Calculated Industries 4065 Construction Master Pro v3.0 User Manual
Summary of 4065 Construction Master Pro v3.0
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C onstruction m aster ® p ro 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.
Page 2: Construction Master Pro III
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 iii series — 1. Construction master pro (#4065 v3.1) 2. Cons...
Page 3: 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 pro...
Page 4: Table of Contents
Getting started..........................................................................1 key definitions .........................................................................1 basic operation keys ..................................................................1 convert Ç key – unit conversi...
Page 5: Examples –
Cubic conversions .....................................................................23 performing basic math with dimensions .....................24 adding dimensions ....................................................................24 subtracting dimensions .......................................
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Number of board feet based on entered volume ....................38 circle and arc calculations............................................39 circumference and area of a circle...........................................39 arc length – degree and diameter known ...............................39 arc l...
Page 7: Appendix A –
Irregular hip/valley and jack rafters – descending, with on-center spacing maintained ...............................................62 irregular hip/valley and jack rafters – ascending, with jacks mating at hip/valley ......................................................64 rake-wall – no base .......
Page 8: Appendix F –
Reset ..........................................................................................92 appendix f – area/volume formulas ................................93 area formulas........................................................................93 surface area/volume formulas ..................
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U ser ’ s g uide — 1 key definitions basic operation keys o on/clear — turns power on. Pressing once clears the display. Pressing twice clears all temporary values. O off — turns all power off, clearing all non-permanent registers. For desktop model 44080, press Ç o to turn power off. + – x arithmet...
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2 — c onstruction m aster ® p ro / t rig / d esktop Ç – change sign (+/–) — toggles the sign of the dis- played value to positive or negative. Ç + pi ( π ) — constant = 3.141593 Ç • degrees:minutes:seconds (dms deg) — converts between d:m:s and decimal degree formats. Ç 0 total cost (cost) — calcula...
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U ser ’ s g uide — 3 recall ® key the ® key is used to recall or review stored values (e.G., ® p to recall a previously entered pitch value). It is also used in reviewing stored settings, or in paperless tape and memory operation (see below). ® = paperless tape (tape) — accesses the paperless tape m...
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4 — c onstruction m aster ® p ro / t rig / d esktop m meters — enters or converts to meters . Ç 7 centimeters (cm) — enters or converts to centimeters . Ç 9 millimeters (mm) — enters or converts to millimeters . Ç 2 acres (acre) — enters or converts (a square value) to acres . Ç 8 board feet (bd ft)...
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U ser ’ s g uide — 5 weight keys Ç 1 kilograms (kg) — enters or converts (a weight or vol- ume value) to kilograms . A dimensioned volume will convert using the stored weight per volume value. Ç 3 metric tons (met tons) — enters or converts (a weight or volume value) to metric tons . A dimen- sioned...
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6 — c onstruction m aster ® p ro / t rig / d esktop 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 available on trig model #4080) the bl...
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U ser ’ s g uide — 7 circular/arc function keys the circle key helps you quickly solve circular area, volume or arc problems. C circle — displays and calculates the following val- ues, given an entered circle diameter* or radius: • diameter (dia) • circle area (area) • circumference (circ) *to enter...
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8 — c onstruction m aster ® p ro / t rig / d esktop column/cone function the column and cone function helps you quickly estimate volume and surface area of columns or cones. Ç c column and cone (column/cone) — with an entered diameter and height, the first and second presses of c (following Ç ) will...
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U ser ’ s g uide — 9 drywall function ( not available on trig model #4080) Ç h 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 ...
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10 — c onstruction m aster ® p ro / t rig / d esktop right triangle/roof framing keys right triangle: 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...
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U ser ’ s g uide — 11 Ç p 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 8 Ç p . R rise — enters or calculates the rise or vertical leg (height) of a right triangle. R run —enters or calculates the run or h...
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12 — c onstruction m aster ® p ro / t rig / d esktop 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...
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U ser ’ s g uide — 13 (cont’d) 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 s...
