the construction master 5calculator helpspdf.lowes.com/useandcareguides/098584040505_use.pdfthe...

The Construction Master 5 calculator helpsyou save time, cut costly errors and buildlike a pro!

Quickly Solve:

• Feet-Inches-Fractions, Yards, MetricDimensional Problems and Conversions

• Problems Involving All Fractions — 1/2-1/64ths!

• Areas, Volumes and Weights

• Circle/Arc Calculations

• Common, Hip/Valley, Jack RafterLengths (Regular and Irregular)

• Rake-Wall Solutions

• Concrete, Flooring Quantity

• Roofing Materials

• Squaring-Up

• Stair Layout Solutions, and more!

CONSTRUCTION MASTER® 5 v3.1

GETTING STARTED...............................1KEY DEFINITIONS/FUNCTIONS..........1

Basic Function Keys............................1Dimension Keys...................................2Arc/Circle Keys ....................................4Right Triangle/Roof Framing Keys ......4Stair Layout Key ..................................7Stair Settings .......................................8Miscellaneous Functions .....................8

PAPERLESS TAPE EXAMPLE ...........10PREFERENCE SETTINGS .................11ENTERING DIMENSIONS ..................13

Linear Dimensions.............................13Square and Cubic Dimensions..........13Linear Conversions............................14Square and Cubic Conversions.........15

BASIC MATH OPERATIONS ..............15EXAMPLES...........................................16

Adding and Subtracting Strings of Dimensions.....................................16

Multiplying Dimensions......................16Dividing Dimensions ..........................17Percent Calculations..........................17Square Area.......................................18Rectangular Area and Volume...........18Entering Square and Cubic and

Adding a Waste Allowance.............19Weight Conversions ..........................19Weight per Volume ............................20Using the Memory .............................21Board Feet and Cost .........................22Carpentry — Calculating Number

of Studs ..........................................22Baluster Spacing ...............................23

TABLE OF CONTENTS

Circle Area and Circumference .........24Arc Angle or Degree ..........................24Concrete Volume for Driveway..........25Concrete Columns.............................25Complex Concrete Volume................26

RIGHT ANGLE/FRAMING...................28Squaring-Up a Foundation ................29Pitch — Converting Roof Angle.........29Converting Slope ...............................30Common Rafter Length .....................30Regular Hip/Valley and Jack

Rafters............................................31Irregular Hip/Valley ............................33Rake-Wall — No Base.......................34

STAIRS ................................................35Stairs — Given Rise and Run ...........35Stairs — Given Only the Floor-to-Floor

Rise; Entering Other Than 7-1/2 Inch Desired Riser Height ......................37

APPENDIX ............................................38Setting Fractional Resolution.............38Default Settings .................................39Auto-Shut Off .....................................39Accuracy/Errors .................................40Battery ...............................................41Replacing the Battery ........................41Reset .................................................41

AREA AND VOLUME FORMULAS .....42REPAIR AND RETURN .......................44WARRANTY ........................................45FCC CLASS B.....................................47LOOKING FOR NEW IDEAS ..............47

POCKET REFERENCE GUIDE — 1

KEY DEFINITIONS / FUNCTIONS

Basic Function Keys

+ – x Arithmetic operation keys.÷ =

0 – 9 Keys used for enteringand • numbers.

% Percent Key — Four-func-tion (+, –, x, ÷) percent key.

O Off Key — Turns all poweroff, clearing all non-perma-nent registers.

o On/Clear Key — Turns onpower. Pressing once clearsthe display. Pressing twiceclears all temporary values.

Ç Convert Key — Used withthe dimensional keys toconvert between dimen-sions or with other keys toaccess special functions.

√ Square Root Key — Used tofind the Square Root of anon-dimensional or areavalue.

Ç √ x2 Function — Finds theSquare of a linear or non-dimensional value.

GETTING STARTED


® Recall Key — Used withother keys to recall storedvalues and settings.

µ Memory Key — Adds thedisplayed value to Memory.Clears when the calculatoris shut off.

Ç µ Memory Minus (M–) —Subtracts the displayedvalue from Memory.

Ç ® Memory Clear — ClearsMemory without changingcurrent display.

® ® Memory Clear — ClearsMemory and displaysMemory Total.

Dimension Keys

y Yards Key — Enters orconverts to Yards.

f Feet Key — Enters or con-verts to Feet as whole ordecimal numbers. Alsoused with the i and /keys for entering Feet-Inchvalues (e.g., 6 f 9 i

1 / 2). Repeated press-es during conversions tog-gle between Fractional andDecimal Feet.


i Inch Key — Enters or con-verts to Inches. Entry canbe whole or decimal num-bers. Also used with the /key for entering fractionalinch values (e.g., 9 i 1

/ 2). Repeated pressesduring conversions togglebetween Fractional andDecimal Inches.

