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U
SER
’
S
G
UIDE
— 81
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 RISE 10 FEET 1 INCH
1 5 f 5 i R RUN 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 31.56°
s RUN STORED 15 FEET 5 INCH
s RISE STORED 10 FEET 1 INCH
s R-HT STORED 7-1/2 INCH
s T-WD STORED 10 INCH
s HDRM STORED 6 FEET 8 INCH
s FLOR STORED 10 INCH
*A in the display means that the calculated riser height exceeds the stored
desired riser height.
4065UG-E-B 6/9/04 1:50 PM Page 81
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