Calculated Industries 4065 v3.0 - Manual (Page 81)

80 — C ONSTRUCTION M ASTER ® P RO / T RIG / D ESKTOP
Stairs — Given Only the Run
You’re building a stairway with a total run of 20 feet. Your desired
riser height is 7-1/2 inches and desired tread width is 10 inches. The
desired headroom is 6 feet 8 inches and floor thickness 10 inches.
Find all stair values, then calculate the rise.
KEYSTROKE DISPLAY
1. Enter run:
o o 0.
2 0 f R RUN 20 FEET 0 INCH
2. Find riser height, number of risers, riser underage/overage, tread
width, number of treads, tread overage/underage, stairwell opening,
stringer length and angle of incline. As a final step, calculate the rise.
s R-HT 7-1/2 INCH
s RSRS 25.
s R+/– 0 INCH
s T-WD 10 INCH
s TRDS 24.
s T+/– 0 INCH
s OPEN 10 FEET 0 INCH
s STRG 25 FEET 0 INCH
s INCL 36.87°
s STORED RUN 20 FEET 0 INCH
s RISE 15 FEET 7-1/2 INCH
4065UG-E-B 6/9/04 1:50 PM Page 80