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82 — C
ONSTRUCTION
M
ASTER
®
P
RO
/ T
RIG
/ D
ESKTOP
Stairs —
Given Rise and Run, Using “Riser Limited” Function
for Code Restrictions
Your local code prohibits risers greater than 7-1/2 inches. You need
to build a stairway with a floor-to-floor height of 10 feet 1 inch, a run
of 15 feet 5 inches. Calculate all stair values. Use the “Riser Limited”
function (second function of the s key) to calculate a riser height
that does not exceed the stored Desired Riser Height of 7-1/2.”
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 using “Riser Limited”:
Ç s R-HT 7-1/8 INCH
s RSRS 17.
s R+/– 1/8 INCH
s T-WD 11-9/16 INCH
s TRDS 16.
s T+/– 0 INCH
s OPEN 12 FEET 2-1/16 INCH
s STRG 18 FEET 1-5/16 INCH
s INCL 31.64°
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
4065UG-E-B 6/9/04 1:50 PM Page 82
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