Calculated Industries 4050 Metric Edition User Manual

Pocket Reference Guide

Metric Edition

CONSTRUCTION MASTER

FAST. ACCURATE. RELIABLE.

Model 4050

®

5

CONSTRUCTION MASTER® 5

The Construction Master 5 (Model 4050)
will help you save time, reduce costly errors
and build like a pro!

Quickly Solve:

• Areas, Volumes and Weights

• Circle/Arc Calculations

• Common, Hip/Valley, Jack Rafter

Lengths (Regular and Irregular)

• Stair Layout Solutions

• Rake-Wall Solutions

• Concrete, Flooring Quantity

• Squaring-Up

• Dimensional Problems and Conversions

— Metric, Yards, Feet-Inches-Fractions

TABLE OF CONTENTS

GETTING STARTED .....................................1

Key Denitions ............................................1

Basic Function Keys .................................1

Dimension Keys ........................................2

Arc/Circle Keys .........................................3

Right Triangle/Roof Framing Keys ............3

Stair Layout Key ........................................5

Stair Settings .............................................6

Miscellaneous Functions ...........................6

Paperless Tape Example .............................8

Preference Settings .....................................9

Entering Dimensions .................................10

Entering Linear Dimensions ....................10

Entering Square/Cubic Dimensions ........11

Basic Math Operations ..............................12

USING THE

CONSTRUCTION MASTER® 5 ...................12

Adding and Subtracting

Strings of Dimensions ...............................12

Dividing Dimensions ..................................13

Rectangular Area and Volume ...................13

Entering Square and

Cubic and Adding A Waste Allowance .......13

Linear Conversions ...................................14

Weight Conversions ..................................14

Weight Per Volume ....................................15

Using the Memory .....................................16

Baluster Spacing .......................................17

Number of Studs .......................................18

Circle Area and Circumference .................18

Arc Angle or Degree ..................................19

Concrete Volume for Driveway ..................20

Concrete Columns .....................................20

Complex Concrete Volume ........................21

Right Angle / Framing ................................22

Squaring-Up a Foundation ......................23

Pitch — Converting Roof Angle ...............23

Converting Slope .......................................24

Common Rafter Length .............................24

Regular Hip/Valley

And Jack Rafters .......................................25

Irregular Hip/Valley ....................................26

Rake-Wall – No Base ................................26

Stairs .........................................................27

Stairs — Given Rise and Run .................27

Stairs — Given Rise Only........................28

Area and Volume Formulas .......................33

Area Formulas .........................................33

Volume Formulas ....................................33

APPENDIX ..................................................35

GETTING STARTED

KEY DEFINITIONS

Basic Function Keys

+-x
*=

0

and

O

o

Q

e

L

N

QN

Arithmetic operation keys.

Keys used for entering numbers

-

9
.

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

nd the Square Root of a non-

dimensional or area value.

Recall Key — Used with other keys
to recall stored values and settings.

Memor y Key — Adds the displayed
value to Memory. Clears when the
calculator is shut off.

Memor y Minus (M–) — Clears
Memory without changing
current display.

QL

Memor y Clear (M-R/C) — Subtracts
the displayed value from Memory.

LL

Memory Clear — Clears Memory
and displays Memory Total.

Dimension Keys

y

Yards Key — Enters or converts
to Ya rds.

f

Feet Key — Enters or converts to
Feet as whole or decimal numbers.
Also used with the
for entering Feet-Inch values
(e.g.,

6f9i1/2

Repeated presses during
conversions toggle between
Fractional and Decimal Feet.

i

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.,
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.

Pocket RefeRence Guide — 2

i

and / keys

).

9i1/2

).

m

c

M

b

w

Arc/Circle Keys

C

QC

Right Triangle/Roof Framing Keys

p

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.

Weight Key — Enters or converts
(a volume value) to Tons, Pounds,
Metric Tons or Kilograms.
Repeated presses will cycle through
these units.

Circle Key

Area and Circumference based on
entered Diameter.

Arc

Degree, chord length, segment area,
pie slice area, segment rise, and
length of arched segment wall studs.

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:

— Calculates Circle

— Calculates Arc Length or

Qp

r

R

d

H

QH

a Dimension
an Angle
a Ratio
a Percentage

25cp

30p

0.75Qp
75%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.,

.583Qp

).

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 nding common raf ter

lengths.

Hip/Valley Key — Calculates length

of the Regular or Irregular Hip/
Valley rafter.

Irregular Pitch — Enters Irregular

Pitch used to calculate lengths of the
Irregular Hip/Valley and Jack rafters.

Pocket RefeRence Guide — 4

j

Jack Key — Calculates Jack rafter

lengths on the Regular-pitched
roof side.

Qj

Irregular Jack — Calculates Jack

rafter lengths on the Irregular­pitched roof side.

