Calculated Industries 4080 v3.1 Construction Master Pro Trig - Stairs - Given Rise and Run, Using Riser Limited Function for Code Restrictions

76 — 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 Inches.
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 (Riser Limited) 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 15 FEET 5 INCH
s RISE 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
STORED
STORED
STORED
STORED
STORED
STORED