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C
ONSTRUCTION
M
ASTER ™
5
En Español
ADVANCED FEET-INCH-FRACTION CALCULATOR
Model 4054
Pocket Reference Guide
Direction
This Insert
C
ONSTRUCTION
M
ASTER
TM
5
v 3.1
The Construction Master 5 calculator helps you save time, cut costly errors and build like a pro!
Quickly Solve:
• Feet-Inches-Fractions, Yards, Metric
Dimensional Problems and Conversions
• Problems Involving All Fractions
— 1/2-1/64ths!
• Areas, Volumes and Weights
• Circle/Arc Calculations
• Common, Hip/Valley, Jack Rafter
Lengths (Regular and Irregular)
• Rake-Wall Solutions
• Concrete, Flooring Quantity
• Roofing Materials
• Squaring-Up
• Stair Layout Solutions, and more!
TABLE OF CONTENTS
GETTING STARTED ...............................1
KEY DEFINITIONS/FUNCTIONS..........1
Basic Function Keys ............................1
Dimension Keys...................................2
Arc/Circle Keys ....................................4
Right Triangle/Roof Framing Keys ......4
Stair Layout Key ..................................7
Stair Settings .......................................8
Miscellaneous Functions .....................8
PAPERLESS TAPE EXAMPLE ...........10
PREFERENCE SETTINGS .................11
ENTERING DIMENSIONS ..................13
Linear Dimensions .............................13
Square and Cubic Dimensions..........13
Linear Conversions............................14
Square and Cubic Conversions.........15
BASIC MATH OPERATIONS ..............15
EXAMPLES ...........................................16
Adding and Subtracting Strings of
Dimensions.....................................16
Multiplying Dimensions ......................16
Dividing Dimensions ..........................17
Percent Calculations..........................17
Square Area.......................................18
Rectangular Area and Volume...........18
Entering Square and Cubic and
Adding a Waste Allowance .............19
Weight Conversions ..........................19
Weight per Volume ............................20
Using the Memory .............................21
Board Feet and Cost .........................22
Carpentry — Calculating Number of Studs ..........................................22
Baluster Spacing ...............................23
Circle Area and Circumference .........24
Arc Angle or Degree ..........................24
Concrete Volume for Driveway ..........25
Concrete Columns .............................25
Complex Concrete Volume................26
RIGHT ANGLE/FRAMING ...................28
Squaring-Up a Foundation ................29
Pitch — Converting Roof Angle .........29
Converting Slope ...............................30
Common Rafter Length .....................30
Regular Hip/Valley and Jack
Rafters ............................................31
Irregular Hip/Valley ............................33
Rake-Wall — No Base .......................34
STAIRS ................................................35
Stairs — Given Rise and Run ...........35
Stairs — Given Only the Floor-to-Floor
Rise; Entering Other Than 7-1/2 Inch
Desired Riser Height ......................37
APPENDIX ............................................38
Setting Fractional Resolution.............38
Default Settings .................................39
Auto-Shut Off .....................................39
Accuracy/Errors .................................40
Battery ...............................................41
Replacing the Battery ........................41
Reset .................................................41
AREA AND VOLUME FORMULAS .....42
REPAIR AND RETURN .......................44
WARRANTY ........................................45
FCC CLASS B .....................................47
LOOKING FOR NEW IDEAS ..............47
GETTING STARTED
KEY DEFINITIONS / FUNCTIONS
Basic Function Keys
+ – x
÷ =
0 – 9 and •
%
O o
Ç
√
Ç √
Arithmetic operation keys.
Keys used for entering numbers.
Percent Key — Four-function (+, –, x, ÷) percent key.
Off Key — Turns all power off, clearing all non-permanent registers.
On/Clear Key — Turns on power. Pressing once clears the display. Pressing twice clears all temporary values.
Convert Key — Used with the dimensional keys to convert between dimensions or with other keys to access special functions.
Square Root Key — Used to find the Square Root of a non-dimensional or area value.
x 2 Function — Finds the
Square of a linear or nondimensional value.
P
OCKET
R
EFERENCE
G
UIDE
— 1
®
μ
Ç μ
Ç ®
® ®
Recall Key — Used with other keys to recall stored values and settings.
Memory Key — Adds the displayed value to Memory.
Clears when the calculator is shut off.
Memory Minus (M–) —
Subtracts the displayed value from Memory.
Memory Clear — Clears
Memory without changing current display.
Memory Clear — Clears
Memory and displays
Memory Total.
Dimension Keys y f
Yards Key — Enters or converts to Yards .
Feet Key — Enters or converts to Feet as whole or decimal numbers. Also used with the i and / keys for entering Feet-Inch values (e.g., 6 f 9 i
1 / 2 ). Repeated presses during conversions toggle between Fractional and
Decimal Feet.
P
OCKET
R
EFERENCE
G
UIDE
— 2
i
/ m c
M b
Inch Key — Enters or converts to Inches . Entry can be whole or decimal numbers. Also used with the / key for entering fractional inch values (e.g., 9 i 1
/ 2 ). Repeated presses during conversions toggle between Fractional and
Decimal Inches.