/ Fraction Bar Key — Usedto enter Fractions. Fractionscan be entered as proper(1/2, 1/8, 1/16) or improper(3/2, 9/8). If the denomina-tor (bottom) is not entered,the calculator's fractionalaccuracy setting is auto-matically used.

m Meters Key — Enters orconverts to Meters.

c Centimeters Key — Entersor converts to Centimeters.

M Millimeters Key — Entersor converts to Millimeters.

b Board Feet Key — Entersor converts Cubic values toBoard Feet. One BoardFoot is equal to 144 CubicInches.


w Weight Key — Enters orconverts (a volume value)to Tons, Pounds, MetricTons or Kilograms.Repeated presses will cyclethrough these units.

Arc/Circle Keys

C Circle Key — CalculatesCircle Area andCircumference based onentered Diameter.

Ç C Arc — Calculates ArcLength or Degree based onentered Diameter and ArcDegree or Length (e.g., ifArc Degree is entered, itwill calculate Arc Length,and vice versa).

Right Triangle/Roof Framing Keys

p Pitch Key — This key isused to enter or calculatethe Pitch (Slope) of a roof(or Right Triangle). Pitch isthe amount of “Rise” over12 Inches of “Run.” Pitchmay be entered as:


a Dimension 9 i pan Angle 3 0 pa Ratio 0 • 7 5 Ç pa Percentage 7 5 % p

A Pitch entry will remain inpermanent storage untilrevised or reset. A solutionwill be replaced by itsentered value once the calculator is cleared.

Ç p Enters Pitch Ratio (e.g., •5 8 3 Ç p).

r Rise Key — Enters or cal-culates the Rise or verticalleg (height) of a RightTriangle.

R Run Key — Enters or cal-culates the Run or horizon-tal leg (base) of a RightTriangle.

d Diagonal Key — Enters orcalculates the common orDiagonal leg (Hypotenuse)of a Right Triangle. Typicalapplications are “squaring”slabs or finding commonrafter lengths.

H Hip/Valley Key —Calculates length of theRegular or Irregular Hip/Valley rafter.


Ç H Irregular Pitch — EntersIrregular Pitch used to cal-culate lengths of theIrregular Hip/Valley andJack rafters.

j Jack Key — CalculatesJack rafter lengths on theRegular-pitched roof side.

Ç j Irregular Jack — CalculatesJack rafter lengths on theIrregular-pitched roof side.

∑ Rake-Wall Key — Findsthe stud sizes based onentered Right Triangle val-ues and the stored On-Center spacing. If a dimen-sional value is enteredbefore pressing ∑, thatvalue is considered thebase and will be added tothe stud lengths.


Stair Layout Key

s Stair Key — Given Riseand/or Run and entered/stored variables, calculatesor displays:

Press Result1 Riser Height2 Number of Risers3 Riser Overage/

Underage4 Tread Width5 Number of Treads6 Tread Overage/

Underage7 Stringer Length8 Angle of Incline9 Stored Run10 Stored Rise11 Stored Desired

Riser Height12 Stored Desired

Tread Width

STAIR DEFAULT VALUES

• 7-1/2” Desired Riser Height• 10” Desired Tread Width


Stair Settings

You may set “desired Riser height” and“desired Tread width” to any value byusing the following keys:

Ç 7 Riser Height — Stores adesired Riser height otherthan 7-1/2” (default). Forexample, enter 8 Inches: 8 i Ç 7.

Ç 9 Tread Width — Stores adesired Tread width otherthan 10” (default). Forexample, enter 12 Inches:1 2 i Ç 9.

Miscellaneous Functions

B Backspace Key — Used to delete entries one key-stroke at a time (unlike theo function, which deletesthe entire entry).

Ç ÷ 1/x — Finds the reciprocalof a number (e.g., 8 Ç

÷ 0.125).

Ç x Clear All — Returns allstored values to the defaultsettings. (Does not affectPreference Settings.)

Ç – (+/–) Toggle

Ç + Pi (π) 3.141593


Ç √ x2 — Squares the value inthe display.

√ Square Root Key — Usedto find the Square Root of anon-dimensional or areavalue.

Ç • Total Cost — Based onentry of per unit cost.

Ç 0 Store Weight per Volume— Stores a new Weight perVolume value as listedbelow:Note: After entering a valueand pressing Ç 0, continuepressing the 0 digit key untilyou’ve reached the desiredWeight per Volume format. Torecall your setting, press ® 0.

• Ton Per CU YD• LB Per CU YD• LB Per CU FEET• MET Ton Per CU M• kG Per CU M

This value is stored untilyou change it or perform aClear All (Ç x).

Ç 5 On-Center Spacing (o.c.)— Stores a new on-centerspacing (e.g., 2 4 i

Ç 5). The value is usedfor jack and rake wall studcalculations. Default is 16”.


® = Paperless Tape – Usefulfor checking figures, as itscrolls through your past 20entries or calculations.Press ® = to accessPaperless Tape mode.Press + or – to scroll for-ward or backward. Press =to exit mode and continuewith a new entry or calcula-tion. See example below.