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14 — c onstruction m aster ® p ro / t rig / d esktop 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. Ç d roof — given an entered pitch (or r...
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U ser ’ s g uide — 15 (cont’d) press result 12 stored (desired) riser height (r-ht ) 13 stored (desired) tread width (t-wd ) 14 stored headroom (hdrm ) 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 fo...
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16 — c onstruction m aster ® p ro / t rig / d esktop Ç s riser limited — used for situations when the riser height is limited by local code. When you press Ç s , the calculator will recalculate stair values so that the actual riser height will not exceed your stored desired riser height (e.G., it wi...
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U ser ’ s g uide — 17 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 side...
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18 — c onstruction m aster ® p ro / t rig / d esktop 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 / ...
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U ser ’ s g uide — 19 examples of entering square and cubic dimensions: yards y y — square yards (e.G., 5 y y will display 5 sq yd ). Y y y — cubic yards (e.G., 5 y y y will display 5 cu yd ). Feet f f — square feet (e.G., 5 f f will display 5 sq feet ). F f f — cubic feet (e.G., 5 f f f will displa...
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20 — c onstruction m aster ® p ro / t rig / d esktop 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 ...
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U ser ’ s g uide — 21 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 o o 0. 4 4 / 6 4 0-44/64 inch + 1 / 6 4 = 0-45/64 inch Ç 1 (1/16) 0-11/16 inch Ç 2 (1/2) 0-1/2 inch Ç 3 (1/32)...
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22 — c onstruction m aster ® p ro / t rig / d esktop conversions (linear, area, volume) linear conversions convert 14 feet to other dimensions: keystroke display o o 0. 1 4 f 14 feet Ç y 4.666667 yd Ç f 14 feet 0 inch Ç i 168 inch Ç m 4.267 m Ç 7 (cm) 426.72 cm Ç 9 (mm) 4267.2 mm note: when performi...
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U ser ’ s g uide — 23 converting fractional inches to decimal inches convert 8-1/8 inches to decimal inches. Then convert to decimal feet. Keystroke display o o 0. 8 i 1 / 8 8-1/8 inch Ç i 8.125 inch f 0.677083 feet i * 8.125 inch converting decimal inches to fractional inches convert 9.0625 inches ...
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24 — c onstruction m aster ® p ro / t rig / d esktop performing basic math with dimensions adding dimensions keystroke display add 11 inches to 2 feet 1 inch: 1 1 i + 2 f 1 i = 3 feet 0 inch add 5 feet 7-1/2 inches to 18 feet 8 inches: 5 f 7 i 1 / 2 + 1 8 f 8 i = 24 feet 3-1/2 inch subtracting dimen...
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U ser ’ s g uide — 25 percentage calculations the percent % key is used to find a given percent of a number or to perform add-on, discount or division percentage calculations. You may also perform percentage calculations with dimensional units (feet, inch, etc.), in any format (linear, square or cub...
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26 — c onstruction m aster ® p ro / t rig / d esktop (cont’d) function keystrokes clear register m2 0 ß 2 clear register m3 0 ß 3 recall stored value in m1 ® 1 recall stored value in m2 ® 2 recall stored value in m3 ® 3 basic cumulative memory (m+) example: store 100 into m+, add 200, and then subtr...
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U ser ’ s g uide — 27 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 ® = ...
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28 — c onstruction m aster ® p ro / t rig / d esktop (cont’d) keystroke display 4. Scroll last two values: – 04+ 7 feet 0 inch – 03+ 6 feet 0 inch 5. Exit tape function and continue: = ttl= 22 feet 0 inch + 22 feet 0 inch 2 f = 24 feet 0 inch.
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U ser ’ s g uide — 29 the construction master pro calculators have keys and functions labeled in common building terms. Just follow the examples and adapt the keystrokes to your specific application. Please note that some of the following examples will not apply to your specific calculator model. Fo...
