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CONSTRUCTION MASTER®PROPocket Reference GuideFor Models:4065 v3.1 Construction Master Pro 4080 v3.1 Construction Master Pro Trig

POCKET REFERENCE GUIDE — 6R Enters or calculates thehorizontal leg of a right tri-angle. dDiagonal— Enters or cal-culates the Diagonal leg,or Common r

POCKET REFERENCE GUIDE — 7Stair Layout Keys Given rise and/or run andstored variables, calculatesor displays:Press Result1 Riser Height2 Number of Ris

POCKET REFERENCE GUIDE — 8Ç sRiser Limited—Recalculates Riser Heightand other stair values ifyou’re limited by localcode. The calculated RiserHeight w

POCKET REFERENCE GUIDE — 9Miscellaneous FunctionsB Backspace Key® = Paperless TapeÇ ß Preference SettingsÇ ÷ (1/x) ReciprocalÇ x Clear AllÇ – (+/–) To

POCKET REFERENCE GUIDE — 10ß 1 (M1) Storage Registerß 2 (M2) Storage Registerß 3 (M3) Storage Register® ® Recall and Clear M+® µ, 1, Recall M+, M1, M2

POCKET REFERENCE GUIDE — 11Entering Square/Cubic DimensionsExamples of entering Square and CubicDimensions:KEYSTROKE DISPLAYo o 0.Enter numeric value

POCKET REFERENCE GUIDE — 12Adding and Subtracting Strings of DimensionsAdd the following measurements:• 6 Feet 2-1/2 Inches• 11 Feet 5-1/4 Inches• 18.

POCKET REFERENCE GUIDE — 13Entering Square and Cubic and Addinga Waste AllowanceAdd a 10% waste allowance to 55 SquareFeet. Then add a 20% waste allow

POCKET REFERENCE GUIDE — 14Dividing DimensionsDivide 15 Feet 3-3/4 Inches into thirds(divide by 3):KEYSTROKE DISPLAY1 5 f 3 i 3 / 4 ÷ 3 =5 FEET 1-1/4

POCKET REFERENCE GUIDE — 15Square and Cubic ConversionsConvert 14 Square Feet to Square Yards:KEYSTROKE DISPLAY1 4 f f 14 SQ FEETÇ y 1.555556 SQ YDCon

The Construction Master Procalculatorshelp you save time, cut costly errors andbuild like a pro! Quickly Solve:• Feet-Inches-Fractions, Yards, MetricD

POCKET REFERENCE GUIDE — 16KEYSTROKE DISPLAYo o 0.2 x 4 x 1 6 Ç 8 µBDFT 10.66667 2 x 1 0 x 1 8 Ç 8 µBDFT 30. 2 x 1 2 x 2 0 Ç 8 µBDFT 40. ® ® BDFT

POCKET REFERENCE GUIDE — 172. Find Degree of Arc, Chord Length,Segment Area, Pie Slice Area andSegment Rise:a ARC 74.48°a CORD 3 FEET 0-5/16 INCHa S

POCKET REFERENCE GUIDE — 18Concrete Columns Find the total Cubic Yards and Tons ofconcrete (using 1.5 tons per cu. yd)required for three (3) columns,

POCKET REFERENCE GUIDE — 19Concrete Footings (NOT AVAILABLE ONTRIG MODEL #4080)Find the volume of concrete required foran 8” x 16” footing that measur

POCKET REFERENCE GUIDE — 20Converting D:M:SConvert 23° 42’ 39” to decimal degrees:KEYSTROKE DISPLAYo o 0.2 3 • 4 2 • 3 9 DMS 23.42.39Ç • (dms deg)23.

