CONSTRUCTION MASTER® IV For Today's Construction Professional User’s Guide
10 — Construction Master IV [Jack] — Jack Rafter Key Finds the jack rafter sizes – from largest to smallest – for both regular and irregular pitched
User's Guide — 11 Stair & Circle Keys [Stair] — Stair Key A multi-function key that enters a desired riser height and uses the rise and run
12 — Construction Master IV Additional [Conv] Key Functions When used in conjunction with the following keys, the [Conv] key gives access to these
User's Guide — 13 Fractional Settings Setting Fractional Accuracy When your calculator is in a default condition (battery change or full reset)
14 — Construction Master IV Entering Dimensions Linear Dimensions When entering feet-inch values, enter dimensions from largest to smallest — feet b
User's Guide — 15 Linear Conversions Convert 14 feet to other dimensions: Keystroke Display 14 [Feet] . . . [Conv] [Yds] 4.666667 YD [Con
16 — Construction Master IV Cubic Conversions Convert 14 cubic feet to other cubic dimensions: Keystroke Display 14 [Cu] [Feet] . . . [Conv] [Inch]
User's Guide — 17 Adding Dimensions Add 11 inches to 2 feet 1 inch: 11 [Inch] [+] 2 [Feet] 1 [Inch] [=] *36 IN Subtracting Dimensions Subtract
18 — Construction Master IV Percentage Calculations The Percent [%] key can be used for finding a given percent of a number or for working add-on, d
User's Guide — 19 Memory Operation Whenever the [M+] key is pressed, the displayed value will be added to the Memory. Other memory functions:
2 — Construction Master IV Table of Contents The Construction Master® IV...3 GETTING STARTED...4 Key Definitions/Fu
20 — Construction Master IV Paperless Tape The Paperless Tape allows the user to display and review the last 20 entries of a calculation. [Rcl] [=]
User's Guide — 21 Previewing Paperless Tape Keystroke Display 1. Enter a string of numbers: 4 [Feet] [+] 4 FT 0 IN 5 [Feet] [+] 9 FT 0
22 — Construction Master IV EXAMPLES Linear Calculations Cutting Boards How many 2 feet 2 inch pieces can be made from fifteen 10-foot boards? Keys
User's Guide — 23 Masonry — Estimating Bricks How many standard bricks (3-3/4 inch by 8 inch) are required for a 36.5 feet by 8 feet wall? Keys
24 — Construction Master IV Area Calculations Area of a Rectangle What is the area of a room measuring 12 feet 6 inches by 15 feet 8 inches? Keystro
User's Guide — 25 Area — Floor Covering You have an apartment with two rooms of carpet that need to be replaced. The room dimensions are as fo
26 — Construction Master IV Roof Covering — No. of Shingles You’re going to use 12 inch wide by 36-inch long asphalt (strip) shingles with 5-inch w
User's Guide — 27 Volume Calculations Rectangular Containers What is the volume of a container 3 feet by 1 foot 9-5/8 inches by 2 feet 4 inches
28 — Construction Master IV (Cont’d) Keystroke Display [Conv] [Yds] 5.146605 CU YD 2. Multiply by Cost [x] 55 [Conv] [•] $ 283.06 Per Concrete Co
User's Guide — 29 Complex Concrete Volume You’re going to pour an odd-shaped patio 4-1/2 inches deep with the di-mensions shown below. First, c
User's Guide — 3 THE CONSTRUCTION MASTER® IV Designed for today’s construction pro-fessional, the Construction Master® IV is so simple, even t
30 — Construction Master IV (Cont’d) Keystroke Display [On/C] [On/C] 0. 1. Find Area of Part A 38 [Feet] 2 [Inch] [–] 4 [Feet] 2 [Inch] [=] 34 F
User's Guide — 31 Volume/Weight Calculations Concrete Footing Find the total volume* of concrete re-quired to pour five 24 inch by 12 inch foot
32 — Construction Master IV Board Feet/ Lumber Calculations Board Feet and lumber problems can easily be solved with the Construction Master IV’s bu
User's Guide — 33 Calculations The top row of keys provide you with built-in solutions to right triangles. The solutions are available in any o
