CONSTRUCTION M- ASTER PRO ® ADVANCED CONSTRUCTION MATH CALCULATOR Model 4065 v3.
CONSTRUCTION MASTER PRO V3.
TABLE OF CONTENTS NOTE TO METRIC USERS .................... 1 KEY DEFINITIONS ................................. 4 Basic Function Keys ............................ 4 Unit Keys ............................................. 5 Length, Width and Height Keys .......... 5 Circle/Arc Keys .................................... 5 Construction Project Keys ................... 6 Right Triangle/Roof Framing Keys ...... 7 Stair Layout Key .................................. 9 Customizable Stair Settings ..............
Concrete Footings ............................. 20 Concrete Volume for Driveway.......... 20 Converting D:M:S .............................. 21 Polygon – Brick Paving ..................... 21 Squaring-Up a Foundation ................ 22 Studs ................................................. 23 RIGHT ANGLE/FRAMING .................... 24 Pitch – Converting Roof Angle .......... 24 Converting Slope ............................... 24 Common Rafter Length .....................
NOTE TO METRIC USERS The factory-set Stored Values and Preferences for the Construction Master Pro are set in imperial values. You can easily change these values to the metric values you use in your work. These values will be stored, even after the unit has been powered off, until you do a Clear All (Ç x), a Full Reset, or change the batteries. Below are the metric default values used in the examples in this guide, along with instructions on how to change them from the imperial default values.
(Cont'd) STORED VALUES Weight per Volume Block Area Block Length Footing Area DEFAULT VALUE 1500 KG Per CU M 80000 SQ MM 400 MM 170000 MM To change the default values, enter the new value, then press ß and the key for the value being changed. For example, to change the Desired Riser Height from 7 ½ inches to 200 mm: KEYSTROKE DISPLAY 1. Convert Desired Riser Height to 200 mm: 200Ç9ß7 R-HT STORED 200 MM 2. Convert Desired Tread Width 250 mm: 250Ç9ß9 T-WD STORED 250 MM 3.
4. Convert On-Center Spacing to 400 mm: 400Ç9ß5 OC STORED 400 MM 5. Convert Weight Per Volume to 1500 kG per cu m: 1500ß0 (press 0 until desired value is displayed) STORED 1500 KG PER CU M 6. Convert Block Area to 80000 sq mm: 80000Ç99ß4 B-AR STORED 80000 SQ MM 7. Convert Block Length to 400 mm: 400Ç9ßÇl B-LN 400 MM 8.
KEY DEFINITIONS Basic Function Keys + – x Arithmetic operation keys. ÷= % Four-function (+, –, x, ÷) percent key. 0–9 and • Keys used for entering numbers. O Off Key — Turns all power off, clearing all non-permanent registers. o On/Clear Key — Turns on power. Pressing once clears the display. Pressing twice clears all temporary values. Ç Convert Key — Used with the dimensional keys to convert between dimensions or with other keys to access special functions. ß Store Key — Used for storing values.
Unit Keys y f i / m Ç7 Ç9 Ç2 Yards Feet Inch Fraction Bar Meters Centimeters Millimeters Acres Length, Width and Height Keys l Enters length for calculation of area or volume. W Calculates area, square-up and perimeter. h Calculates volume, wall area and total room area. Circle/Arc Keys C Circle — Calculates circle area and circumference. a Arc — Calculates Arc Length or Degree, chord length, segment area, pie slice area, segment rise, and length of arched segment wall studs.
Ça Radius — Enters or calculates circle radius. Construction Project Keys Ç l Blocks/Bricks — Finds the number of blocks or bricks for a given area and stored block/ brick size. ß 4 — Stores block or brick size. Ç8 Board Feet — Enters or converts cubic values to Board Feet. Â Compound Miter — Calculates (based on entered spring and wall corner angle) miter angle, and bevel angle for cutting crown moulding. ß Â —Stores value other than default spring (crown) angle of 45°.