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30 — c onstruction m aster ® p ro / t rig / d esktop 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: o o 0. 2 f 5 i 2 feet 5 inch 2. Find total width: x 3 = 7 feet 3 inch 3. Convert to decimal fe...
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U ser ’ s g uide — 31 area calculations square area (x 2 ) what is the area of a square room with sides measuring 7 feet 4 inches? Keystroke display o o 0. 7 f 4 i Ç % (x 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? ...
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32 — c onstruction m aster ® p ro / t rig / d esktop volume calculations rectangular containers (lxwxh) what is the volume of a rectangular container that measures 3 feet by 1 foot 9-5/8 inches by 2 feet 4 inches? Keystroke display 1. Find volume in cubic feet: o o 0. 3 f 3 feet x 1 f 9 i 5 / 8 1 fe...
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U ser ’ s g uide — 33 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: note: for a cylinder, use the column function. Keystroke display 1. Find circle area: o o 0. 2 f 4 i 2 feet 4 inch c c area 4.276057 sq feet 2. Enter heig...
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34 — c onstruction m aster ® p ro / t rig / d esktop weight/volume conversions weight conversions convert 2,500 pounds to kilograms, tons and metric tons: keystroke display 1. Enter pounds: o o 0. 2 5 0 0 Ç 4 (lbs) 2500 lb 2. Convert to kilograms, tons and metric tons: Ç 1 (kg) 1133.981 k g Ç 6 (ton...
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U ser ’ s g uide — 35 blocks/bricks ( not available on trig model #4080) number of blocks, based on entered length and height you are building an “l” shaped retaining 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 retai...
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36 — c onstruction m aster ® p ro / t rig / d esktop 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 3% waste allowance. Keystroke display 1. Find wall area: o o 0. 3 0 f l l...
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U ser ’ s g uide — 37 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 3% waste allowance? Use the blocks function for calculating bricks. Keystroke display 1. Enter and store brick area into block size...
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38 — c onstruction m aster ® p ro / t rig / d esktop 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 x 4 x 1 4 is 2 inches x 4 inches x 14 feet). You can a...
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U ser ’ s g uide — 39 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 o twice) after calculating right-trian...
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40 — c onstruction m aster ® p ro / t rig / d esktop (cont’d) keystroke display 4. Find the arc angle: a arc 142.15° 5. Find the arc length: a arc 4 feet 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 segm...
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U ser ’ s g uide — 41 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 arched wall lengths are measured inside of the arc (see diagram o...
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42 — c onstruction m aster ® p ro / t rig / d esktop (cont’d) keystroke display 8. Display entered rise (segment height): a rise 2 feet 10-1/2 inch 9. Display on-center spacing: a oc 16 inch 10. Find the arched segment wall lengths: a aw 1 0 feet 2-9/16 inch a aw 2 0 feet 11-3/16 inch a aw 3 2 feet ...
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(cont’d) keystroke display 5. Find arc length: a arc 10 feet 7 inch 6. Display chord length: a cord 8 feet 1 inch 7. Find segment area: a seg 16.96327 sq inch 8. Find pie slice area: a pie 22.63527 sq inch 9. Display entered rise (segment height): a rise 2 feet 10-1/2 inch 10. Display on-center spac...
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44 — c onstruction m aster ® p ro / t rig / d esktop (cont’d) keystroke display 2. Enter chord length and segment height (rise): o o 0. 1 5 f r run 15 feet 0 inch 5 f r rise 5 feet 0 inch 3. Find arc angle: a arc 134.76º 4. Find arc length: a arc 19 feet 1-5/16 inch 5. Display entered chord length: ...
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U ser ’ s g uide — 45 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. Keystroke display 1. Store the spring angle: o o 0. 3 8 ß (s...
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46 — c onstruction m aster ® p ro / t rig / d esktop 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, wh...
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U ser ’ s g uide — 47 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? Keystroke...
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48 — c onstruction m aster ® p ro / t rig / d esktop 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...