PAPERLESS TAPE EXAMPLE

Add 6 Feet, 5 Feet and 4 Feet, thenaccess the paperless tape mode andscroll back through your entries. Then,back up one entry, exit the tape mode andadd 10 Feet to the total.

KEYSTROKE DISPLAY

o o 0.6 f + 6 FEET 0 INCH

5 f + 11 FEET 0 INCH

4 f = 15 FEET 0 INCH

® = TTL= 15 FEET 0 INCH

+ 01 6 FEET 0 INCH

+ 02 + 5 FEET 0 INCH

+ 03 + 4 FEET 0 INCH

– 02 + 5 FEET 0 INCH

= TTL= 15 FEET 0 INCH

+ 1 0 f = 25 FEET 0 INCH


PREFERENCE SETTINGS

Press Ç, then %, then keep pressing %to toggle through the main settings. Pressthe + key to advance within sub-setting.Use the – key to back up. Press o keyto exit Preferences.

PRESS Ç AND: SETTING--FUNCTION

First pressof %: Fractional Resolution:

--1/16+ --1/32+ --1/64+ --1/2+ --1/4+ --1/8+ --1/16 (repeats options)

Second pressof %: Area Displays:

--Std.+ --0. SQ FEET+ --0. SQ YD+ --0. SQ M+ --Std. (repeats options)

Third pressof %: Volume Displays:

--Std.+ --0. CU YD+ --0. CU FEET+ --0. CU M+ --Std. (repeats options)

(Cont’d)


(Cont’d)

PRESS : SETTING--FUNCTION

Fourth pressof %: Meter Linear Displays:

--0.000 M+ --FLOAt M (floating point)+ --0.000 M (repeats options)

Fifth pressof %: Decimal Degree Displays:

--0.00º+ --FLOAt (floating point)+ --0.00º (repeats options)

Sixth pressof %: Fractional Mode:

--Std.+ --COnSt+ --Std. (repeats options)


ENTERING DIMENSIONS

Linear Dimensions

When entering Feet-Inch values, enterdimensions from largest to smallest —Feet before Inches, Inches beforeFractions. Enter Fractions by entering thenumerator (top number), pressing /(Fraction Bar key) and then the denomina-tor (bottom number).Note: If a denominator is not entered, the frac-tional setting value is used.

Examples of how linear dimensions areentered (press o after each entry):

DIMENSION KEYSTROKES

5 Yards 5 y

5 Feet 1-1/2 Inch 5 f 1 i 1 / 2

17.5 Meters 1 7 • 5 m

Square and Cubic Dimensions

Examples of how Square and Cubicdimensions are entered (press o aftereach entry):

DIMENSION KEYSTROKES

5 Cubic Yards 5 y y y

130 Square Feet 1 3 0 f f

33 Square Meters 3 3 m m


Linear Conversions

Convert 10 Feet 6 Inches:

KEYSTROKE DISPLAY

o o 0.1 0 f 6 i 10 FEET 6 INCH

Ç y 3.5 YD

Ç i 126 INCH

Ç m 3.200 MÇ c 320.04 CM

Ç M 3200.4 MM

Convert 14 Feet 7-1/2 Inches to Decimal Feet:

KEYSTROKE DISPLAY

o o 0.1 4 f 7 i 1 / 2

14 FEET 7-1/2 INCH

Ç f 14.625 FEET

Convert 22.75 Feet to Feet-Inches:

KEYSTROKE DISPLAY

o o 0.2 2 • 7 5 f 22.75 FEET

Ç f 22 FEET 9 INCH


Square and Cubic Conversions

Convert 14 Square Feet to Square Yards:

KEYSTROKE DISPLAY

o o 0.1 4 f f 14 SQ FEETÇ y 1.555556 SQ YD

(1.6 square yards)

Convert 25 Square Yards to Square Feet:

KEYSTROKE DISPLAY

o o 0.2 5 y y 25 SQ YDÇ f 225. SQ FEET

Convert 12 Cubic Feet to Cubic Yards:

KEYSTROKE DISPLAY

o o 0.1 2 f f f 12 CU FEETÇ y 0.444444 CU YD

BASIC MATH OPERATIONS

Your calculator uses standard chaininglogic, which simply means that you enteryour first value, the operator (+, –, x,÷), the second value and then the Equalssign (=).

A. 3 + 2 = 5.B. 3 – 2 = 1.C. 3 x 2 = 6.D. 3 ÷ 2 = 1.5

This feature also makes the calculator sim-ple to use for dimensional applications.


Adding and Subtracting Strings ofDimensions

Add the following measurements:

• 6 Feet 2-1/2 Inches• 11 Feet 5-1/4 Inches• 18.25 Inches

Then subtract 2-1/8 Inches:

KEYSTROKE DISPLAY

o o 0.6 f 2 i 1 / 2 +

6 FEET 2-1/2 INCH

1 1 f 5 i 1 / 4 +

17 FEET 7-3/4 INCH

1 8 • 2 5 i = 19 FEET 2 INCH

– 2 i 1 / 8 = 18 FEET 11-7/8 INCH

Multiplying Dimensions

What is the perimeter of a room with threewalls which measure 15 Feet 3-3/4 Incheseach?