Ç W Footing — Finds quantity of concrete, based on entered wall length and stored footing area. ß 6 — Stores footing area. Ç d Roof — Calculates roof area, number of roof squares and bundles, and number of 4 x 8 sheets based on an entered or calculated plan area. ÇR Polygon — Calculates full angle, bi-sect angle, side length, perimeter and area based on entered radius and number of sides. Ç5 Studs — Calculates number of studs based on stored On-center spacing and entered length of wall.
r Enters or calculates the vertical leg of a right triangle. Ç r Rake-Wall — Finds the stud sizes based on entered right triangle values. R Enters or calculates the horizontal leg of a right triangle. d Diagonal — Enters or calculates the Diagonal leg, or Common rafter. H Hip/Valley — Calculates length of the regular or irregular Hip/Valley rafter. Ç H Enters irregular pitch used to calculate lengths of the irregular Hip/Valley and Jack rafters.
Stair Layout Key s Given rise and/or run and stored variables, calculates or displays: Press 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Result Riser Height Number of Risers Riser Overage/ Underage Tread Width Number of Treads Tread Overage/ Underage Stairwell Opening Stringer Length Angle of Incline Stored or Calculated Run Stored or Calculated Rise Stored Desired Riser Height Stored Desired Tread Width Stored Headroom Stored Floor Thickness POCKET REFERENCE GUIDE — 9
Ç s Riser Limited — Recalculates Riser Height and other stair values if you’re limited by local code. The calculated Riser Height will never exceed the stored Desired Riser Height. Customizable Stair Settings ß7 Stores Desired Riser Height. ß9 Stores Desired Tread Width. ß8 Stores Floor Thickness. Ç ß Sets Headroom. See large ß ß User’s Guide, Preference ß Settings, for details.
Ç• Converts between D:M:S and Decimal Degrees.
ENTERING DIMENSIONS Entering Linear Dimensions Examples of entering Linear Dimensions: DIMENSION KEYSTROKE Clear calculator 17.5 m o 17•5m Clear calculator 100 cm o 100Ç7 Clear calculator 500 mm o 500Ç9 Entering Square/Cubic Dimensions Examples of entering Square and Cubic Dimensions: KEYSTROKE DISPLAY oo 0. Enter numeric value and press desired unit key once to label value as “Linear:” 100Ç9 100. MM KEYSTROKE DISPLAY oo 0.
KEYSTROKE DISPLAY oo 0. Enter numeric value and press desired unit key three times to label value as “Cubic:” 100Ç999 100 CU MM Note: If you pass the desired dimensional format, keep on pressing the dimensional unit key until the desired result is displayed again. EXAMPLES Adding and Subtracting Strings of Dimensions Add the following measurements: • 850 mm • 1.2 m • 600 mm Then subtract 175 mm. KEYSTROKE 8 1 6 – 5 • 0 1 0 2 0 7 Ç9+ m+ Ç9= 5Ç9= DISPLAY 2650. 2475.
Rectangular Area and Volume Find the area and volume: • Length: 6200 mm • Width: 3500 mm • Height: 450 mm KEYSTROKE DISPLAY 6200Ç9l 3500Ç9WW AREA 21.7 450Ç9hh VOL 9.765 SQ M CU M Entering Square and Cubic and Adding a Waste Allowance Add a 10% waste allowance to 5200 sq mm. Then add a 20% waste allowance to 4500 cu mm: KEYSTROKE DISPLAY 5200Ç99+10% 5720. 4500Ç999 +20% 5400.
Using Multi-Function h Key Find the volume, wall area and total room area of a room measuring 4500 mm x 5500 mm. The room is 2500 mm high. KEYSTROKE DISPLAY oo 0. 4 5 0 0 Ç 9 l LNTH 4500. MM 5 5 0 0 Ç 9 W WDTH 5500. MM 2 5 0 0 Ç 9 h HGHT 2500. MM h VOL 61.875 CU M h WALL 50. SQ M h ROOM 74.75 SQ M Dividing Dimensions Divide 4700 mm into thirds (divide by 3): KEYSTROKE DISPLAY 4700Ç9÷3= 1567.
