© 2022 Johnson Level & Tool — 36
EXAMPLES
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 10 Feet 2
Inches, and the desired Riser Height is 6 Inches:
KEYSTROKE DISPLAY
1. ENTER DESIRED RISER HEIGHT AND FLOOR-TO- FLOOR RISE:
On/C
On/C
0
6
Inch
Conv
7
R-HT
STORED
6 INCH
1
0
Feet
2
Inch
Rise
RISE 10 FEET 2 INCH
2. CALCULATE STAIR VALUES:
Stair
R-HT 6-1/8 INCH
Stair
RSRS 20
Stair
R+/– – 0-1/2 INCH
Stair
T-WD
STORED
10 INCH
Stair
TRDS 19
Stair
T+/– 0 INCH
Stair
STRG 18 FEET 6-13/16 INCH
Stair
INCL 31.49°
Stair
RUN 15 FEET 10 INCH*
Stair
RISE
STORED
10 FEET 2 INCH
Stair
R-HT
STORED
6 INCH
Stair
T-WD
STORED
10 INCH
*Note: Run is calculated based on Tread values, as it was
not entered. The Total Run of a stairway is equal to the
width of each Tread multiplied by the number of Treads.
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