Calculated Industries 4090 User Manual
Page 100
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U
SER
’
S
G
UIDE
— 99
Stairs — Given Rise and Run
You need to build a stairway with a floor-to-floor height of 10 Feet 1
Inch, a Run of 15 Feet 5 Inches, and a nominal desired Riser height
of 7-1/2 Inches (default). Calculate all stair values.
KEYSTROKE
DISPLAY
1. Enter Rise and Run:
o o
0.
1 0 f 1 i r
Y 10
FEET
1
INCH
1 5 f 5 i R
X 15
FEET
5
INCH
2. Find stair values:
s
R-HT
7-9/16
INCH
*
s
RSRS 16.
s
R+/– 0
INCH
s
T-WD 12-5/16
INCH
s
TRDS 15.
s
T+/– – 0-5/16
INCH
s
OPEN 12
FEET
2-1/2
INCH
s
STRG 18
FEET
0-3/4
INCH
s
INCL 31.5588°
s
RUN (
X
)
15
FEET
5
INCH
s
RISE (
Y
)
10
FEET
1
INCH
s
R-HT
7-1/2
INCH
s
T-WD
10
INCH
s
HDRM
6
FEET
8
INCH
s
FLOR
10
INCH
*A yield symbol (
) will light in the display meaning the calculated Riser height
exceeds the stored desired Riser height by 10%.
STORED
STORED
STORED
STORED
STORED
STORED
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