User guide

POCKET REFERENCE GUIDE — 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)