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: IMG1179 internal metal stair labeled UP22R
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.
83.75 in
Horizontal witness across depicted internal-stair portion; not total stair travel, rise or accepted flight footprint.
Drawing notation: 6′-11¾″
Horizontal witness across depicted internal-stair portion; not total stair travel, rise or accepted flight footprint.
42.25 in
Vertical plan witness across lower stair portion between landing division and bottom line; source-local dimension with endpoints retained for follow-up.
Drawing notation: 3′-6¼″
Vertical plan witness across lower stair portion between landing division and bottom line; source-local dimension with endpoints retained for follow-up.
Source inventory is separate from the floor filters above. Select one drawing to inspect it; no drawing set is preloaded.