KEYSTROKE DISPLAY

3 x 1 5 f 3 i 3 / 4 =45 FEET 11-1/4 INCH

Multiply 5 Feet 3 Inches by 11 Feet 6-1/2Inches:

KEYSTROKE DISPLAY

5 f 3 i x 1 1 f6 i 1 / 2 = 60.59375 SQ FEET

EXAMPLES


Dividing Dimensions

Divide 15 Feet 3-3/4 Inches into thirds(divide by 3):

KEYSTROKE DISPLAY

o o 0.1 5 f 3 i 3 / 4 ÷ 3 =

5 FEET 1-1/4 INCH

How many 3-Foot 6-Inch pieces can youcut from one 25-foot board?

KEYSTROKE DISPLAY

o o 0.2 5 f ÷ 3 f 6 i = 7.142857

(or 7 whole pieces)

Percent Calculations

Add a 10% waste allowance to 2.78 CubicYards:

KEYSTROKE DISPLAY

o o 0.2 • 7 8 y y y + 1 0 %

3.058 CU YD

What is 25% of $1,575?

KEYSTROKE DISPLAY

o o 0.1 5 7 5 x 2 5 % 393.75


Square Area

Find the Area of a square room with sidesmeasuring 15 Feet 8-1/2 Inches:

KEYSTROKE DISPLAY

o o 0.1 5 f 8 i 1 / 2 Ç √ (x 2)

246.7517 SQ FEET

Rectangular Area and Volume

Find the Area and Volume:

• Length: 20 Feet 6-1/2 Inches • Width: 12 Feet 8-1/2 Inches • Height: 10 Inches

First, multiply the Length times the Widthto find the Area. Then, multiply the Areatimes the Height to find the Volume:

KEYSTROKE DISPLAY

o o 0.2 0 f 6 i 1 / 2 x

20 FEET 6-1/2 INCH

1 2 f 8 i 1 / 2 x

261.0503 SQ FEET

1 0 i = 8.057109 CU YD

Convert to Feet:

Ç f 217.542 CU FEET


Entering Square and Cubic and Addinga Waste Allowance

Add a 10% waste allowance to 55 SquareFeet. Then add a 20% waste allowance to150 Cubic Feet:

KEYSTROKE DISPLAY

o o 0.5 5 f f + 1 0 % 60.5 SQ FEET

1 5 0 f f f + 2 0 %

180. CU FEET

Weight Conversions

Convert 150 Pounds to other weights(Tons, Metric Tons, Kilograms):

KEYSTROKE DISPLAY

o o 0.1 5 0 w w* 150 LB

Ç w 0.068039 MET Ton

w 68.03886 kG

w 0.075 Ton

*Calculator may not display Pounds upon firstpress of w; it depends on which unit wasaccessed last. So press w until LB (or desiredunit) is displayed, then convert.


Weight per Volume

Convert 20 Cubic Yards of concrete toTons, Pounds, Metric Tons and Kilograms,if concrete weighs 1.5 Tons per CubicYard (default value):

KEYSTROKE DISPLAY

o o 0.2 0 y y y 20 CU YD

Ç w 30. Ton*w 60000. LB

w 27.21554 MET Ton

w 27215.54 kG

Now convert the above, if concrete weighs2 Tons per Cubic Yard (store new Weightper Volume value):

KEYSTROKE DISPLAY

2 Ç 0 2. Ton Per CU YD

2 0 y y y 20 CU YD

Ç w 36287.39 kG*w 40. Ton

w 80000. LB

w 36.28739 MET Ton

Ç x ALL CLEARED(Clear stored Wt/Vol)

*Calculator will present values in a differentorder based on previous computation; simplycontinue to press w key until desired value isdisplayed.

STORED


Using the Memory

Whenever the µ key is pressed, the displayed value will be added to the Memory. Other memory functions:FUNCTION KEYSTROKES

Add to Memory µ

Subtract from Memory Ç µ

Recall total in Memory ® µ

Display/Clear Memory ® ®

Clear Memory Ç ®

Memory is semi-permanent, clearing onlywhen you:

1) turn off the calculator;2) press ® ®;3) press Ç ®;4) press Ç x (Clear All).

When memory is recalled (® µ), con-secutive presses of µ will display thecalculated average and total count of theaccumulated values.

Example:KEYSTROKE DISPLAY

3 5 5 µ M+ 355.2 5 5 µ M+ 255.7 4 5 Ç µ M- 745.® µ TTL – 135.µ AVG – 45.µ CNT 3.® ® M+ – 135.