34 — Construction Master IV Squaring a Concrete Slab Assume you want to “square-up” the forms for a concrete foundation meas-uring 45 feet 6 inches
User's Guide — 35 Area for Roofing Materials You’re ordering roofing materials for a roof with a 5/12 Pitch, an overall span of 27 feet and a l
36 — Construction Master IV Common Rafter Length — (Pitch Known) The roof you are working on has a 7/12 Pitch, with a span of 23 feet 6 inches. What
User's Guide — 37 Finding Rise — (Pitch and Run Known) Though not commonly asked for, you can compute the rise or run of a right angle just as
38 — Construction Master IV Raked Wall – Stud Sizes Find each stud size in a raked wall with a peak of 15 feet 5 inches, and a length of 30 feet 7 i
User's Guide — 39 Hip/Valley & Jack Rafters Regular (45°) Hip/Valley & Jack Rafters You’re working with a 7/12 Pitch, and half your to
4 — Construction Master IV GETTING STARTED Key Definitions/Functions Basic Function Keys [+] [–] [x] [÷] [=] Arithmetic operation keys. [%] Four-f
40 — Construction Master IV Jack Rafters — (with other than 16 inch on-center spacing) You’re working with a roof having a 7/12 pitch and a run of 3
User's Guide — 41 Irregular (non-45°) Hip/Valley & Jack Rafters You’re working with a 7/12 pitch and half your overall span is 15 feet 7
42 — Construction Master IV (Cont’d) 4. Find Regular Jack Lengths 16 [Inch] [Jack] OC 16 IN [Jack] JK1 16 FT 3-5/16 IN [Jack] JK2 14 FT 6-
User's Guide — 43 Stair Problems (Risers/Treads) The Construction Master IV easily computes the various values pertaining to stair building. G
44 — Construction Master IV The desired stair riser height (default = 7-1/2) inches can be permanently re-vised by entering the new height and press
User's Guide — 45 (7-1/2 Inch Desired Riser Height) You need to build a stairway having a floor-to-floor height of 28 feet 5-1/2 inches, a run
46 — Construction Master IV Circle Problems Circumference and Area Find the circumference and area of a circle having a diameter of 10 inches. Keyst
User's Guide — 47 APPENDIX A Battery & Auto Shut-Off Your calculator is powered by a single 3-Volt Lithium CR-2032 battery. This should l
48 — Construction Master IV APPENDIX B Area Formulas wlRectangleArea = lwbaTriangleArea = ab12SquareArea = aaa2rCircleCircumference = 2πrArea
User's Guide — 49 Surface Area & Volume Formulas wlRectangleSurface area = 2hw + 2hl + 2lwVolume = l x w x hhSphereSurface area = 4πrV
User's Guide — 5 [Conv] [] — x2 Function Finds the square of a linear or non-dimensional value. [M+] — Memory Key Adds the displayed value to M
50 — Construction Master IV REPAIR AND RETURN Warranty, Repair and Return Information Return Guidelines: 1. Please read the Warranty in this User
User's Guide — 51 WARRANTY Warranty Repair Service – U.S.A. Calculated Industries, Inc. ("CI") warrants this product against defe
52 — Construction Master IV Non-Warranty Repair Service – U.S.A. Non-warranty repair covers service beyond the warranty period or service requeste
User's Guide — 53 Disclaimer CI MAKES NO WARRANTY OR REPRESENTA-TION, EITHER EXPRESS OR IMPLIED, WITH RESPECT TO THE PRODUCT’S QUALITY, PER-FO
Software copyrighted and licensed to Calculated Industries by Construction Master Technologies, LLC, 2003 Construction Master IV User’s Guide Copyrig
6 — Construction Master IV Dimension Keys [Weight] — Weight Key Enters or converts (a volume value) to tons, pounds, metric tons or kilo-grams. Repe
User's Guide — 7 [Inch] — Inch Key Enters or converts to inches. Entry can be whole or decimal numbers. Also used with the [/] key for enter-in
8 — Construction Master IV Right Triangle/Rafter Keys [Pitch] This key is used to enter or calculate the pitch (slope) of a roof (or right tri-angl
User's Guide — 9 [Conv] [Diag] — Rake Walls This function finds the decreasing stud sizes in a raked wall based on computed or entered values f
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