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Stair Layout Key
Stair Key — Given Rise
and/or Run and entered/
s
stored variables, calculates
or displays:
Press Result
1
Riser Height
2
Number of Risers
3
Riser Overage/
Underage
4
Tread Width
5
Number of Treads
6
Tread Overage/
Underage
7
Stringer Length
8
Angle of Incline
9
Stored Run
10
Stored Rise
11
Stored Desired
Riser Height
12
Stored Desired
Tread Width
STAIR DEFAULT VALUES
• 7-1/2" Desired Riser Height
• 10" Desired Tread Width
P
R
OCKET
EFERENCE
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