P
ocket
R
efeRence
G
uide
— 6
j
Jack Key —
Calculates Jack rafter
lengths on the Regular-pitched
roof side.
Qj
Irregular Jack —
Calculates Jack
rafter lengths on the Irregular-
pitched 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
s
Stair Key —
Given Rise and/or
Run and entered/stored variables,
calculates or displays:
pRESS RESUlT
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
190 mm:
190M
.
Q9
Tread Width —
Stores a desired
Tread width other than 10"
(default).
For example, enter 300 mm:
300M
.
Miscellaneous functions
%
Percentage —
Used to find 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*
1/x —
Finds the reciprocal of a
number (e.g.,
8Q*
0.125).
Qx
Clear All —
Returns all stored
values to the default settings. (Does
not affect Preference Settings.)
PRG4050E-A.indd 6
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Содержание Construction Master 5 4050
Страница 1: ...CONSTRUCTION MASTER 5 Pocket Reference Guide Metric Edition FAST ACCURATE RELIABLE Model 4050 ...
Страница 36: ...AREA AND VOLUME FORMULAS Area Formulas ...
Страница 37: ...Pocket Reference Guide 34 AS Volume Formulas ...
Страница 44: ...Designed in the United States of America PRG4050E A Printed in China ...