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U ser ’ s g uide — 49 (cont’d) keystroke display 4. Find total area and clear memory: ® ® m+ 616.5 sq feet 5. Find total cubic yards: x 4 i 1 / 2 = 8.5625 cu yd 6. Find total cost: x 4 5 Ç 0 (cost) $385. 31 polygon, finding angles based on entered radius and number of sides you’re going to pour a po...
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50 — c onstruction m aster ® p ro / t rig / d esktop 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. Cal...
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U ser ’ s g uide — 51 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. Keystroke display 1. Enter sides as rise/run: o o 0. 2 3 f 8 i r rise 23 feet 8 inch 4 5 f 6 i r run 4...
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52 — c onstruction m aster ® p ro / t rig / d esktop 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: o o 0. 1 5 0 f f 150 sq feet 2. Find the...
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U ser ’ s g uide — 53 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 fi...
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54 — c onstruction m aster ® p ro / t rig / d esktop right triangle and roof framing examples.
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U ser ’ s g uide — 55 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 t...
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56 — c onstruction m aster ® p ro / t rig / d esktop 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 ...
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U ser ’ s g uide — 57 degree of pitch if the degree of pitch is 30.45°, what is the percent grade, slope and pitch in inches? Keystroke display o o 0. 3 0 • 4 5 p ptch 30.45° p %grd 58.78702 p slp 0.58787 p ptch 7-1/16 inch note: to convert pitch in inches: simply enter the pitch in inches first (e....
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58 — c onstruction m aster ® p ro / t rig / d esktop 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? Note: run is half the span. K...
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U ser ’ s g uide — 59 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: o o 0. 9 f r rise 9 feet 0 inch 1 2 f r run 12 feet 0 inch 2. Solve for diagonal/hypotenuse an...
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60 — c onstruction m aster ® p ro / t rig / d esktop 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 usi...
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U ser ’ s g uide — 61 (cont’d) keystroke display 3. Find regular incremental jack adjustment and regular jack rafter lengths and cut angles: j jkoc 16 inch * j incr 1 feet 6-1/2 inch j jk 1 8 feet 2-3/8 inch j jk 2 6 feet 7-7/8 inch j jk 3 5 feet 1-3/8 inch j jk 4 3 feet 6-13/16 inch j jk 5 2 feet 0...
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62 — c onstruction m aster ® p ro / t rig / d esktop 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. ...
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U ser ’ s g uide — 63 (cont’d) keystroke display 4. Find irregular incremental jack adjustment and irregular jack lengths: Ç j (ir/jack) ijoc 16 inch j incr 1 feet 4-13/16 inch j * ij 1 2 feet 9-5/8 inch j ij 2 1 feet 4-13/16 inch j ij 3 0 feet 0 inch *it is not necessary to continue pressing Ç when...
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64 — c onstruction m aster ® p ro / t rig / d esktop 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-...
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U ser ’ s g uide — 65 (cont’d) keystroke display 4. Enter irregular pitch and find irregular hip/valley rafter length and cut angles: 8 i Ç h (ir/pitch) ipch 8 inch h ih/v 5 feet 9-11/16 inch h plmb 23.70° h levl 66.30° h chk1 41.19° h chk2 48.81° 5. Display the o.C. And find the irregular increment...
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66 — c onstruction m aster ® p ro / t rig / d esktop 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. Note: the wall has no base. Keystroke display 1. Enter rise and run and display o.C. Spacing: o o 0. ...
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U ser ’ s g uide — 67 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. Keystroke display 1. Enter rise, run, and o.C. Spacing: o o 0. 4 f r rise 4 feet 0 inch 8 f r run 8 fe...
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68 — c onstruction m aster ® p ro / t rig / d esktop 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 covering — entering pitc...
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U ser ’ s g uide — 69 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: o o 0. 1 0 f r...
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70 — c onstruction m aster ® p ro / t rig / d esktop stair layout examples 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 a...
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U ser ’ s g uide — 71 number of risers: the number of risers includes both the first and the last riser of the 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...
