f7-f8-stair-e-upper-diagnostic-placementverified · calculated
W226 Stair E eighth-floor local datum
92.0 ft local (185.25 - 93.25)92 ft
W226 regional Stair E datum converted to the project first-floor local datum.
IMG_1118 · sheet-W226 · Locate on drawing ↗Drawing notation: 2ND, 3RD, 4TH, 5TH & 6TH FLOOR PLANS / 7TH FLOOR PLAN / 7'-10 1/2" / DOWN 20 RISERS / UP 20 RISERS / DOWN 22 RISERS / UP 20 RISERS
Upper-story plan and datum controls; no metric X/Z transform is accepted.
IMG_1122 · sheet-W228 · Locate on drawing ↗Drawing notation: TYPICAL SECTION OF LANDINGS WHERE TWO RISERS OCCUR / ELEVATION WHERE TWO RISERS OCCUR IN LANDING
Candidate two-riser landing construction only; storey applicability is not printed.
Calculated from: w226-eighth-floor-finish-elevation, w226-first-floor-finish-elevation
f7-f8-stair-e-upper-diagnostic-placementverified · calculated
Regional-level-7-to-level-8 diagnostic riser height
7.2 in (12 ft / 20)0.6 ft
Calculated from W226 printed regional datums and printed 20-riser count; physical profiles and placement remain unresolved.
IMG_1118 · sheet-W226 · Locate on drawing ↗Drawing notation: 2ND, 3RD, 4TH, 5TH & 6TH FLOOR PLANS / 7TH FLOOR PLAN / 7'-10 1/2" / DOWN 20 RISERS / UP 20 RISERS / DOWN 22 RISERS / UP 20 RISERS
Upper-story plan and datum controls; no metric X/Z transform is accepted.
IMG_1122 · sheet-W228 · Locate on drawing ↗Drawing notation: TYPICAL SECTION OF LANDINGS WHERE TWO RISERS OCCUR / ELEVATION WHERE TWO RISERS OCCUR IN LANDING
Candidate two-riser landing construction only; storey applicability is not printed.
Calculated from: w226-f7-f8-vertical-interval, w226-seventh-up-riser-count