Linear Conversions Convert 3200 mm to other dimensions: KEYSTROKE 3200Ç9 Ç7 Çm Ç f* Ç i* Çy DISPLAY 3200. MM 320. CM 3.200 M 10 FEET 6 INCH 126 INCH 3.5 YD *Repeated presses of f or i will toggle between Feet-Inch-Fractions and Decimal Feet or Inches. Blocks How many blocks (block size 200 mm x 400 mm) will you need to build a retaining wall measuring 2400 mm x 6700 mm? KEYSTROKE oo 2400Ç9x 6700Ç9m= Ç l (Blocks) DISPLAY 0. 16.08 SQ M BLKS 201.
Board Feet and Cost Find the total Board Feet for the following boards: 2 x 4 x 16, 2 x 10 x 18 and 2 x 12 x 20. What is the total cost at $275 per MBM? KEYSTROKE DISPLAY oo 0. 2x4x16Ç8μ BDFT 10.66667 M 2x10x18Ç8μ BDFT 30. M 2x12x20Ç8μ BDFT 40. M ®® BDFT 80.66667 x 2 7 5 Ç 0 (Cost) $22.18 Circle Area and Circumference Find the area and circumference of a circle with a diameter of 625 mm: KEYSTROKE DISPLAY oo 0. 625Ç9C DIA 625. MM C AREA 306796. SQ MM C CIRC 1963.
Circle/Arc Properties Find Arc properties given a 1500 mm diameter and an Arc length of 900 mm: KEYSTROKE DISPLAY 1. Enter Circle diameter and Arc length: oo 0. 1 5 0 0 Ç 9 C DIA 1500. MM 900Ç9a ARC 900. MM 2. Find Degree of Arc, Chord Length, Segment Area, Pie Slice Area and Segment Rise: a a a a a ARC 68.75° CORD 847. MM SEG 75364. SQ MM PIE 337500. SQ MM RISE 131. MM* *You may also find arched segment wall stud sizes, based on the stored o.c.
KEYSTROKE oo 38ß 60    DISPLAY 0. 38.00° MITR 46.84° BEVL 43.03° STORED SPRG 38.00° CRNR 60.00° SPRG STORED Concrete Columns Find the total cubic kilograms and cubic meters (using 1500 kg per cubic meter) required for three (3) colums, each with a diameter of 1600 mm and a height of 3000 mm: KEYSTROKE DISPLAY 1. Recall stored Weight per Volume: oo STORED ®0 1500 KG Per 0. CU M 2. Enter diameter: 1600Ç9C DIA 1600. MM 3. Find total volume: 3000Ç9h Ç C (Column/Cone) COL 6.03 CU M 4.
Concrete Footings Find the volume of concrete required for an 200 mm x 400 mm footing that measures 30 m in length: KEYSTROKE DISPLAY oo 0. 200Ç9x400Ç9= 80000. SQ MM ß6 F-AR STORED 80000. SQ MM 3 0 m Ç W (Footing) FTG 2.4 CU M Concrete Volume for Driveway Calculate the cubic meters of concrete required to pour a driveway that measures: 14 m long x 4 m wide x 125 mm deep. If concrete is $65 per cubic meter, what will it cost? KEYSTROKE DISPLAY oo 14m x4m x125Ç9= x 6 5 Ç 0 (Cost) 0. 14 M 4M 7 CU M $455.
Converting D:M:S Convert 23° 42’ 39” to decimal degrees: KEYSTROKE oo 23•42•39 Ç • (dms deg) DISPLAY 0. DMS 23.42.39 23.71° Polygon — Brick Paving Find the Full Angle, Bi-sect Angle, Side Length, Perimeter and Area of a Polygon for paving a brick patio. The radius is 2300 mm and the number of sides is five: KEYSTROKE DISPLAY oo 0. 2 3 0 0 Ç 9 Ç a (Radius) RAD 2300. MM 5 Ç R (Polygon) FULL 108.00° R HALF 54.00° R SIDE 2704. MM R PER 13519. MM Rm AREA 12.