Fraction Bar Key — Used to enter Fractions . Fractions can be entered as proper
(1/2, 1/8, 1/16) or improper
(3/2, 9/8). If the denominator (bottom) is not entered, the calculator's fractional accuracy setting is automatically used.
Meters Key — Enters or converts to Meters .
Centimeters Key — Enters or converts to Centimeters .
Millimeters Key — Enters or converts to Millimeters .
Board Feet Key — Enters or converts Cubic values to
Board Feet. One Board
Foot is equal to 144 Cubic
Inches.
P
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R
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G
UIDE
— 3
w Weight Key — Enters or converts (a volume value) to Tons, Pounds, Metric
Tons or Kilograms .
Repeated presses will cycle through these units.
Arc/Circle Keys
C
Ç C
Circle Key — Calculates
Circle Area and
Circumference based on entered Diameter.
Arc — Calculates Arc
Length or Degree based on entered Diameter and Arc
Degree or Length (e.g., if
Arc Degree is entered, it will calculate Arc Length, and vice versa).
Right Triangle/Roof Framing Keys p Pitch Key — This key is used to enter or calculate the Pitch (Slope) of a roof
(or Right Triangle). Pitch is the amount of “Rise” over
12 Inches of “Run.” Pitch may be entered as:
P
OCKET
R
EFERENCE
G
UIDE
— 4
Ç p r
R d
H a Dimension an Angle
9 i p
3 0 p a Ratio 0 • 7 5 Ç p a Percentage 7 5 % p
A Pitch entry will remain in permanent storage until revised or reset. A solution will be replaced by its entered value once the calculator is cleared.
Enters Pitch Ratio (e.g., •
5 8 3 Ç p ).
Rise Key — Enters or calculates the Rise or vertical leg (height) of a Right
Triangle.
Run Key — Enters or calculates the Run or horizontal leg (base) of a Right
Triangle.
Diagonal Key — Enters or calculates the common or
Diagonal leg (Hypotenuse) of a Right Triangle. Typical applications are “squaring” slabs or finding common rafter lengths.
Hip/Valley Key —
Calculates length of the
Regular or Irregular Hip/
Valley rafter.
P
OCKET
R
EFERENCE
G
UIDE
— 5
Ç H j
Ç j
∑
Irregular Pitch — Enters
Irregular Pitch used to calculate lengths of the
Irregular Hip/Valley and
Jack rafters.
Jack Key — Calculates
Jack rafter lengths on the
Regular -pitched roof side.
Irregular Jack — Calculates
Jack rafter lengths on the
Irregular -pitched roof side.
Rake-Wall Key — Finds the stud sizes based on entered Right Triangle values and the stored On-
Center spacing. If a dimensional value is entered before pressing ∑ , that value is considered the base and will be added to the stud lengths.
P
OCKET
R
EFERENCE
G
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— 6
Stair Layout Key s Stair Key — Given Rise and/or Run and entered/ stored variables, calculates or displays:
7
8
9
10
11
4
5
6
2
3
Press Result
1 Riser Height
Number of Risers
Riser Overage/
Underage
Tread Width
Number of Treads
Tread Overage/
12
Underage
Stringer Length
Angle of Incline
Stored Run
Stored Rise
Stored Desired
Riser Height
Stored Desired
Tread Width
STAIR DEFAULT VALUES
• 7-1/2” Desired Riser Height
• 10” Desired Tread Width
P
OCKET
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G
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— 7
Stair Settings
You may set “desired Riser height” and
“desired Tread width” to any value by using the following keys:
Ç 7
Ç 9
Riser Height — Stores a desired Riser height other than 7-1/2” (default) . For example, enter 8 Inches:
8 i Ç 7 .
Tread Width — Stores a desired Tread width other than 10” (default) . For example, enter 12 Inches:
1 2 i Ç 9 .
Miscellaneous Functions
B
Ç ÷
Ç x
Ç –
Ç +
Backspace Key to delete entries one keystroke at a time (unlike the o function, which deletes the entire entry).
1/x — Finds the reciprocal of a number (e.g., 8 Ç
÷ 0.125
).
Clear All — Returns all stored values to the default settings. (Does not affect
Preference Settings.)
(+/–) Toggle
Pi ( π ) 3.141593
— Used
P
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R
EFERENCE
G
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— 8
Ç √
√ x 2 — Squares the value in the display.
Square Root Key — Used to find the Square Root of a non-dimensional or area value.
Ç • Total Cost — Based on entry of per unit cost.
Ç 0 Store Weight per Volume
— Stores a new Weight per
Volume value as listed below:
Note: After entering a value and pressing Ç 0 , continue pressing the 0 digit key until you’ve reached the desired
Weight per Volume format. To recall your setting, press ® 0 .
