Calculated Industries Construction Master 5 User manual

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!
CONSTRUCTION MASTER®5 v3.1

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
TABLE OF CONTENTS

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

POCKET REFERENCE GUIDE — 1
KEY DEFINITIONS/FUNCTIONS
Basic Function Keys
+ – x Arithmetic operation keys.
÷ =
0– 9Keys used for entering
and •numbers.
% Percent Key — Four-func-
tion (+, –, x, ÷) percent key.
O Off Key — Turns all power
off, clearing all non-perma-
nent 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 dimen-
sions or with other keys to
access special functions.
√ Square Root Key — Used to
find the Square Root of a
non-dimensional or area
value.
Ç √ x2Function — Finds the
Square of a linear or non-
dimensional value.
GETTING STARTED

POCKET REFERENCE GUIDE — 2
® Recall Key — Used with
other keys to recall stored
values and settings.
µ Memory Key — Adds the
displayed value to Memory.
Clears when the calculator
is shut off.
Ç µ Memory Minus (M–) —
Subtracts the displayed
value from Memory.
Ç ® Memory Clear — Clears
Memory without changing
current display.
® ® Memory Clear — Clears
Memory and displays
Memory Total.
Dimension Keys
y Yards Key — Enters or
converts to Yards .
f Feet Key — Enters or con-
verts to Feet as whole or
decimal numbers. Also
used with the iand /
keys for entering Feet-Inch
values (e.g., 6 f 9 i
1 / 2). Repeated press-
es during conversions tog-
gle between Fractional and
Decimal Feet.

POCKET REFERENCE GUIDE — 3
i Inch Key — Enters or con-
verts to Inches . Entry can
be whole or decimal num-
bers. 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 denomina-
tor (bottom) is not entered,
the calculator's fractional
accuracy setting is auto-
matically used.
m Meters Key — Enters or
converts to Meters .
c Centimeters Key — Enters
or converts to Centimeters .
M Millimeters Key — Enters
or converts to Millimeters .
b Board Feet Key — Enters
or converts Cubic values to
Board Feet. One Board
Foot is equal to 144 Cubic
Inches.

POCKET REFERENCE GUIDE — 4
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 Circle Key — Calculates
Circle Area and
Circumference based on
entered Diameter.
Ç C 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:

POCKET REFERENCE GUIDE — 5
a Dimension 9 i p
an Angle 3 0 p
a Ratio 0 • 7 5 Ç p
a Percentage 7 5 % p
APitch entry will remain in
permanent storage until
revised or reset. A solution
will be replaced by its
entered 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 vertical
leg (height) of a Right
Triangle.
R
Run Key — Enters or cal-
culates the Run or horizon-
tal leg (base) of a Right
Triangle.
d
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.
H
Hip/Valley Key —
Calculates length of the
Regular or Irregular Hip/
Valley rafter.

POCKET REFERENCE GUIDE — 6
Ç H Irregular Pitch — Enters
Irregular Pitch used to cal-
culate lengths of the
Irregular Hip/Valley and
Jack rafters.
j Jack Key — Calculates
Jack rafter lengths on the
Regular -pitched roof side.
Ç j Irregular Jack — Calculates
Jack rafter lengths on the
Irregular -pitched roof side.
∑ Rake-Wall Key — Finds
the stud sizes based on
entered Right Triangle val-
ues and the stored On-
Center spacing. If a dimen-
sional value is entered
before pressing ∑, that
value is considered the
base and will be added to
the stud lengths.