P
OCKET 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 C-AL 8 PULG
1 2 f 6 i r
ALT 12 PIES 6 PULG
2. Calculate stair values:
s C-AL 7-7/8 PULG
s CHUE 19.
s C+/– – 0-3/8 PULG
s H-AN 10 PULG
s HUE 18.
s H+/– 0 PULG
s LRGO 19 PIES 1-1/8 PULG
s INCL 38.22°
s RECR 15 PIES 0 PULG*
s ALT 12 PIES 6 PULG
s C-AL 8 PULG
s H-AN 10 PULG
*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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GUARD
GUARD
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