Every dimension belongs to an object and a drawing. Original room numbers, object marks, printed values and source regions stay together—even when the answer is unresolved.
464 of 464 photographs have extraction records, containing 27,517 properties. Initial image review is not exhaustive extraction: 0 photographs have passed the full-region check. 66 numbered sheets are reconciled. Modeling and architectural registration are separate work; these counts do not establish a complete building.
Download the structured register (JSON)Object: W228 upper-left typical construction for Stair A basement–second and Stair C first–second
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.
Applicability of this upper-left typical section only; does not assign all W228 generic details to Stair A.
Drawing notation: FOR STAIR 'A' BASEMENT TO 2ND FLOOR
Applicability of this upper-left typical section only; does not assign all W228 generic details to Stair A.
Applicability of same upper-left typical section to Stair C.
Drawing notation: FOR STAIR 'C' 1ST TO 2ND FLOOR
Applicability of same upper-left typical section to Stair C.
Upper-left wall callout. Storey-specific finish extent still requires Stair A/C placement drawings.
Drawing notation: MARBLE WALL
Upper-left wall callout. Storey-specific finish extent still requires Stair A/C placement drawings.
Leader points toward marble/metal interface. Layer thickness and full limits unresolved.
Drawing notation: PLASTER GROUT
Leader points toward marble/metal interface. Layer thickness and full limits unresolved.
Explicit material inside tread/landing slab of upper-left section; exact thickness and extent unresolved.
Drawing notation: MARBLE
Explicit material inside tread/landing slab of upper-left section; exact thickness and extent unresolved.
Printed leader toward inclined stair construction; tile type, thickness and exact layer assignment unresolved.
Drawing notation: TILE
Printed leader toward inclined stair construction; tile type, thickness and exact layer assignment unresolved.
10 in
Top horizontal dimension above marble tread zone. Nosing/face endpoint classes require verification.
Drawing notation: 10"
Top horizontal dimension above marble tread zone. Nosing/face endpoint classes require verification.
10.5 in
Upper horizontal witness in A/C typical section. Source-local token only; finish-riser/nosing and rough-support endpoints not yet fully classified. Distinct exposure from prior IMG1265 candidate10in; no cross-exposure correction or accepted tread going.
Drawing notation: 10½″
Upper horizontal witness in A/C typical section. Source-local token only; finish-riser/nosing and rough-support endpoints not yet fully classified. Distinct exposure from prior IMG1265 candidate10in; no cross-exposure correction or accepted tread going.
Calculated from: stair-20261012m-img_1265-m7
1.5 in
Vertical witness beside the horizontal MARBLE tread facing in upper-left section. Does not establish riser facing/string/window thickness, full fabrication profile or installed finish extents.
Drawing notation: 1½″
Vertical witness beside the horizontal MARBLE tread facing in upper-left section. Does not establish riser facing/string/window thickness, full fabrication profile or installed finish extents.
Calculated from: stair-20261012m-img_1265-m5
TILE leader points into the hatched layer behind inclined facing. Printed material rules reused; hatching/leader does not establish product, thickness, fastening or exact installed scope.
Drawing notation: TILE [leader reaches hatched layer above the inclined plate-string/support region]
TILE leader points into the hatched layer behind inclined facing. Printed material rules reused; hatching/leader does not establish product, thickness, fastening or exact installed scope.
Calculated from: stair-20261012m-img_1265-m6
Source inventory is separate from the floor filters above. Select one drawing to inspect it; no drawing set is preloaded.