplays Entered Length LNTH Redisplays Entered Width WDTH 4 C
80. oting Function Height Jack Rafters Now also displays the average and the count upon repeated key presses of QE Arc and Circle values can now be solved by entering any two of the following values Arc Length Angle Diameter Radius Chord Length and Segment Rise Now calculates the segment walls outside the arc including a base if needed or cal culates the arched segment walls inside the arc depending upon preference setting Now solves for blocks based on values stored in 7 only or in 1 and AED Now calculates the Miter and Bevel angles using the spring crown angle this is the angle of the crown molding to the wall previ ous version 3 0 used the angle of the crown molding to the ceiling Column Cone Height is now entered using the key instead of the key excludes Model 4080 Default footing area is now 264 Square Inches instead of 1 8 Square Feet Displays Volume Wall Area and Room Area only excludes display of Area Square Up and Perimeter which are displayed in the Width function Now displays the incremental adjustment which is the difference in rafter length from one rafter to the next 90 CONSTRUCTION MASTER Pho TRIG DESKTOP APPENDIX E ACCURACY ERRORS AUTO SHUT OFF BATTERIES RESET ACCURACY ERRORS Accuracy Display Capacity Your calculator has a twelve digit display made up of eight digits normal display and four fraction
81. ower off Arithmetic operation keys eo Four function x percent key See page 25 for examples 0 9 and Keys used for entering digits 100 DESKTOP ONLY Enters 00 to save keystrokes e g D 99 to enter 100 e Backspace Key Used to delete entries one key stroke at a time unlike the function which deletes the entire entry Convert Key Unit Conversions and Second Functions The key is used to convert between measurement units or to access the second functions listed below Clear All Clears all values including Memory Resets all permanent entries to default values except Preference Settings which are retained Note Use only when necessary as it resets all stored values to factory defaults See page 82 for a listing of default values x Squares the value in the display For example to square the value 10 enter 1 0 then ge Square Root Function Used to find the square root of a non dimensional or area value e g 1 0 0 E 10 x10 Allows entry of an exponent For example D 4 is 8 times 10 to the 14th power 1 x Finds the reciprocal of a number e g 0 125 USER S GUIDE 1 amp Conv 0 Gu Er Change Sign Toggles the sign of the dis played value to positive or negative Pi x Constant 3 141593 Degrees Minutes Seconds dms4 deg Converts be
82. r spacing to default 16 inch CD 6 GED E3 5 o c OC 16 INCH User s GuiDE 61 Irregular Hip Valley and Jack Rafters Descending with On Center Spacing Maintained You re working with a 7 12 Pitch and half your overall span is 4 Feet The irregular Pitch is 8 12 and 16 inch On center spacing is main tained on both sides Complete the following steps 1 Find the length of the common rafter 2 Reset calculator to 16 inch On center spacing 3 Enter the Irregular Pitch find the length of the adjoining Irregular Hip or Valley and the cut angles 4 Find the incremental jack adjustment and the jack lengths on the Irregular Pitch side 16 inch On center spacing 5 Find the cut angles 6 Find the incremental jack adjustment and the jack lengths on the Regular Pitch side 16 inch On center spacing 7 Find the cut angles KEYSTROKE DISPLAY 1 Find Common rafter length 0 7 inch PTCH 7 INCH 4 RUN 4 FEET 0 INCH Diag DIAG 4 FEET 7 9 16 INCH 2 Enter On center spacing CD 6 GD GE 5 o c OC 16 INCH 3 Find Irregular Hip Valley rafter length and cut angles inch Ir Pitch IPCH 8 INCH IH V 5 FEET 9 11 16 INCH PLMB 23 70 LEVL 66 30 CHK1 41 19 CHK2 48 81 Cont d 62 CONSTRUCTION MASTER PRo TRIG DESKTOP Cont d KEYSTROKE DISPLAY 4 Find irregular incremental jack adjustment and Irregular Jack lengths Ir Jack 16 INCH INCR 1 FEET 4 13 16
