Calculated Industries 4020 - Manual (Page 18)

P
OCKET
R
EFERENCE
G
UIDE
— 14
Multi-Function h Key
Find the volume, wall area, and total
room area of an 18’ x 25’ room measuring
12’ tall.
KEYSTROKE DISPLAY
o o 0.
1 8 f l LNTH 18
FEET
0
INCH
2 5 f W WDTH 25
FEET
0
INCH
1 2 f h HGHT 12
FEET
0
INCH
h VOL 5400.
CU FEET
h WALL* 1032.
SQ FEET
h ROOM** 1482.
SQ FEET
*Wall Area adds the length and width, multiplies
them by two and then multiplies by height.
**Room Area=Wall Area+Ceiling Area
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
SQ FEET
1 5 0 f f f + 2 0 %
180.
CU FEET