• Ton Por YD CUB
• LB Por YD CUB
• LB Por PIES CUB
• MET Ton Por M CUB
• kG Por M CUB
Ç 5
This value is stored until you change it or perform a
Clear All ( Ç x ).
On-Center Spacing (o.c.)
— Stores a new on-center spacing (e.g., 2 4 i
Ç 5 ). The value is used for jack and rake wall stud calculations. Default is 16”.
P
OCKET
R
EFERENCE
G
UIDE
— 9
® = Paperless Tape – Useful for checking figures, as it scrolls through your past 20 entries or calculations.
Press ® = to access
Paperless Tape mode.
Press + or – to scroll forward or backward. Press = to exit mode and continue with a new entry or calculation. See example below.
PAPERLESS TAPE EXAMPLE
Add 6 Feet, 5 Feet and 4 Feet, then access the paperless tape mode and scroll back through your entries. Then, back up one entry, exit the tape mode and add 10 Feet to the total.
KEYSTROKE o o
6 f +
5 f +
4 f =
® =
+
+
+
–
=
+ 1 0 f =
DISPLAY
0.
6
PIES
0
PULG
11
PIES
0
PULG
15
PIES
0
PULG
TTL= 15
PIES
0
PULG
01 6
PIES
0
PULG
02 + 5
PIES
0
PULG
03 + 4
PIES
0
PULG
02 + 5
PIES
0
PULG
TTL= 15
PIES
0
PULG
25
PIES
0
PULG
P
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R
EFERENCE
G
UIDE
— 10
PREFERENCE SETTINGS
Press Ç , then % , then keep pressing % to toggle through the main settings. Press the + key to advance within sub-setting.
Use the – key to back up. Press o key to exit Preferences.
+
+
+
+
PRESS
Ç AND:
First press of % :
SETTING--FUNCTION
+
+
+
+
+
+
+
+
+
+
Second press of % :
Fractional Resolution:
-1/16
-1/32
-1/64
-1/2
-1/4
-1/8
-1/16 (repeats options)
Area Displays:
-ESTANDR
-0.
PIES CUAD
-0.
YD CUAD
-0.
M CUAD
-ESTANDR (repeats options)
Third press of % : Volume Displays:
-ESTANDR
-0.
YD CUB
-0.
PIES CUB
-0.
M CUB
-ESTANDR (repeats options)
(Cont’d)
P
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— 11
(Cont’d)
PRESS : SETTING--FUNCTION
Fourth press of % :
+
+
Meter Linear Displays:
-0.000
M
-FLOTNTE
M
(floating point)
-0.000
M
(repeats options)
Fifth press of % :
+
+
Decimal Degree Displays:
-0.00º
-FLOTNTE (floating point)
-0.00º (repeats options)
Sixth press of % :
+
+
Fractional Mode:
-ESTANDR
-CONST
-ESTANDR (repeats options)
P
OCKET
R
EFERENCE
G
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— 12
ENTERING DIMENSIONS
Linear Dimensions
When entering Feet-Inch values, enter dimensions from largest to smallest —
Feet before Inches, Inches before
Fractions. Enter Fractions by entering the numerator (top number), pressing /
(Fraction Bar key) and then the denominator (bottom number).
Note: If a denominator is not entered, the fractional setting value is used.
Examples of how linear dimensions are entered (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 Cubic dimensions are entered (press o after each 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
P
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R
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G
UIDE
— 13
Linear Conversions
Convert 10 Feet 6 Inches:
KEYSTROKE o o
1 0 f 6 i
Ç y
Ç i
Ç m
Ç c
Ç M
DISPLAY
0.
10
PIES
6
PULG
3.5
YD
126
PULG
3.200
M
320.04
CM
3200.4
MM
Convert 14 Feet 7-1/2 Inches to Decimal
Feet:
KEYSTROKE DISPLAY o o
1 4 f 7 i 1 / 2
0.
14
PIES
7-1/2
PULG
Ç f 14.625
PIES
Convert 22.75 Feet to Feet-Inches:
KEYSTROKE o o
2 2 • 7 5 f
Ç f
DISPLAY
0.
22.75
PIES
22
PIES
9
PULG
P
OCKET
R
EFERENCE
G
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— 14
Square and Cubic Conversions
Convert 14 Square Feet to Square Yards:
KEYSTROKE o o
1 4 f f
Ç y
DISPLAY
0.
14
PIES CUAD
1.555556
YD CUAD
(1.6 square yards)
Convert 25 Square Yards to Square Feet:
KEYSTROKE o o
2 5 y y
Ç f
DISPLAY
0.
25
YD CUAD
225.
PIES CUAD
Convert 12 Cubic Feet to Cubic Yards:
KEYSTROKE o o
1 2 f f f
Ç y
BASIC MATH OPERATIONS
DISPLAY
0.
12
PIES CUB
0.444444
YD CUB
Your calculator uses standard chaining logic, which simply means that you enter your first value, the operator ( + , – , x ,
÷ ), the second value and then the Equals sign ( = ).
A.
3 + 2 = 5.
