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: Machine-room metal trap door and frame
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.
48 in
Horizontal dimension across the larger rectangular metal trap in the machine-room plan. Source-local only; no installed geometry or historical issue selected.
Drawing notation: 4′-0″
Horizontal dimension across the larger rectangular metal trap in the machine-room plan. Source-local only; no installed geometry or historical issue selected.
60 in
Vertical dimension within the larger rectangular metal trap; printed independently of width. Source-local only; no installed geometry or historical issue selected.
Drawing notation: 5′-0″
Vertical dimension within the larger rectangular metal trap; printed independently of width. Source-local only; no installed geometry or historical issue selected.
Material/type instruction inside the larger rectangular trap; metal alloy, gauge and frame profile not supplied. Source-local only; no installed geometry or historical issue selected.
Drawing notation: METAL TRAP DOOR AND FRAME
Material/type instruction inside the larger rectangular trap; metal alloy, gauge and frame profile not supplied. Source-local only; no installed geometry or historical issue selected.
Source inventory is separate from the floor filters above. Select one drawing to inspect it; no drawing set is preloaded.