POCKET REFERENCE GUIDE — 21KEYSTROKE DISPLAYo o 0.7 f 5 i Ç a (Radius)RAD 7 FEET 5 INCH5 Ç R (Polygon)FULL 108.00°R HALF 54.00°R SIDE 8 FEET 8-5/8

POCKET REFERENCE GUIDE — 22Squaring-Up a FoundationSquare-up a 15’ 6” x10’ 2” foundation:*KEYSTROKE DISPLAYo o 0.1 5 f 6 i lLNTH 15 FEET 6 INCH1 0 f

POCKET REFERENCE GUIDE — 23StudsFind the number of 16-inch On-centerstuds* required for a wall measuring 25feet in length: KEYSTROKE DISPLAYo o 0.2 5

POCKET REFERENCE GUIDE — 24Pitch — Converting Roof AngleFind the % Grade, Slope and Pitch inInches if the roof angle is 30.25°:KEYSTROKE DISPLAYo o 0.

POCKET REFERENCE GUIDE — 25KEYSTROKE DISPLAY1. Use trigonometry formula (divide therise by the hypotenuse):o o 0.6 f ÷ 1 0 f = 0.62. Solve for angle o

KEY DEFINITIONS...1Basic Function Keys...1Unit Keys ...

POCKET REFERENCE GUIDE — 26Regular Hip/Valley and Jack RaftersA roof’s Pitch is 9/12 and half the totalspan is 6 Feet. Find the lengths of theCommon,

POCKET REFERENCE GUIDE — 27j JK 4 0 FEET 10 INCHj JK 5 0 FEET 0 INCHj PLMB 36.87°j LEVL 53.13°j CHK1 45.00°Irregular Hip/Valley A roof has a 9/12

POCKET REFERENCE GUIDE — 28Rake-Wall – No BaseFind each stud size in a Rake-Wall with apeak of 3 Feet 6 Inches, and a length of 5 Feet. Use 16 Inches

POCKET REFERENCE GUIDE — 29Rake-Wall – With BaseFind each stud size in a Rake-Wall with apeak of 4 Feet, a length of 8 Feet, and abase of 5 Feet. Use

POCKET REFERENCE GUIDE — 30Stairs — Given Rise and RunYou’re going to build a stairway that has afloor-to-floor height of 10 Feet 1 Inch, arun of 12 F

POCKET REFERENCE GUIDE — 31Stairs — Given Rise OnlyYou’re building a stairway with a total riseof 9 Feet 11 Inches. Using the defaultriser height of 7

POCKET REFERENCE GUIDE — 32Stairs — Riser Limited FunctionCalculate stairs using the Riser Limitedfunction, if you must limit the Riser Size to7-1/2 I

POCKET REFERENCE GUIDE — 33After a Clear All(Ç x), your calculatorwill return to the following settings:STORED VALUES DEFAULT VALUEDesired Riser Heigh

POCKET REFERENCE GUIDE — 34(Cont’d)PREFERENCE SETTINGS DEFAULT VALUEStairway Headroom 6 feet 8 inchRake-Wall DescendingArched Wall OutsideJack Rafters

This equipment has been certified to complywith the limits for a Class B computing device,pursuant to Subpart J of Part 15 of FCC rules.Software copyr

Board Feet and Cost ...15Circle Area and Circumference...16Circle/Arc Properties...16Compound Mite

POCKET REFERENCE GUIDE — 1Basic Function Keys+ – x Arithmetic operation keys.÷ =% Four-function (+, –, x, ÷)percent key.0 – 9 Keys used for enteringan

POCKET REFERENCE GUIDE — 2Unit Keysy Yardsf Feeti Inch / Fraction Barm Meters Ç 7 CentimetersÇ 9 MillimetersÇ 2 AcresLength, Width and Height Keys(NOT

POCKET REFERENCE GUIDE — 3Ç aRadius— Enters or calcu-lates circle radius.Construction Project KeysÇ lBlocks/Bricks— Findsthe number of blocks orbricks

POCKET REFERENCE GUIDE — 4Ç hDrywall— Calculates num-ber of 4 x 8, 4 x 9 and 4 x 12drywall sheets based onentered or calculated area.Ç WFooting— Finds

POCKET REFERENCE GUIDE — 5Trigonometric Keys (TRIG MODEL #4080)S Finds the sine of a degreeor undimensioned value.Ç SArcsine (sin-1)— Gives theangle f