B.
3 – 2 = 1.
C.
3 x 2 = 6.
D.
3 ÷ 2 = 1.5
This feature also makes the calculator simple to use for dimensional applications.
P
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R
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— 15
EXAMPLES
Adding and Subtracting Strings of
Dimensions
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
6 f 2 i 1 / 2 +
0.
6
PIES
2-1/2
PULG
1 1 f 5 i 1 / 4 +
17
PIES
7-3/4
PULG
1 8 • 2 5 i = 19
PIES
2
PULG
– 2 i 1 / 8 = 18
PIES
11-7/8
PULG
Multiplying Dimensions
What is the perimeter of a room with three walls which measure 15 Feet 3-3/4 Inches each?
KEYSTROKE DISPLAY
3 x 1 5 f 3 i 3 / 4 =
45
PIES
11-1/4
PULG
Multiply 5 Feet 3 Inches by 11 Feet 6-1/2
Inches:
KEYSTROKE DISPLAY
5 f 3 i x 1 1 f
6 i 1 / 2 = 60.59375
PIES CUAD
P
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R
EFERENCE
G
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— 16
Dividing Dimensions
Divide 15 Feet 3-3/4 Inches into thirds
(divide by 3):
KEYSTROKE DISPLAY o o
1 5 f 3 i 3 / 4 ÷ 3 =
0.
5
PIES
1-1/4
PULG
How many 3-Foot 6-Inch pieces can you cut 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 Cubic
Yards:
KEYSTROKE DISPLAY o o
2 • 7 8 y y y + 1 0 %
0.
3.058
YD CUB
What is 25% of $1,575?
KEYSTROKE o o
1 5 7 5 x 2 5 %
DISPLAY
0.
393.75
P
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R
EFERENCE
G
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— 17
Square Area
Find the Area of a square room with sides measuring 15 Feet 8-1/2 Inches:
KEYSTROKE DISPLAY o o
1 5 f 8 i 1 / 2 Ç √ (x 2 )
0.
246.7517
PIES CUAD
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 Width to find the Area. Then, multiply the Area times the Height to find the Volume:
KEYSTROKE DISPLAY o o
2 0 f 6 i 1 / 2 x
0.
20
PIES
6-1/2
PULG
1 2 f 8 i 1 / 2 x
261.0503
PIES CUAD
1 0 i = 8.057109
YD CUB
Convert to Feet:
Ç f 217.542
PIES CUB
P
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R
EFERENCE
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— 18
Entering Square and Cubic and Adding a Waste Allowance
Add a 10% waste allowance to 55 Square
Feet. Then add a 20% waste allowance to
150 Cubic Feet:
KEYSTROKE DISPLAY o o 0.
5 5 f f + 1 0 % 60.5
PIES CUAD
1 5 0 f f f + 2 0 %
180.
PIES CUB
Weight Conversions
Convert 150 Pounds to other weights
(Tons, Metric Tons, Kilograms):
KEYSTROKE DISPLAY o o
1 5 0 w w *
Ç w w w
0.
150
LB
0.068039
MET Ton
68.03886
0.075 kG
Ton
*Calculator may not display Pounds upon first press of w ; it depends on which unit was accessed last. So press w until LB (or desired unit) is displayed, then convert.
P
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R
EFERENCE
G
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— 19
Weight per Volume
Convert 20 Cubic Yards of concrete to
Tons, Pounds, Metric Tons and Kilograms, if concrete weighs 1.5 Tons per Cubic
Yard (default value):
KEYSTROKE o o
2 0 y y y
Ç w w w w
DISPLAY
0.
20
YD CUB
30.
Ton
*
60000.
LB
27.21554
MET Ton
27215.54 kG
Now convert the above, if concrete weighs
2 Tons per Cubic Yard (store new Weight per Volume value):
KEYSTROKE DISPLAY
2 Ç 0
GUARD
2 0 y y y
Ç w w w w
Ç x
2.
T on
P or
20
YD CUB
YD CUB
36287.39
40. kG
80000.
36.28739
Ton
LB
MET Ton
TODO BORRADO
(Clear stored Wt/Vol)
*
*Calculator will present values in a different order based on previous computation; simply continue to press w key until desired value is displayed.
P
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R
EFERENCE
G
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— 20
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 only when you:
1) turn off the calculator;
2) press ® ® ;
3) press Ç ® ;
4) press Ç x (Clear All) .
When memory is recalled ( ® μ ), consecutive presses of μ will display the calculated average and total count of the accumulated values.
Example:
KEYSTROKE
3 5 5 μ
2 5 5 μ
7 4 5 Ç μ (M-)
® μ
TTL
μ
μ
® ®
DISPLAY
M
+ 355.
M
GUARD
M
+ 255.
M
- 745.
PROM
M
M
– 135.
– 45.
M
M
CUEN
3.
M
M
+ – 135.
P
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R
EFERENCE
G
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— 21
Board Feet and Cost
Find the total Board Feet for the following boards: 2x4x16, 2x10x18 and 2x12x20.
