Calculated Industries 4065 v3.0 - Manual (Page 79)

78 — C ONSTRUCTION M ASTER ® P RO / T RIG / D ESKTOP
Stairs — Given Only Floor-to-Floor Rise
You’re building a stairway with a total rise of 9 feet 11 inches. 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 run.
*Note: Headroom and floor thickness are required to calculate the length of the stair-
well opening.
KEYSTROKE DISPLAY
1. Enter known rise:
o o 0.
9 f 1 1 i r RISE 9 FEET 11 INCH
2. Recall stored desired stair riser height:
® 7 R-HT STORED 7-1/2 INCH
3. Recall stored desired stair tread width:
® 9 T-WD STORED 10 INCH
4. Recall stored desired floor thickness:
® 8 FLOR STORED 10 INCH
5. Display stored headroom (via Preference Setting Mode):
З Я Я Я Я HDRM 6 FEET 8 INCH
6. Find riser height, number of risers, riser underage/overage, tread
width, number of treads, tread overage/underage, length of stairwell
opening, stringer length and angle of incline. As a final step, calcu-
late the run.
s R-HT 7-7/16 INCH
s RSRS 16.
s R+/– 0 INCH
s T-WD 10 INCH
s TRDS 15.
s T+/– 0 INCH
s OPEN 10 FEET 1 INCH
s STRG 15 FEET 6-15/16 INCH
s INCL 36.64°
s RUN 12 FEET 6 INCH
s * RISE STORED 9 FEET 11 INCH
*Continuous presses of s will also recall stored desired riser height, tread, head-
room and floor thickness values.
4065UG-E-B 6/9/04 1:50 PM Page 78