Squaring-Up a Foundation Square-up a 4700 mm x 3100 mm foundation:* KEYSTROKE DISPLAY oo 0. 4 7 0 0 Ç 9 l LNTH 4700. MM 3 1 0 0 Ç 9 W WDTH 3100. MM WW SQUP 5630. MM *Alternative Method Square-up a 4700 mm x 3100 mm foundation:* KEYSTROKE oo 4700Ç9R 3100Ç9r d DISPLAY 0. RUN 4700. MM RISE 3100. MM DIAG 5630.
Studs Find the number of 400 mm On-center studs* required for a wall measuring 7600 mm in length: KEYSTROKE DISPLAY oo 0. 7 6 0 0 Ç 9 Ç 5 (Studs) STUD 20. *If you are working with a number other than 400 mm On-center, change it via ß 5 (e.g., 500 mm o.c., enter 5 0 0 Ç 9 ß 5, then recalculate above).
RIGHT ANGLE/FRAMING Pitch — Converting Roof Angle Find the % Grade, Slope and Pitch in mm if the roof angle is 30.25°: KEYSTROKE oo 30•25p p p pÇ9 DISPLAY 0. PTCH 30.25° %GRD 58.31828 SLP 0.583183 PTCH 178.MM Converting Slope Find the Pitch in Inches, Pitch Degrees, and Percent Grade if the slope is 0.625: KEYSTROKE DISPLAY oo 0. • 6 2 5 Ç p (Slope) SLP 0.625 pÇ9 PTCH 190.5 MM p PTCH 32.01° p %GRD 62.
Common Rafter Length Find the point-to-point length of the Common rafter on a 175/300 mm pitched roof with a span of 8500 mm. What are the angle cuts? KEYSTROKE 1. Enter Pitch: oo 175Ç9p DISPLAY 0. PTCH 175. MM 2. Enter half the span as the run: 8 5 0 0 Ç 9 ÷ 2 = 4250. R RUN 4250. MM MM 3. Find the Common and cuts: d DIAG 4900. MM d PLMB 29.86° d LEVL 60.
Regular Hip/Valley and Jack Rafters A roof’s Pitch is 255/300 mm and half the total span is 1800 mm. Find the lengths of the Common, Hip/Valley and Jack rafters. Also find the incremental jack adjustment and the cut angles. (Jack rafters at 400 mm On-center spacing.) KEYSTROKE DISPLAY 1. Find the Common rafter length: oo 0. 1 8 0 0 Ç 9 R RUN 1800. MM 2 2 5 Ç 9 p PTCH 225. MM d (Common) DIAG 2237. MM 2.
j j j j j JK 4 249. MM JK 5 0. MM PLMB 36.43° LEVL 53.57° CHK1 45.00° Irregular Hip/Valley A roof has a 225/300 mm Pitch, an irregular Pitch of 200/300 mm, and half the span is 2000 mm. Solve the Hip/Valley length. On-center spacing is 400 mm. KEYSTROKE DISPLAY 1. Find Common rafter length: oo 0. 2 2 5 Ç 9 p PTCH 225. MM 2 0 0 0 Ç 9 R RUN 2000. MM d DIAG 2486. MM 2. Enter On-center spacing and irregular Pitch; find irregular Hip rafter: ® 5 (o.c.) OC STORED 400. MM 2 0 0 Ç 9 Ç H Ç 9 (Ir/Pitch) 200.
Rake-Wall – No Base Find each stud size in a Rake-Wall with a peak of 1000 mm, and a length of 1500 mm. Use 400 mm as your on-center spacing: KEYSTROKE DISPLAY 1. Enter Rise and Run: oo 0. 1 0 0 0 Ç 9 r RISE 1000. MM 1 5 0 0 Ç 9 R RUN 1500. MM 2. Find stud lengths: Ç r (R/Wall) RWOC STORED 400. r RW 1 733. r RW 2 467. r RW 3 200. r BASE 0 MM MM MM MM MM 3. Find Rake-Wall angle of incline: r RW 33.