What is the total cost at $275 per Mbm*?
*Per thousand Board Foot measure
KEYSTROKE DISPLAY o o
2 x 4 x 1 6 b μ
P-MD 10.66667
2 x 1 0 x 1 8 b μ
P-MD 30.
2 x 1 2 x 2 0 b μ
P-MD 40.
® ® x 2 7 5 Ç •
M
M
M
P-MD 80.66667
$ 22.
0.
18
Carpentry — Calculating Number of Studs
Find the number of 16-Inch On-Center studs needed for an 18 Feet 7-1/2 Inch wall.
KEYSTROKE DISPLAY
1. Divide Length by spacing: o o
1 8 f 7 i 1 / 2
0.
18
PIES
7-1/2
PULG
÷ 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.
P
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R
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— 22
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 balusters to be about 4
Inches. If each baluster is 1-1/2 Inches wide, what is the exact spacing between each baluster?
KEYSTROKE DISPLAY
1. Estimate number of balusters in Span: o o
1 5 6 i ÷
5 i 1 / 2 = *
156
0.
PULG
28.36364
(28 balusters)
*desired spacing plus baluster width (4 Inches plus
1-1/2 Inch)
2. Find total space ‘occupied’ by the balusters by multiplying the width of each baluster by the rounded number of balusters
(found above):
1 i 1 / 2 x
2 8 =
1-1/2
42
PULG
PULG
3. Find total space between all balusters:
1 5 6 i –
4 2 i =
156
PULG
114
PULG
4. Find actual baluster spacing by dividing total space between all balusters by the number of spaces between the balusters
(number of balusters plus one equals 29):
1 1 4 i ÷
2 9 =
114
3-15/16
PULG
PULG
P
OCKET
R
EFERENCE
G
UIDE
— 23
Circle Area and Circumference
Find the Area and Circumference of a
Circle with a Diameter of 25 Inches:
KEYSTROKE DISPLAY o o
2 5 i C
C
C
0.
DIA 25
PULG
AREA 490.8739
PULG CUAD
CIRC 78-9/16
PULG
Arc Angle or Degree
Find the Arc Angle (or Degree of Arc), given a 5-Foot Diameter and an Arc
Length of 3 Feet 3 Inches:
KEYSTROKE
2. Find Degree of Arc:
Ç C
DISPLAY
1. Enter Circle Diameter and Arc Length: o o
5 f C
3 f 3 i
DIA 5
3
PIES
PIES
0
3
0.
PULG
PULG
ARCO 74.48°
P
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R
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G
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— 24
Concrete Volume for Driveway
Calculate the Cubic Yards of concrete required to pour a driveway that measures: 45 Feet 5 Inches long x 13 Feet 6
Inches wide x 5 Inches deep. If concrete is
$65 per Cubic Yard, what will it cost?
KEYSTROKE o o
4 5 f 5 i x 1 3 f 6 i x 5 i = x 6 5 Ç •
DISPLAY
0.
45
PIES
5
PULG
13
PIES
6
PULG
9.461806
YD CUB
$ 615.
02
(total cost)
Concrete Columns
You’re going to pour five Columns, each of which has a Diameter of 3 Feet 4-1/2
Inches and a height of 11 Feet 6 Inches.
How many Cubic Yards of concrete will you need for all five Columns?
KEYSTROKE DISPLAY
1. Enter the Diameter of a Circle: o o
3 f 4 i 1 / 2 C
0.
DIA 3
PIES
4-1/2
PULG
2. Find the Surface Area of a Circle:
C AREA 8.946176
PIES CUAD
3. Find Total Volume: x 1 1 f 6 i =
102.881
PIES CUB
Ç y x 5 =
3.810408
19.05204
YD CUB
YD CUB
P
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R
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G
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— 25
Complex Concrete Volume
You’re going to pour an odd-shaped patio
4-1/2 Inches deep with the dimensions shown below. First, calculate the total Area
(by dividing the drawing into three individual rectangles) and then determine the total
Yards of concrete required for this job.
27’ 0”
A
B
8’ 6”
C
9’ 0”
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KEYSTROKE DISPLAY
1. Find Area of Part “A” and add to Memory: o o
3 8 f 2 i –
4 f 2 i = x 2 7 f =
μ
34
PIES
918.
0
M+ 918.
PIES CUAD
0.
PULG
PIES CUAD
M
2. Find Area of Part “B” and add to Memory:
4 f 2 i x 8 f 6 i =
μ
4
PIES
M+ 35.41667
2
PULG
35.41667
PIES CUAD
PIES CUAD
M
M
M
3. Find Area of Part “C” and add to Memory:
9 f x 9 f 6 i = 85.5
PIES CUAD
μ
9
PIES
M+ 85.5
PIES CUAD
M
M
M
4. Recall and Clear Total Area Stored in
Memory:
® ® M+ 1038.917
PIES CUAD
5. Find Total Cubic Yards: x 4 i 1 / 2 = 14.4294
YD CUB
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RIGHT ANGLE / FRAMING
The top row of keys provide you with built-in solutions to Right Triangles. The solutions are available in any of the linear dimensions offered on the calculator. Thus, you can solve Right Triangles directly in Feet and
Inches, Decimal Feet, Meters, etc.