M

M

MSTORED

M

M

M


Board Feet and Cost

Find the total Board Feet for the followingboards: 2x4x16, 2x10x18 and 2x12x20.What is the total cost at $275 per Mbm*?*Per thousand Board Foot measure

KEYSTROKE DISPLAY

o o 0.2 x 4 x 1 6 b µ

BDFT 10.66667 2 x 1 0 x 1 8 b µ

BDFT 30. 2 x 1 2 x 2 0 b µ

BDFT 40. ® ® BDFT 80.66667x 2 7 5 Ç • $ 22.18

Carpentry — Calculating Number of Studs

Find the number of 16-Inch On-Centerstuds needed for an 18 Feet 7-1/2 Inchwall.

KEYSTROKE DISPLAY

1. Divide Length by spacing:o o 0.1 8 f 7 i 1 / 2

18 FEET 7-1/2 INCH÷ 1 6 i = 13.96875

(14 studs)

2. Add one for the end:+ 1 = 14.96875

(15 studs)Note: Also applies to trusses and joists.

M

M

M


Baluster Spacing

You are going to install a handrail at thetop of a balcony. Your total span is 156Inches and you would like the spacebetween the balusters to be about 4Inches. If each baluster is 1-1/2 Incheswide, what is the exact spacing betweeneach baluster?

KEYSTROKE DISPLAY

1. Estimate number of balusters in Span:o o 0.1 5 6 i ÷ 156 INCH

5 i 1 / 2 =* 28.36364(28 balusters)

*desired spacing plus baluster width (4 Inches plus1-1/2 Inch)

2. Find total space ‘occupied’ by the balus-ters by multiplying the width of each balus-ter by the rounded number of balusters(found above):

1 i 1 / 2 x 1-1/2 INCH

2 8 = 42 INCH

3. Find total space between all balusters:1 5 6 i – 156 INCH

4 2 i = 114 INCH

4. Find actual baluster spacing by dividingtotal space between all balusters by thenumber of spaces between the balusters(number of balusters plus one equals 29):

1 1 4 i ÷ 114 INCH

2 9 = 3-15/16 INCH


Circle Area and Circumference

Find the Area and Circumference of aCircle with a Diameter of 25 Inches:

KEYSTROKE DISPLAY

o o 0.2 5 i C DIA 25 INCH

C AREA 490.8739 SQ INCH

C CIRC 78-9/16 INCH

Arc Angle or Degree

Find the Arc Angle (or Degree of Arc),given a 5-Foot Diameter and an ArcLength of 3 Feet 3 Inches:

KEYSTROKE DISPLAY

1. Enter Circle Diameter and Arc Length:o o 0.5 f C DIA 5 FEET 0 INCH

3 f 3 i 3 FEET 3 INCH

2. Find Degree of Arc:Ç C ARC 74.48°

Dgm

-AR

C-1

02


Concrete Volume for Driveway

Calculate the Cubic Yards of concreterequired to pour a driveway that meas-ures: 45 Feet 5 Inches long x 13 Feet 6Inches wide x 5 Inches deep. If concrete is$65 per Cubic Yard, what will it cost?

KEYSTROKE DISPLAY

o o 0.4 5 f 5 i 45 FEET 5 INCHx 1 3 f 6 i 13 FEET 6 INCHx 5 i = 9.461806 CU YDx 6 5 Ç • $ 615.02

(total cost)

Concrete Columns

You’re going to pour five Columns, each ofwhich has a Diameter of 3 Feet 4-1/2Inches and a height of 11 Feet 6 Inches.How many Cubic Yards of concrete willyou need for all five Columns?

KEYSTROKE DISPLAY

o o 0.

1. Enter the Diameter of a Circle:3 f 4 i 1 / 2 C

DIA 3 FEET 4-1/2 INCH

2. Find the Surface Area of a Circle:C AREA 8.946176 SQ FEET

3. Find Total Volume:x 1 1 f 6 i =

102.881 CU FEETÇ y 3.810408 CU YDx 5 = 19.05204 CU YD


Complex Concrete Volume

You’re going to pour an odd-shaped patio4-1/2 Inches deep with the dimensionsshown below. First, calculate the total Area(by dividing the drawing into three individualrectangles) and then determine the totalYards of concrete required for this job.

A

BC

27’ 0”

38’2

”

8’ 6”

9’ 0”

4’2”

9’6”

Dgm

-CC

V-1

03


KEYSTROKE DISPLAY

o o 0.

1. Find Area of Part “A” and add to Memory:3 8 f 2 i –

4 f 2 i = 34 FEET 0 INCH

x 2 7 f = 918. SQ FEET

µ M+ 918. SQ FEET

2. Find Area of Part “B” and add to Memory:4 f 2 i 4 FEET 2 INCH

x 8 f 6 i =

35.41667 SQ FEET

µ M+ 35.41667 SQ FEET

3. Find Area of Part “C” and add to Memory:9 f 9 FEET

x 9 f 6 i = 85.5 SQ FEET

µ M+ 85.5 SQ FEET

4. Recall and Clear Total Area Stored inMemory:

® ® M+ 1038.917 SQ FEET

5. Find Total Cubic Yards:x 4 i 1 / 2 = 14.4294 CU YD

M

M

M

M

M

M

M


RIGHT ANGLE / FRAMING

The top row of keys provide you with built-in solutions to Right Triangles. The solu-tions are available in any of the lineardimensions offered on the calculator. Thus,you can solve Right Triangles directly inFeet and Inches, Decimal Feet, Meters,etc.