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72 — c onstruction m aster ® p ro / t rig / d esktop 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...
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U ser ’ s g uide — 73 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 8 i ß 7 . Press ® 7 to review your new entr...
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74 — c onstruction m aster ® p ro / t rig / d esktop 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 sta...
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U ser ’ s g uide — 75 stairs — given rise and run you need to build a stairway with a floor-to-floor height 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: o o 0. 1 0 f 1 ...
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76 — c onstruction m aster ® p ro / t rig / d esktop stairs — given rise 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. C...
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U ser ’ s g uide — 77 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? Keystro...
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78 — c onstruction m aster ® p ro / t rig / d esktop 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 length and convert to studs*. O o 0. 1 8 f 7 i 1 / 2 18 feet 7-1/2 inch Ç 5 (studs) stud 15. (studs) *the length i...
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U ser ’ s g uide — 79 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: given side a and angle a, find: side c a ÷ a ...
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80 — c onstruction m aster ® p ro / t rig / d esktop 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 c...
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U ser ’ s g uide — 81 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): o o 0. 6 f ÷ 1 0 f = 0....
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82 — c onstruction m aster ® p ro / t rig / d esktop after a clear all ( Ç x ), 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 t on p e...
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U ser ’ s g uide — 83 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 o , hold down x , and press o ), your calc...
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84 — c onstruction m aster ® p ro / t rig / d esktop (cont’d) preference options 3) volume display format – *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. Ans...
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U ser ’ s g uide — 85 (cont’d) preference options 8) irregular jack rafters – *oc-oc (on-center spacing maintained o-c or mate 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) 9) exponent of...
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86 — c onstruction m aster ® p ro / t rig / d esktop how to set preferences the following sections detail preference setting options for the construction master pro calculators. Enter the preference mode by pressing Ç ß (prefs) . Access each category by pressing the ß key until you reach the desired...
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U ser ’ s g uide — 87 (cont’d) keystroke display to set “volume” answer format: ß (3rd press of ß ) vol std. + (plus sign) vol 0. Cu yd + vol 0. Cu feet + vol 0. Cu m + (repeats options) vol std. To increase or decrease stairwell “headroom” from default of 6’8”: ß (4th press of ß ) hdrm 6 feet 8 inc...
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88 — c onstruction m aster ® p ro / t rig / d esktop (cont’d) keystroke display to set “meter” linear decimal format: ß (10th press of ß ) metr 0.000 m + (plus sign) metr float m + (repeats options) metr 0.000 m to set “number of decimal places for degree displays”: ß (11th press of ß ) deg 0.00° + ...
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U ser ’ s g uide — 89 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...
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90 — c onstruction m aster ® p ro / t rig / d esktop 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 change...
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U ser ’ s g uide — 91 accuracy/errors accuracy/display capacity — your calculator has a twelve-digit display made up of eight digits (normal display) and four fractional digits. You may enter or calculate values up to 19,999,999.99. Each calculation is carried out internally to twelve digits. Errors...
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92 — c onstruction m aster ® p ro / t rig / d esktop 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 (#44080) one 3-volt lithium cr-2032 battery. Replacing the battery(ies) should your calculat...
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U ser ’ s g uide — 93 area formulas appendix f — area/volume formulas.
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94 — c onstruction m aster ® p ro / t rig / d esktop surface area/volume formulas.
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U ser ’ s g uide — 95 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. 2. If your product won't turn o...
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96 — c onstruction m aster ® p ro / t rig / d esktop 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 consumer purchase in the u.S. If a defect exists during the w...
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U ser ’ s g uide — 97 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, mathematica...
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98 — c onstruction m aster ® p ro / t rig / d esktop 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 calculated industries by construction master ...
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U ser ’ s g uide — 99 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 o...
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100 — c onstruction m aster ® p ro / t rig / d esktop 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 m...
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U ser ’ s g uide — 101 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” f...
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Designed in the united states of america printed in china 3/06 ug4065e-f.