Any value of a Right Triangle can be found given two of the four variables:
1) Rise, 2) Run, 3) Diagonal or 4) Pitch.
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Squaring-Up a Foundation
Square-Up (Diagonal)
15’ 6”
Square-Up 15 Feet 6 Inch (Run) x 10 Feet
2 Inch (Rise):
KEYSTROKE DISPLAY o o
1 5 f 6 i R
0.
RECR 15
PIES
6
PULG
1 0 f 2 i r d
ALT 10
PIES
2
PULG
DIAG 18
PIES
6-7/16
PULG
Pitch — Converting Roof Angle
Find the % Grade, Pitch Ratio/Slope and
Pitch in Inches if the roof angle is 30.25°:
KEYSTROKE o o
3 0 • 2 5 p p p p
DISPLAY
0.
PEND 30.25°
PND% 58.31828
DECL 0.583183
PEND 7
PULG
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Converting Slope
Find the Pitch in Inches, Pitch Degrees, and Percent Grade if the Pitch Ratio/Slope is 0.625:
KEYSTROKE o o
• 6 2 5 Ç p p p p
Common Rafter Length
DISPLAY
0.
DECL 0.625
PEND 7-1/2
PULG
PEND 32.01°
PND% 62.5
Find the Point-to-Point Length of the
Common rafter on a 7/12-Pitched roof with a Span of 28 Feet:
KEYSTROKE DISPLAY
1. Enter Pitch: o o
7 i p PEND 7
0.
PULG
2. Enter half the Span as the Run:
2 8 f ÷ 2 =
R
14
PIES
0
PULG
RECR 14
PIES
0
PULG
3. Find the Rise: r ALT 8
PIES
2
PULG
4. Find the Length of the Common rafter: d DIAG 16
PIES
2-1/2
PULG
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Regular Hip/Valley and Jack Rafters
A roof’s Pitch is 9/12 and half the total
Span is 6 Feet. Find the lengths of the
Common, Hip/Valley and Jack rafters
(Jack rafters at 16 Inch On-Center spacing):
KEYSTROKE DISPLAY
1. Find the Common rafter length: o o
6 f R RUN 6
PIES
0
0.
PULG
9 i p PEND 9
PULG d (Common) DIAG 7
PIES
6
PULG
(Cont’d)
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(Cont’d)
KEYSTROKE DISPLAY
2. Find the Hip/Valley rafter and Jack rafter lengths:
H j j j j j j
LIMA 9
PIES
GUARD
CC 1 5
PIES
10
PULG
CC 2 4
PIES
2
PULG
CC 3 2
PIES
6
PULG
CC 4 0
7-1/4
PIES
CC 5 0
PIES
10
0
PULG
PULG
PULG
*Uses standard (default) 16-Inch On-Center. To enter a new On-Center (e.g., 18 Inches) press
1 8 i Ç 5 . Press ® 5 to review stored value. This value will remain stored until you reenter a new value or perform a Clear All ( Ç x ) .
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Irregular Hip/Valley
You’re working with a 7/12 Pitch and half of your overall Span is 15 Feet 7 Inches.
The Irregular Pitch is 8/12. Find the
Common rafter length, Irregular Hip/Valley and Jack rafter lengths.
KEYSTROKE DISPLAY
1. Find Common Rafter Length: o o
7 i p PEND 7
0.
PULG
1 5 f 7 i R
RECR 15
PIES
7
PULG d DIAG 18
PIES
0-1/2
PULG
2. Find Irregular Hip Rafter Length:
8 i Ç H
H LIMA 22
IPND 8
FEET
7-3/8
INCH
INCH
3. Find Irregular Jack Lengths:
Ç j j * j j j j
ICEC
IC 1 14
GUARD
PIES
IC 2 13
IC 3 12
PIES
IC 4 10
IC 5 9
16
11-13/16
PIES
PIES
PIES
7
2-3/16
9-3/8
4-1/2
PULG
PULG
PULG
PULG
PULG
PULG
Etc... Continue pressing j until last regular
Jack or “0.” is reached.
* It is not necessary to keep pressing Ç when displaying the Irregular Jack sizes.
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Rake-Wall — No Base
Find each stud size in a Rake-Wall with a peak of 3 Feet 6 Inches and a length of 6
Feet. Use 16 Inches as your spacing
(default):
KEYSTROKE DISPLAY
1. Enter Rise and Run: o o
3 f 6 i r
6 f R
0.