Rake-Wall – With Base Find each stud size in a Rake-Wall with a peak of 1200 mm, a length of 2400 mm, and a base of 1500 mm. Use 400 mm as your On-center spacing: KEYSTROKE DISPLAY 1. Enter Rise and Run: oo 0. 1 2 0 0 Ç 9 r RISE 1200. MM 2 4 0 0 Ç 9 R RUN 2400. MM 2. Enter base and find stud lengths and angle of incline: 1 5 0 0 Ç 9 Ç r (R/Wall) BASE 1500. MM r RWOC STORED 400. MM r RW 1 2500. MM r RW 2 2300. MM r RW 3 2100. MM r RW 4 1900. MM r RW 5 1700. MM r BASE 1500. MM r RW 26.
STAIRS Stairs — Given Rise and Run You’re going to build a stairway that has a floor-to-floor height of 3100 mm, a run of 3800 mm, and a desired riser height of 200 mm (default). Find the stair values: KEYSTROKE DISPLAY 1. Enter rise and run: oo 0. 3 1 0 0 Ç 9 r RISE 3100. MM 3 8 0 0 Ç 9 R RUN 3800. MM 2. Recall stored 200 mm desired riser height, then find the stair values: ®7 R-HT STORED 200 MM s R-HT 194. MM s RSRS 16. s R+/– 4. MM s T-WD 253. MM s TRDS 15. s T+/– -5. MM s OPEN 2976. MM s STRG 4782.
Stairs — Given Rise Only You’re building a stairway with a total rise of 3000 mm. Using the default riser height of 200 mm and tread width of 250 mm, find the stair values: KEYSTROKE DISPLAY 1. Enter known Rise: oo 3000Ç9r 0. RISE 3000. MM 2. Recall stored desired stair riser height: ®7 R-HT STORED 200. MM 3. Recall stored desired stair tread width: ®9 T-WD STORED 250. MM 4. Find stair values: s R-HT 200. MM s RSRS 15. s R+/– 0. MM s T-WD STORED 250. MM s TRDS 14. s T+/– 0. M s OPEN 2853.
Stairs — Riser Limited Function Calculate stairs using the Riser Limited function, if you must limit the Riser Size to 200 mm: KEYSTROKE DISPLAY 1. Enter Rise and Run: oo 3000Ç9r 0. RISE 3000. MM RUN 3800. MM 3800Ç9R 2. Recall stored 200 mm Desired Riser height and find stair values: ®7 R-HT STORED 200. MM Ç s (Riser Limited) R-HT 200. MM s RSRS 15. s R+/– 0. MM s T-WD 271. MM s TRDS 14. s T+/– -6. MM s OPEN 3092. MM s STRG 4715. MM s INCL 36.
DEFAULT SETTINGS After a Clear All (Ç x), your calculator will return to the following settings: STORED VALUES Desired Riser Height Desired Tread Width Floor Height On-center Spacing Weight per Volume Block Area Block Length Footing Area Spring (crown) Angle DEFAULT VALUE 7-1/2 10 10 16 1.5 INCH INCH INCH INCH Ton Per CU YD 128. SQ INCH 16 INCH 264. SQ INCH 45.
(Cont’d) PREFERENCE SETTINGS Stairway Headroom Rake-Wall Arched Wall Jack Rafters Irregular Jack Spacing Exponent Meter Linear Display Decimal Degree Display Fractional Mode DEFAULT VALUE 6 feet 8 inch Descending Outside Descending OC-OC Off 0.000 0.00° Standard *Depressing the Reset button located above the p key will also perform a Full Reset.
REPAIR AND RETURN 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 on, check the batteries as outlined in the User's Guide. 3. If you need more assistance, please go to our website listed below 4.
This equipment has been certified to comply with the limits for a Class B computing device, pursuant to Subpart J of Part 15 of FCC rules. Software copyrighted and licensed to Calculated Industries, Inc. by Construction Master Technologies, LLC, 2008. Pocket Reference Guide copyrighted by Calculated Industries, Inc. © 2008. Construction Master® and Calculated Industries® are registered trademarks of Calculated Industries, Inc.
