Printed values, calculations, image traces and observed counts are different kinds of evidence. “Verified” applies to the specific reading—not to the whole room or model.
stair-e-upper-diagnostic-envelopeunreviewed · calculated
Median west enclosure face
X = -33.275 ft (median provisional trace)-33.275 ft
Median of the minimum X extents for levels 2, 3, 5, 6 and 7; exact wall face is not accepted.
Calculated from: f2-stair-e-vertex-1-west, f3-stair-e-vertex-1-west, f5-stair-e-vertex-1-west, f6-stair-e-vertex-1-west, f7-stair-e-vertex-1-west
stair-e-upper-diagnostic-envelopeunreviewed · calculated
Median east enclosure face
X = -24.115 ft (median provisional trace)-24.115 ft
Median of the maximum X extents for levels 2, 3, 5, 6 and 7; exact wall face is not accepted.
Calculated from: f2-stair-e-vertex-3-west, f3-stair-e-vertex-3-west, f5-stair-e-vertex-3-west, f6-stair-e-vertex-3-west, f7-stair-e-vertex-3-west
stair-e-upper-diagnostic-envelopeunreviewed · calculated
Median south enclosure face
Z = -71.628 ft (median provisional trace)-71.628 ft
Median of the minimum Z extents for levels 2, 3, 5, 6 and 7; exact wall face is not accepted.
Calculated from: f2-stair-e-vertex-1-north, f3-stair-e-vertex-1-north, f5-stair-e-vertex-1-north, f6-stair-e-vertex-1-north, f7-stair-e-vertex-1-north
stair-e-upper-diagnostic-envelopeunreviewed · calculated
Median north enclosure face
Z = -54.971 ft (median provisional trace)-54.971 ft
Median of the maximum Z extents for levels 2, 3, 5, 6 and 7; exact wall face is not accepted.
Calculated from: f2-stair-e-vertex-3-north, f3-stair-e-vertex-3-north, f5-stair-e-vertex-3-north, f6-stair-e-vertex-3-north, f7-stair-e-vertex-3-north
stair-e-upper-diagnostic-envelopeunreviewed · calculated
Diagnostic envelope width
9.160 ft (calculated)9.16 ft
Difference of median X extents; not an accepted clear width.
Calculated from: stair-e-upper-diagnostic-min-x, stair-e-upper-diagnostic-max-x
stair-e-upper-diagnostic-envelopeunreviewed · calculated
Diagnostic envelope depth
16.657 ft (calculated)16.657 ft
Difference of median Z extents; not an accepted clear dimension.
Calculated from: stair-e-upper-diagnostic-min-z, stair-e-upper-diagnostic-max-z
stair-e-upper-diagnostic-envelopeunreviewed · inferred
Analytical flight display width
4.0 ft diagnostic only4 ft
Fits two display flights and a 1.16-foot center gap inside the median envelope. It is not a printed or accepted clear stair width.
stair-e-upper-diagnostic-envelopeunreviewed · inferred
Analytical south landing display depth
4.0 ft diagnostic only4 ft
Display fit only. The remaining north landing depth is 4.782 feet after the printed 7.875-foot run; neither landing depth is accepted.
stair-e-upper-diagnostic-envelopeunreviewed · calculated
Calculated ordinary tread going
10 1/2 in (7'-10 1/2" / 9 treads)0.875 ft
The typical plan numbers ten risers per flight; nine tread goings close the printed 7-foot-10.5-inch run exactly. This supports diagnostic stations only, not fabrication geometry.
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-typical-run-dimension, w226-typical-up-riser-count
stair-e-upper-diagnostic-envelopeunreviewed · calculated
Typical level-2-through-6 diagnostic riser height
6.9 in (11.5 ft / 20)0.575 ft
Each current project reference interval from levels 2 through 6 is 11.5 feet. W226 prints 20 risers; the result is used only for analytical surfaces.
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-typical-up-riser-count, frame-second-floor-finish, env-sixth-F3-level, env-sixth-F4-level, env-sixth-F5-level, frame-sixth-floor-finish