ALT 3
PIES
6
PULG
RECR 6
PIES
0
PULG
2. Find Stud Lengths:
∑
∑
∑
∑
∑
∑
PD 1 2
PD 2 1
PD 3 1
PD 4 0
GUARD
PIES
PIES
PIES
8-11/16
11-5/16
PIES
2
4-11/16
BASE 0
PIES
0
PULG
PULG
PULG
PULG
PULG
3. Find Rake-Wall Angle of Incline:
∑ INCL 30.26°
Note: To enter a base, enter the base height prior to pressing the ∑ key ( e.g., 5 f ∑ ).
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STAIRS
Stairs — Given Rise and Run
You’re going to build a stairway that has a
Floor-to-Floor height of 10 Feet 1 Inch, a
Run of 12 Feet 5 Inches, and a desired
Riser Height of 7-1/2 Inches (default). Find the stair values:
KEYSTROKE DISPLAY
1. Enter Rise and Run: o o
1 0 f 1 i r
0.
ALT 10
PIES
1
PULG
1 2 f 5 i R
RECR 12
PIES
5
PULG
(Cont’d)
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(Cont’d)
KEYSTROKE DISPLAY
2. Recall stored 7-1/2 Inch desired Riser
Height and find stair values:
® s C-AL
GUARD s s s s s s s s
C-AL
7-1/2
7-9/16
PULG
CHUE 16.
C+/– 0
H-AN 9-15/16
PIES
*
*
HUE 15.
H+/– 0-1/16
LRGO 15 7-5/16
PULG
PULG
PULG
PULG
INCL 37.27°
*A in the display means the calculated Riser
Height or Tread Width is greater than the stored desired Riser Height or Tread Width.
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Stairs — Given Only the Floor-to-Floor
Rise; Entering Other Than 7-1/2 Inch
Desired Riser Height
Find stair values if the Floor-to-Floor Rise is 12 Feet 6 Inches, and the desired Riser
Height is 8 Inches:
KEYSTROKE DISPLAY
1. Enter desired Riser Height and Floor-to-
Floor Rise: o o
8 i Ç 7 C-AL
1 2 f 6 i r
GUARD
8
0.
PULG
ALT 12
PIES
6
PULG
2. Calculate stair values: s s s s s s s s s s s s
LRGO 19
GUARD
C-AL 7-7/8
PULG
GUARD
PIES
RECR 15
C-AL
CHUE 19.
C+/– – 0-3/8
H+/– 0
1-1/8
PIES
GUARD
0
PULG
HUE 18.
PULG
PULG
INCL 38.22°
PULG
8
*
PULG
*Note: Run is calculated based on Tread values, as it was not entered. The Total Run of a stairway is equal to the width of each Tread multiplied by the number of Treads.
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APPENDIX
Setting Fractional Resolution
Fractional resolution is pemanently set via the Preference Settings (see Preference
Settings section for instructions). To select other 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
4 4 / 6 4
+ 1 / 6 4 =
Ç 1 (1/16)
Ç 2 (1/2)
Ç 3 (1/32)
Ç 4 (1/4)
Ç 6 (1/64)
Ç 8 (1/8) o o
0-44/64
0-45/64
0-11/16
0-1/2
0-23/32
0-3/4
0-45/64
0-3/4
0.
PULG
PULG
PULG
PULG
PULG
PULG
PULG
PULG
0.
Note: Changing the Fractional Resolution on a displayed value does not alter your Permanent
Fractional Resolution Setting. Pressing o will return your calculator to the permanently set fractional resolution.
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Default Settings
After a Clear All ( Ç x ), your calculator will return to the following settings:
STORED VALUES
Stair Riser Height
Stair Tread Width
On-Center Spacing
Weight per Volume
DEFAULT VALUE
7-1/2 pulgadas
10 pulgadas
16 pulgadas
1.5 ton/yds cú.
If you replace your batteries or perform a
Full Reset * (press O , hold down x , and press o ), your calculator will return to the following settings (in addition to those listed above):
PREFERENCE SETTINGS
Fractional Resolution
Area Display
Volume Display
Meter Linear Display
Decimal Degree Display
Fractional Mode
DEFAULT VALUE
1/16
Estándar
Estándar
0.000
0.00°
Estándar
*Depressing the Reset button located above the p key will also perform a Full Reset.
Auto-Shut Off
Your calculator will shut itself off after about 8-12 minutes of non-use.
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Accuracy/Errors
Accuracy/Display Capacity —
You may enter or calculate values up to
19,999,999.99. Each calculation is carried out internally to twelve digits.
Errors — When an incorrect entry is made, or the answer is beyond the range of the calculator, it will display the word
“ERROR.” To clear an error condition you must hit the o button once. At this point you must determine what caused the error and re-key the problem.
Error Codes:
DISPLAY
SBRPASA
DIV Error
DIM Error
ERROR TYPE
Overflow (too large to display)
Divide by 0
Dimension error
INGR Error Entry error
NADA Attempt to calculate stairs without entering Rise and
Run
Auto-Range — If an “overflow” is created because of an input and calculation with small units that are out of the standard range of the display, the answer will be automatically expressed in the next larger units (instead of showing “SBRPASA”) — e.g., 20,000,000 mm is shown as 20,000
M
.