P

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

P

, that value is considered the
base and will be added to the
stud lengths.

Stair Layout Key

Stair Key — Given Rise and/or

s

Run and entered/stored variables,
calculates or displays:

PRESS RE SU LT

1 Riser Height
2 Number of Risers
3 Riser Overage/Underage
4 Tread Width
5 Number of Treads
6 Tread Overage/ Underage
7 Stringer Length
8 Angle of Incline
9 Stored Run
10 Stored Rise
11 Stored Desired Riser Height

12 Riser Height 12 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 by using the
following keys:

Q7

Riser Height — Stores a desired

Riser height other than 7-1/2"
(default). For example, enter

Q9

190 mm:

Tread Width — Stores a desired

190M

.

Tread width other than 10" (default).
For example, enter 300 mm:

300M

.

Miscellaneous Functions

%

Percentage — Used to nd a given

percent of a number.

B

Backspace Key — Used to delete

entries one keystroke at a time
(unlike the

o

function, which

deletes the entire entry).

Q*

Qx

1/x — Finds the reciprocal of a

number (e.g.,

8Q*

0.1 2 5).

Clear All — Returns all stored

values to the default settings. (Does
not affect Preference Settings.)

Pocket RefeRence Guide — 6

Q-

Q+

Q>

Q.

Q0

Q5

Change Sign (+/-) — Toggle
displayed value between negative
and positive value.

Pi — Displays the value of π
(3 .1415927) .

x2 — Squares a linear or non-

dimensional value.

Total Cost — Based on entry of per

unit cost.

Store Weight per Volume —

Stores a new Weight per Volume
value as listed below:

Note: After entering a value and

Q0

pressing

0

digit key until you’ve reached the

the
desired Weight per Volume format. To
recall your setting, press

, continue pressing

L0

.

• 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 until you change
it or perform a Clear All (

Qx

).

On-center Spacing (o.c.) — Stores

a new On-center spacing (e.g.,

400MQ5

). The value is
used for jack and rake wall stud
calculations. Default is 16".

Q=

Paperless Tape

— Useful for

checking gures, as it scrolls

through your past 20 entries or
calculations. Press
Paperless Tape mode. Press
or

-

to scroll forward or backward.

Press

=

to exit mode and continue

L=

to access

+

with a new entry or calculation. See
example below.

PAPERLESS TAPE EXAMPLE

Add 6 m, 5 m and 4 m, 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 DI SP L AY

oo
6m+
5m+
4m=
L=µ

+
+
+

­=
+10m=

6.000

11.000 M

15.000 M

TTL 15.000

01 6.000
02 5.000
03 4.000
02 5.000

TTL 15.000

25.000

0.

M

M

M

M

M

M

M

M

Pocket RefeRence Guide — 8

PREFERENCE SETTINGS

Press Q, 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 Q AND: SETTING/FUNCTION

First press of %:

(Fractional
Resolution)

+
+
+
+
+
+

Second press of

(Area Displays)

+
+
+
+

Third press of

(

Volume Displays)Std.

+
+
+
+

(repeats options)

1/16
1/32
1/64
1/2
1/4
1/8
1/16

(repeats options)

%

:

Std.

0.

SQ FEET

0.

SQ YD

0.

SQ M

Std.

(repeats options)

%

:

0.

CU YD

0.

CU FEET

0.

CU M

Std.

Fourth press of %:

(

Meter Linear

Displays

+
+

Fifth press of

(
Displays

+
+

)

(oatingpoint)

(repeats options)

%

:

Decimal Degree

)

(oatingpoint)

(repeats options)

0.000

M

FLOAt M

0.000 M

0.00º
FLOAt

0.00º

Sixth press of %:

(

Fractional Mode)Std.

+
+

(repeats options)

COnSt
Std.

ENTERING DIMENSIONS

Entering Linear Dimensions

Examples of entering Linear Dimensions:

DIMENSION KEYSTROKE

Clear calculator

17. 5 m
Clear calculator
100 cm
Clear calculator
500 mm

o

17.5m
o

100c

o

500M

Pocket RefeRence Guide — 10

Entering Square/Cubic Dimensions

Examples of entering Square and Cubic
Dimensions:

KEYSTROKE DI SP L AY

oo

Enter numeric value and press desired unit
key once to label value as “Linear:”

KEYSTROKE DI SP L AY

oo
100M

100

Enter numeric value and press desired unit
key twice to label value as “Square:”

KEYSTROKE DI SP L AY

oo
100MM

100

SQ MM

Enter numeric value and press desired unit
key three times to label value as “Cubic:”

KEYSTROKE DI SP L AY

oo
100MMM

Note: If you pass the desired dimensional format,
keep on pressing the dimensional unit key until the
desired result is displayed again.

100

CU MM

0.

0.

MM

0.

0.