83. ss of ED Std plus sign COnSt repeats options Std Note Press at any time to exit the Preference Mode 88 CONSTRUCTION MASTER Pno TRIG DESKTOP APPENDIX C CARE INSTRUCTIONS Please follow the guidelines listed in this section for proper care and operation of your calculator Not following the instructions listed below may result in damage not covered by your warranty Refer to the Repair and Return section on page 95 for more details Do not expose calculator to temperatures outside the operating temperature range of 32 F 104 F 0 40 Do not expose calculator to high moisture such as submersion in water heavy rain etc USER S GUIDE 89 APPENDIX D IMPORTANT NOTES FOR OWNERS OF PREVIOUS CONSTRUCTION MASTERS The Construction Master Pro Workbook and Study Guide has been written with keystroke examples illustrations and solutions using Construction Master Pro v3 1 If you are using a Construction Master Pro v3 0 it is important to understand the changes or enhancements to the v 3 1 edition The version number you are using appears next to the model number 4065 on the left side of the face of the calculator You can also refer to your User s Guide for more information on any of the following functions NEW ENHANCED FUNCTION DESCRIPTION Accumulative Memory Arc and Circle Calculations Arched Segment Walls Blocks Function Compound Miter Column Cone Function Fo
84. t be confused with the pitch of the stairway The pitch of a stairway is the angle based on the floor to floor rise and the horizontal run of the stairway The angle of incline is based on the actual riser height and the actual tread width of the stair Stairwell Opening The length of the opening at the top of the stairs The computation is based on the headroom height the desired spacing between the stairs and upper floor ceiling and thickness of the upper floor where the opening is located User s GUIDE 71 Stairs Given Only Floor to Floor Rise You re building a stairway with a total rise of 9 Feet 11 Inches Your desired riser height is 7 1 2 Inches and desired tread width is 10 Inches The desired headroom is 6 Feet 8 Inches and floor thick ness 10 Inches Find all stair values then calculate the run Headroom and floor thickness are required to calculate the length of the stairwell opening KEYSTROKE DISPLAY 1 Enter known Rise 0 OOO es RISE 9 FEET 11 INCH 2 Recall stored desired stair riser height 7 R HT 7 1 2 INCH 3 Recall stored desired stair tread width 9 T WD 10 INCH 4 Recall stored desired floor thickness cI FLOR 10 INCH 5 Display stored Headroom via Preference Setting Mode co Eca Ea ED HDRM 6 FEET 8 INCH 6 Find riser height number of risers riser underage overage tread width number of treads tread overage underage length of stairwell opening stringer length and
85. t of 10 Feet 1 Inch a run of 15 Feet 5 Inches and a nominal desired riser height of 7 1 2 Inches default Calculate all stair values KEYSTROKE DISPLAY 1 Enter Rise and Run 0 OO Ga uu RISE 10 FEET 1 INCH 1 5 Ga 5 Ce RUN 15 FEET 5 INCH 2 Find Stair values Stair Stair Stair Stair Stair Stair Stair Stair Stair Stair Stair Stair Stair Stair Stair R HT 7 9 16 INCH RSRS 16 R 0 INCH T WD 12 5 16 INCH TRDS 15 T 0 5 16 INCH OPEN 12 FEET 2 1 2 INCH STRG 18 FEET 0 3 4 INCH INCL 31 56 RUN 15 FEET 5 INCH RISE 10 FEET 1 INCH R HT 7 1 2 INCH T WD 10 INCH HDRM 6 FEET 8 INCH FLOR 10 INCH A in the display means that the calculated riser height exceeds the stored desired riser height User s GUIDE 75 Stairs Given Hise and Run Using Riser Limited Function for Code Restrictions Your local code prohibits risers greater than 7 1 2 Inches You need to build a stairway with a floor to floor height of 10 Feet 1 Inch a run of 15 Feet 5 Inches Calculate all stair values Use the Riser Limited function second function of the key to calculate a riser height that does not exceed the stored Desired Riser Height of 7 1 2 Inches KEYSTROKE DISPLAY 1 Enter Rise and Run 0 D 0 1 5 5 RISE 10 FEET 1 INCH RUN 15 FEET 5 INCH 2 Find stair values using Riser Limited Riser Limited Stair ammmmmmmmmmmnr
