Reference Manual

POCKET REFERENCE GUIDE — 37
Stairs — Given Only the Floor-to-Floor
Rise; Entering Other Than 7-1/2 Inch
Desired Riser Height
Find stair values if the Floor-to-Floor Rise
is 12 Feet 6 Inches, and the desired Riser
Height is 8 Inches:
KEYSTROKE DISPLAY
1. Enter desired Riser Height and Floor-to-
Floor Rise:
o o 0.
8 i Ç 7 R-HT 8 INCH
1 2 f 6 i r
RISE 12 FEET 6 INCH
2. Calculate stair values:
s R-HT 7-7/8 INCH
s RSRS 19.
s R+/– – 0-3/8 INCH
s T-WD 10 INCH
s TRDS 18.
s T+/– 0 INCH
s STRG 19 FEET 1-1/8 INCH
s INCL 38.22°
s RUN 15 FEET 0 INCH*
s RISE 12 FEET 6 INCH
s R-HT 8 INCH
s T-WD 10 INCH
*Note: Run is calculated based on Tread values,
as it was not entered. The Total Run of a stair-
way is equal to the width of each Tread multi-
plied by the number of Treads.
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