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P
OCKET
R
EFERENCE
G
UIDE
— 8
Stair Layout Key
s
Given Height and/or Length
and stored variables,
calculates or displays:
Press Result
1
Riser Height
(R-HT)
2
Number of Risers
(RSRS)
3
Riser Overage/
Underage
(R+/-)
4
Tread Width
(T-WD)
5
Number of Treads
(TRDS)
6
Tread Overage/
Underage
(T+/-)
7
Stairwell Opening
(OPEN)
8
Stringer Length
(STRG)
9
Angle of Incline
(INCL)
10
Stored or Calculated
Run
(RUN)
11
Stored or Calculated
Rise
(RISE)
12
Stored Desired
Riser Height
(R-HT)
13
Stored Desired
Tread Width
(T-WD)
14
Stored Headroom
(HDRM)
15
Stored Floor
Thickness
(FLOR)
(Cont’d)