Calculated Industries 4050 v3.1 - Manual (Page 41)

P
OCKET
R
EFERENCE
G
UIDE
— 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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