Any value of a Right Triangle can be foundgiven two of the four variables:

1) Rise, 2) Run, 3) Diagonal or 4) Pitch.

Dgm

-RA

F-1

04


Squaring-Up a Foundation

Square-Up 15 Feet 6 Inch (Run) x 10 Feet2 Inch (Rise):

KEYSTROKE DISPLAY

o o 0.1 5 f 6 i R

RUN 15 FEET 6 INCH

1 0 f 2 i r

RISE 10 FEET 2 INCH

d DIAG 18 FEET 6-7/16 INCH

Pitch — Converting Roof Angle

Find the % Grade, Pitch Ratio/Slope andPitch in Inches if the roof angle is 30.25°:

KEYSTROKE DISPLAY

o o 0.3 0 • 2 5 p PTCH 30.25°p %GRD 58.31828p SLP 0.583183p PTCH 7 INCH

10’2

”

15’ 6”

Square-Up (Diagonal)

Dgm

-SU

D-1

05


Converting Slope

Find the Pitch in Inches, Pitch Degrees,and Percent Grade if the Pitch Ratio/Slope is 0.625:

KEYSTROKE DISPLAY

o o 0.• 6 2 5 Ç p SLP 0.625p PTCH 7-1/2 INCH

p PTCH 32.01°p %GRD 62.5

Common Rafter Length

Find the Point-to-Point Length of theCommon rafter on a 7/12-Pitched roof witha Span of 28 Feet:

KEYSTROKE DISPLAY

o o 0.

1. Enter Pitch:7 i p PTCH 7 INCH

2. Enter half the Span as the Run:2 8 f ÷ 2 = 14 FEET 0 INCH

R RUN 14 FEET 0 INCH

3. Find the Rise:r RISE 8 FEET 2 INCH

4. Find the Length of the Common rafter:d DIAG 16 FEET 2-1/2 INCH


Regular Hip/Valley and Jack Rafters

A roof’s Pitch is 9/12 and half the totalSpan is 6 Feet. Find the lengths of theCommon, Hip/Valley and Jack rafters(Jack rafters at 16 Inch On-Center spacing):

KEYSTROKE DISPLAY

1. Find the Common rafter length:o o 0.6 f R RUN 6 FEET 0 INCH

9 i p PTCH 9 INCH

d (Common) DIAG 7 FEET 6 INCH

(Cont’d)

Dgm

-Raf

t-10

6


(Cont’d)

KEYSTROKE DISPLAY

2. Find the Hip/Valley rafter and Jackrafter lengths:

H H/V 9 FEET 7-1/4 INCH

j JKOC 16 INCH*j JK 1 5 FEET 10 INCH

j JK 2 4 FEET 2 INCH




*Uses standard (default) 16-Inch On-Center. Toenter a new On-Center (e.g., 18 Inches) press 1 8 i Ç 5. Press ® 5 to reviewstored value. This value will remain stored untilyou re-enter a new value or perform a Clear All(Ç x).

STORED


Irregular Hip/Valley

You’re working with a 7/12 Pitch and halfof your overall Span is 15 Feet 7 Inches.The Irregular Pitch is 8/12. Find theCommon rafter length, Irregular Hip/Valleyand Jack rafter lengths.

KEYSTROKE DISPLAY

o o 0.

1. Find Common Rafter Length:7 i p PTCH 7 INCH

1 5 f 7 i R

RUN 15 FEET 7 INCH

d DIAG 18 FEET 0-1/2 INCH

2. Find Irregular Hip Rafter Length:8 i Ç H IPCH 8 INCH

H IH/V 22 FEET 7-3/8 INCH

3. Find Irregular Jack Lengths:Ç j IJOC 16 INCH

j* IJ1 14 FEET 11-13/16 INCH

j IJ2 13 FEET 7 INCH

j IJ3 12 FEET 2-3/16 INCH



Etc... Continue pressing j until last regularJack or “0.” is reached.

* It is not necessary to keep pressing Ç whendisplaying the Irregular Jack sizes.

STORED


Rake-Wall — No Base

Find each stud size in a Rake-Wall with apeak of 3 Feet 6 Inches and a length of 6Feet. Use 16 Inches as your spacing(default):

KEYSTROKE DISPLAY

1. Enter Rise and Run:o o 0.3 f 6 i r RISE 3 FEET 6 INCH

6 f R RUN 6 FEET 0 INCH

2. Find Stud Lengths:∑ RWOC 16 INCH

∑ RW 1 2 FEET 8-11/16 INCH

∑ RW 2 1 FEET 11-5/16 INCH

∑ RW 3 1 FEET 2 INCH

∑ RW 4 0 FEET 4-11/16 INCH

∑ BASE 0 FEET 0 INCH

3. Find Rake-Wall Angle of Incline:∑ RW 30.26°

Note: To enter a base, enter the base heightprior to pressing the ∑ key (e.g., 5 f ∑).