86. taining wall out of standard 8 inch x 16 inch size blocks Note this is the default block size of 128 Square Inches One side of the retaining wall is 22 Feet long and the other side is 15 Feet 8 Inches long The wall is to be 4 Feet high How many blocks are required to build this wall Add a 596 waste allowance Note The calculated area from an entered length and height GED will be used for calculating blocks if these values exist KEYSTROKE DISPLAY 1 Find total wall length 0 4 Blk Size B AR 128 SQ INCH 2 2 Z0 0 00 5 218 tne 37 FEET 8 INCH ec LNTH 37 8 INCH 2 Enter wall height as height 4 HGHT 4 FEET 0 INCH 3 Find the number of blocks and add 5 waste allowance Blocks BLKS 169 5 5 177 975 178 Blocks lf GD Blocks does not result in 128 Square Inches then enter the following CD 2 8 GED a ED 4 Bik Size B AR 128 SQ INCH OR 8 0 C3 128 sa INCH E 4 Size B AR 128 SQ INCH Number of Blocks Based on Entered Area Find the number of blocks required for an area measuring 300 Square Feet Then add a 3 waste allowance KEYSTROKES PLAY 0 3 0 0 20 300 SQ FEET D Blocks BLKS 337 5 3 347 625 348 Blocks USER S GUIDE 35 Number of Blocks Based on Calculated Perimeter Calculate the wall s perimeter if the length is 30 Feet and width is 45 Feet Then find the number of blocks required Add a 396 waste allowa
87. th and convert to Studs 0 1 86 2 7 C2 0 2 18 FEET 7 1 2 INCH 5 Studs STUD 15 studs The length is divided by the On center spacing in this case 16 Inches default set ting Press 5 to review the stored On center value If you need to enter a new On center for example 18 Inches enter C1 8 GED B 5 BASIC D M S AND TRIGONOMETRY EXAMPLES Converting Degrees Minutes Seconds Convert 23 42 39 to decimal degrees KEYSTROKE DISPLAY 0 2 3 4 2 3 9 DMS 23 42 39 dms deg 23 71 Convert 44 29 to degrees minutes seconds format KEYSTROKE DISPLAY 0 4 4 2 9 dms 4 deg DMS 44 17 24 Note Improperly formatted entries will be redisplayed in the correct convention after any operator key is pressed For example 30 89 entered will be corrected and dis played at 31 29 0 or 31 48333 Time Calculations Using D M S Add 7 Hours 45 Minutes 33 Seconds to 11 Hours 16 Minutes 20 Seconds KEYSTROKE DISPLAY 0 4 8 3 3 DMS 7 45 33 62 00 1 9 1 6 9 2 0 DMS 19 01 53 78 CONSTRUCTION MASTER Pno TRIG DESKTOP TRIGONOMETRIC FUNCTIONS Trigonometric functions are available on the Construction Master Pro Trig and Construction Master Pro Desktop calculators The drawing and formulas below list basic trigonometric formulas for your reference 53 1301 36 8699 4
88. tion 51 DRYWALL NOT AVAILABLE ON TRIG MODEL 4080 52 Number of Drywall Sheets for a Given 52 Number of Drywall Sheets for a Given Length 52 GRADE SLOPE iunc ieu et obtuse inten 53 Back Fill on a Slope Percent of Grade Known 53 RIGHT TRIANGLE AND ROOF FRAMING EXAMPLES 54 Roof Framing Definitions 55 Degree of Pitch 57 Percent Grade desci i ie et ance ra en 57 Pitch Ratio or Slope 57 Common Rafter 58 Common Rafter Length Pitch Unknown 58 Angle and Diagonal 59 BAY rere ire ercer oe E E CM uM EE 59 Ree and Diagornal hte t ee AE 59 Sheathing Cut sessi 60 Regular Hip Valley and Jack Rafters 60 Jack Rafters Using Other Than 16 Inch On Center SDACIIO iv a pde M edat e OUS 61 Irregular Hip Valley and Jack Rafters Descending with On center Spacing Maintained esses 62 Irregular Hip Valley and Jack Rafters Ascending with Jacks Mating at Hip Valley seen 64 Rake Wall No Base
89. tween D M S and decimal degree formats Total Cost Cost Calculates total material cost given a unit dimension and an entered Per Unit Cost Access Preference Settings Prefs Used to access various customizable settings such as dimensional answer formats see Preference Settings on page 83 Memory and Storage Functions Er 1 3 Cumulative Memory Whenever the key is pressed the displayed value will be added to the Memory Other memory functions FUNCTION KEYSTROKES Add to Memory Subtract from Memory Recall total in Memory Display Clear Memory cc Clear Memory cD Memory is semi permanent clearing only when you 1 turn off the calculator 2 press E3 CJ 3 press c 4 press Clear All When memory is recalled 29 EB consecutive presses of will display the calculated average and total count of the accumulated values Storage Registers M1 through M3 Stores the displayed value in non cumulative permanent Memory e g 1 0 E 1 Good for storing a single value for future reference 10 Note Non cumulative means it only accepts one value does not add or subtract and a second entered value will replace the first Permanent means the value is stored even after the calculator is shut off To delete a stored value enter a new value or perform a Clear All 2 CONSTRUCTION MASTER PRo TRIG DESKTOP Recall C Key The J key is used to rec

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