Also applies to Inches, Feet and Yards.
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Battery
This model uses one (1) CR2016 battery
(included). Should your calculator display become very dim or erratic, replace the battery.
Note: Please use caution when disposing of your old batteries, as they contain hazardous chemicals.
Replacement batteries are available at most discount or electronics stores. You may also call Calculated Industries at
1-775-885-4900.
Replacing the Battery
Turn the calculator over and open user guide door located at the top. Pull battery holder out (top left corner) and turn over.
Remove old battery and slide new battery under tabs. Turn holder over (negative side facing you) and insert into calculator.
Reset
If your calculator should ever “lock up,” press Reset — a small hole located above the p key — to perform a total reset.
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AREA AND VOLUME FORMULAS
Area Formulas
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Volume Formulas
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REPAIR AND RETURN
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 on, check the battery as outlined in the User's
Guide.
3.
If you need more assistance, please go to the website listed below.
4.
If you believe you need to return your product, please call a Calculated
Industries representative between the hours of 8:00am to 4:00pm Pacific
Time for additional information and a
Return Merchandise Authorization
(RMA).
Call Toll Free: 1-800-854-8075
Outside USA: 1-775-885-4900 www.calculated.com/warranty
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WARRANTY
Warranty Repair Service – U.S.A.
Calculated Industries (“CI”) warrants this product against defects in materials 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 warranty period, CI at its option will either repair (using new or remanufactured parts) or replace (with a new or remanufactured calculator) the product at no charge.
THE WARRANTY WILL NOT APPLY TO THE PRODUCT
IF IT HAS BEEN DAMAGED BY MISUSE, ALTERATION,
ACCIDENT, IMPROPER HANDLING OR OPERATION,
OR IF UNAUTHORIZED REPAIRS ARE ATTEMPTED
OR MADE. SOME EXAMPLES OF DAMAGES NOT
COVERED BY WARRANTY INCLUDE, BUT ARE NOT
LIMITED TO, BATTERY LEAKAGE, BENDING, A
“BLACK INK SPOT” OR VISIBLE CRACKING OF THE
LCD, WHICH ARE PRESUMED TO BE DAMAGES
RESULTING FROM MISUSE OR ABUSE.
To obtain warranty service in the U.S., please go to the website.
A repaired or replacement product assumes the remaining warranty of the original product or 90 days, whichever is longer.
Non-Warranty Repair Service – U.S.A.
Non-warranty repair covers service beyond the warranty period, or service requested due to damage resulting from misuse or abuse.
Contact Calculated Industries at the number listed on the back cover to obtain current product repair information and charges. Repairs are guaranteed for 90 days.
Repair Service – Outside the U.S.A.
To obtain warranty or non-warranty repair service for goods purchased outside the U.S., contact the dealer through which you initially purchased the product. If you cannot reasonably have the product repaired in your area, you may contact CI to obtain current product repair information and charges, including freight and duties.
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Disclaimer
CI MAKES NO WARRANTY OR REPRESENTATION,
EITHER EXPRESS OR IMPLIED, WITH RESPECT TO
THE PRODUCT’S QUALITY, PERFORMANCE, MER-
CHANTABILITY, OR FITNESS FOR A PARTICULAR
PURPOSE. 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 YOU
THE PURCHASER ASSUME THE ENTIRE RISK AS TO
ITS QUALITY AND PERFORMANCE.
IN NO EVENT WILL CI BE LIABLE FOR DIRECT, INDI-
RECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL
DAMAGES RESULTING FROM ANY DEFECT IN THE
PRODUCT OR ITS DOCUMENTATION.
The warranty, disclaimer, and remedies set forth above are exclusive and replace all others, oral or written, expressed or implied. No CI dealer, agent, or employee is authorized to make any modification, extension, or addition to this warranty.
Some states do not allow the exclusion or limitation of implied warranties or liability for incidental or consequential damages, so the above limitation or exclusion may not apply to you. This warranty gives you specific rights, and you may also have other rights, which vary from state to state.
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FCC CLASS B
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.
LOOKING FOR NEW IDEAS
Calculated Industries, a leading manufacturer of special-function calculators and digital measuring instruments, is always looking for new product ideas in these areas.
If you have an idea, or a suggestion for improving this product or User's Guide, please submit your comments online at www.calculated.com under “Contact Us,”
“Product Idea Submittal Agreement”.
Thank you.
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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.
Pocket Reference Guide copyrighted by
Calculated Industries, Inc. © 20
23
.
Construction Master TM and Calculated Industries® are trademarks and registered trademarks of
Calculated Industries, Inc.
ALL RIGHTS RESERVED
CALCULATED INDUSTRIES®
4840 Hytech Drive
Carson City, NV 89706 USA
800-854-8075 Fax: 1-775-885-4949
E mail: [email protected]
www.calculated.com
Designed in the USA
Printed in the Philippines
03/23
PRG4054E-
B
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