STORED


STAIRS

Stairs — Given Rise and Run

You’re going to build a stairway that has aFloor-to-Floor height of 10 Feet 1 Inch, aRun of 12 Feet 5 Inches, and a desiredRiser Height of 7-1/2 Inches (default). Findthe stair values:

KEYSTROKE DISPLAY

1. Enter Rise and Run:o o 0.1 0 f 1 i r

RISE 10 FEET 1 INCH

1 2 f 5 i R

RUN 12 FEET 5 INCH

(Cont’d)

Dgm

-Sta

irs-1

07


(Cont’d)

KEYSTROKE DISPLAY

2. Recall stored 7-1/2 Inch desired RiserHeight and find stair values:

® s R-HT 7-1/2 INCH

s R-HT 7-9/16 INCH*s RSRS 16.s R+/– 0 INCH

s T-WD 9-15/16 INCH*s TRDS 15.s T+/– 0-1/16 INCH

s STRG 15 FEET 7-5/16 INCH

s INCL 37.27°*A in the display means the calculated RiserHeight or Tread Width is greater than the storeddesired Riser Height or Tread Width.

STORED


Stairs — Given Only the Floor-to-FloorRise; Entering Other Than 7-1/2 InchDesired Riser Height

Find stair values if the Floor-to-Floor Riseis 12 Feet 6 Inches, and the desired RiserHeight is 8 Inches:

KEYSTROKE DISPLAY

1. Enter desired Riser Height and Floor-to-Floor Rise:

o o 0.8 i Ç 7 R-HT 8 INCH

1 2 f 6 i r

RISE 12 FEET 6 INCH

2. Calculate stair values:s R-HT 7-7/8 INCH

s RSRS 19.s R+/– – 0-3/8 INCH

s T-WD 10 INCH

s TRDS 18.s T+/– 0 INCH

s STRG 19 FEET 1-1/8 INCH

s INCL 38.22°s RUN 15 FEET 0 INCH*s RISE 12 FEET 6 INCH

s R-HT 8 INCH

s T-WD 10 INCH

*Note: Run is calculated based on Tread values,as it was not entered. The Total Run of a stair-way is equal to the width of each Tread multi-plied by the number of Treads.

STORED

STORED

STORED

STORED

STORED


Setting Fractional Resolution

Fractional resolution is pemanently set viathe Preference Settings (see PreferenceSettings section for instructions). To selectother formats temporarily (e.g., 1/64ths,1/32nds, etc.), see the example below:

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) 0-23/32 INCH

Ç 4 (1/4) 0-3/4 INCH

Ç 6 (1/64) 0-45/64 INCH

Ç 8 (1/8) 0-3/4 INCH

o o 0.Note: Changing the Fractional Resolution on adisplayed value does not alter your PermanentFractional Resolution Setting. Pressing o willreturn your calculator to the permanently setfractional resolution.

APPENDIX


Default Settings

After a Clear All (Ç x), your calculatorwill return to the following settings:

STORED VALUES DEFAULT VALUE

Stair Riser Height 7-1/2 InchStair Tread Width 10 InchOn-Center Spacing 16 InchWeight per Volume 1.5 Tons/Cu Yd

If you replace your batteries or perform aFull Reset* (press O, hold down x, andpress o), your calculator will return tothe following settings (in addition to thoselisted above):

PREFERENCE SETTINGS DEFAULT VALUE

Fractional Resolution 1/16Area Display StandardVolume Display StandardMeter Linear Display 0.000Decimal Degree Display 0.00°Fractional Mode Standard

*Depressing the Reset button located above thep key will also perform a Full Reset.

Auto-Shut Off

Your calculator will shut itself off afterabout 8-12 minutes of non-use.


Accuracy/Errors

Accuracy/Display Capacity — You may enter or calculate values up to19,999,999.99. Each calculation is carriedout internally to twelve digits.

Errors — When an incorrect entry ismade, or the answer is beyond the rangeof the calculator, it will display the word“ERROR.” To clear an error condition youmust hit the o button once. At this pointyou must determine what caused the errorand re-key the problem.

Error Codes:DISPLAY ERROR TYPE

0FL0 Overflow (too large to display)

DIV Error Divide by 0DIM Error Dimension errorENT Error Entry errorNone Attempt to calculate stairs

without entering Rise andRun

Auto-Range — If an “overflow” is createdbecause of an input and calculation withsmall units that are out of the standardrange of the display, the answer will beautomatically expressed in the next largerunits (instead of showing “ERROR”) —e.g., 20,000,000 mm is shown as 20,000 M.Also applies to Inches, Feet and Yards.


Battery

This model uses one (1) CR2016 battery(included). Should your calculator displaybecome very dim or erratic, replace thebattery.Note: Please use caution when disposing of yourold batteries, as they contain hazardous chemicals.

Replacement batteries are available atmost discount or electronics stores. Youmay also call Calculated Industries at 1-775-885-4900.

Replacing the Battery

Turn the calculator over and open userguide door located at the top. Pull batteryholder out (top left corner) and turn over.Remove old battery and slide new batteryunder tabs. Turn holder over (negative sidefacing you) and insert into calculator.

Reset

If your calculator should ever “lock up,”press Reset — a small hole located abovethe p key — to perform a total reset.


AREA AND VOLUME FORMULAS

Area Formulas

Dgm

-AF

-100


Volume FormulasD

gm-V

F-1

01


REPAIR AND RETURN

Warranty, Repair and ReturnInformation

Return Guidelines

1. Please read the Warranty in thisUser's Guide to determine if yourCalculated Industries product remainsunder warranty before calling orreturning any device for evaluation orrepairs.

2. If your product won't turn on, checkthe battery as outlined in the User'sGuide.

3. If you need more assistance, pleasego to the website listed below.

4. If you believe you need to return yourproduct, please call a CalculatedIndustries representative between thehours of 8:00am to 4:00pm PacificTime for additional information and aReturn Merchandise Authorization(RMA).

Call Toll Free: 1-800-854-8075

Outside USA: 1-775-885-4900

www.calculated.com/warranty


WARRANTY

Warranty Repair Service – U.S.A.Calculated Industries (“CI”) warrants this product againstdefects in materials and workmanship for a period of one(1) year from the date of original consumer purchase inthe U.S. If a defect exists during the warranty period, CIat its option will either repair (using new or remanufac-tured parts) or replace (with a new or remanufacturedcalculator) the product at no charge.

THE WARRANTY WILL NOT APPLY TO THE PRODUCTIF IT HAS BEEN DAMAGED BY MISUSE, ALTERATION,ACCIDENT, IMPROPER HANDLING OR OPERATION,OR IF UNAUTHORIZED REPAIRS ARE ATTEMPTEDOR MADE. SOME EXAMPLES OF DAMAGES NOTCOVERED BY WARRANTY INCLUDE, BUT ARE NOTLIMITED TO, BATTERY LEAKAGE, BENDING, A“BLACK INK SPOT” OR VISIBLE CRACKING OF THELCD, WHICH ARE PRESUMED TO BE DAMAGESRESULTING FROM MISUSE OR ABUSE.

To obtain warranty service in the U.S., please go to thewebsite.

A repaired or replacement product assumes the remain-ing warranty of the original product or 90 days, whicheveris longer.

Non-Warranty Repair Service – U.S.A.Non-warranty repair covers service beyond the warrantyperiod, or service requested due to damage resultingfrom misuse or abuse.

Contact Calculated Industries at the number listed on theback cover to obtain current product repair informationand charges. Repairs are guaranteed for 90 days.

Repair Service – Outside the U.S.A.To obtain warranty or non-warranty repair service forgoods purchased outside the U.S., contact the dealerthrough which you initially purchased the product. If youcannot reasonably have the product repaired in yourarea, you may contact CI to obtain current product repairinformation and charges, including freight and duties.


Disclaimer

CI MAKES NO WARRANTY OR REPRESENTATION,EITHER EXPRESS OR IMPLIED, WITH RESPECT TOTHE PRODUCT’S QUALITY, PERFORMANCE, MER-CHANTABILITY, OR FITNESS FOR A PARTICULARPURPOSE. AS A RESULT, THIS PRODUCT, INCLUD-ING BUT NOT LIMITED TO, KEYSTROKE PROCE-DURES, MATHEMATICAL ACCURACY AND PREPRO-GRAMMED MATERIAL, IS SOLD “AS IS,” AND YOUTHE PURCHASER ASSUME THE ENTIRE RISK AS TOITS QUALITY AND PERFORMANCE.

IN NO EVENT WILL CI BE LIABLE FOR DIRECT, INDI-RECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIALDAMAGES RESULTING FROM ANY DEFECT IN THEPRODUCT OR ITS DOCUMENTATION.

The warranty, disclaimer, and remedies set forth aboveare exclusive and replace all others, oral or written,expressed or implied. No CI dealer, agent, or employeeis authorized to make any modification, extension, oraddition to this warranty.

Some states do not allow the exclusion or limitation ofimplied warranties or liability for incidental or consequen-tial damages, so the above limitation or exclusion maynot apply to you. This warranty gives you specific rights,and you may also have other rights, which vary fromstate to state.


FCC CLASS B

This equipment has been certified to com-ply with the limits for a Class B computingdevice, pursuant to Subpart J of Part 15 ofFCC rules.

LOOKING FOR NEW IDEAS

Calculated Industries, a leading manufac-turer of special-function calculators anddigital measuring instruments, is alwayslooking for new product ideas in theseareas.

If you have an idea, or a suggestion forimproving this product or User's Guide,please submit your comments online atwww.calculated.com under “Contact Us,”“Product Idea Submittal Agreement”.Thank you.

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