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-c-w223-basement-first-flight-registerverified · observed
depicted_flight_count
[basement plan has two perpendicular flight strips around Elevator No.2]2 count
Plan topology only; no traced length, accepted polygon or building transform.
IMG_1113 · W-223 · Locate on drawing ↗Drawing notation: [basement plan has two perpendicular flight strips around Elevator No.2]
Plan topology only; no traced length, accepted polygon or building transform.
stair-c-w223-basement-first-flight-registerunreviewed · observed
intermediate_landing_count
[turning landing between the two basement plan flight strips]1 count
Turning landing visible; landing boundaries and exact elevation unresolved.
IMG_1113 · W-223 · Locate on drawing ↗Drawing notation: [turning landing between the two basement plan flight strips]
Turning landing visible; landing boundaries and exact elevation unresolved.
stair-c-w223-basement-first-flight-registerverified · printed
lower_flight_tread_count
11 TREADS @ 10½" = 9'-7½"11 count
Bottom horizontal flight in basement plan; printed count excludes the floor landing.
stair-c-w223-basement-first-flight-registerverified · printed
lower_flight_tread_going
11 TREADS @ 10½" = 9'-7½"10.5 in
Printed going for bottom horizontal basement flight; tread profile/nosing and installed geometry unresolved.
stair-c-w223-basement-first-flight-registerverified · printed
lower_flight_run
11 TREADS @ 10½" = 9'-7½"115.5 in
Printed product/run between flight witnesses; exact finish versus nosing endpoints need classified review.
stair-c-w223-basement-first-flight-registerunreviewed · derived
lower_flight_riser_count_candidate
11 printed treads + terminal landing rise = 12 candidate risers12 count
Conventional tread-plus-one interpretation, not a printed flight-specific riser total. Reconcile against all numbered risers. Candidate calculation only; its parents are not accepted physical controls.
IMG_1113 · W-223 · Locate on drawing ↗Drawing notation: 11 printed treads + terminal landing rise = 12 candidate risers
Conventional tread-plus-one interpretation, not a printed flight-specific riser total. Reconcile against all numbered risers. Candidate calculation only; its parents are not accepted physical controls.
Calculated from: stair-closeout1013a-img_1113-m003
stair-c-w223-basement-first-flight-registerunreviewed · printed
upper_flight_tread_count_unresolved
[rotated fine tread chain not certified]Numeric value unresolved
Candidate reading withheld; off-target 90-degree crop did not resolve this chain. Do not complete the 22-riser total by assumption.
IMG_1113 · W-223 · Locate on drawing ↗Drawing notation: [rotated fine tread chain not certified]
Candidate reading withheld; off-target 90-degree crop did not resolve this chain. Do not complete the 22-riser total by assumption.
stair-c-w223-basement-first-flight-registerverified · printed
upper_flight_tread_count
9 TREADS @ 10½" = 7'-10½"9 count
Independent IMG_1260 basement vertical upper-flight chain. Resolves prior IMG_1113 null reading; lower 11-tread chain retained in prior package.
IMG_1260 · W-223 · Locate on drawing ↗Drawing notation: 9 TREADS @ 10½" = 7'-10½"
Independent IMG_1260 basement vertical upper-flight chain. Resolves prior IMG_1113 null reading; lower 11-tread chain retained in prior package.
stair-c-w223-basement-first-flight-registerverified · printed
upper_flight_tread_going
9 TREADS @ 10½" = 7'-10½"10.5 in
Printed going; exact tread/nosing construction not inferred.
stair-c-w223-basement-first-flight-registerverified · printed
upper_flight_run
9 TREADS @ 10½" = 7'-10½"94.5 in
Printed tread-product run; detailed finish/nosing witness classification remains open.
stair-c-w223-basement-first-flight-registerunreviewed · derived
upper_flight_riser_count_candidate
9 printed treads + 1 terminal rise10 count
Conventional tread-plus-one candidate; source-local labels 13–22 support but do not substitute for classified landing boundaries.
IMG_1260 · W-223 · Locate on drawing ↗Drawing notation: 9 printed treads + 1 terminal rise
Conventional tread-plus-one candidate; source-local labels 13–22 support but do not substitute for classified landing boundaries.
Calculated from: stair-companion1013b-img_1260-m001
stair-c-w223-basement-first-flight-registerverified · printed
lower_flight_transverse_source_witness
3′10½″46.5 in
Basement lower horizontal flight transverse witness. Drawn enclosure/flight boundary references; rail-face clearance and wall finish build-up remain unclassified.
IMG_1260 · W-223 · Locate on drawing ↗Drawing notation: 3′10½″
Basement lower horizontal flight transverse witness. Drawn enclosure/flight boundary references; rail-face clearance and wall finish build-up remain unclassified.
stair-c-w223-basement-first-flight-registerverified · printed
upper_flight_transverse_source_witness
3′10½″46.5 in
Basement vertical upper flight transverse witness between shaft-side enclosure and outer wall line; not a certified rail-to-rail clear width.
IMG_1260 · W-223 · Locate on drawing ↗Drawing notation: 3′10½″
Basement vertical upper flight transverse witness between shaft-side enclosure and outer wall line; not a certified rail-to-rail clear width.
stair-c-w223-basement-first-flight-registerverified · printed
turn_landing_longitudinal_source_witness
4′1½″49.5 in
Basement right turn-landing horizontal witness from numbered flight junction station to inner drawn wall line. Floor/finish/wall face equivalence and exact landing perimeter remain open.
IMG_1260 · W-223 · Locate on drawing ↗Drawing notation: 4′1½″
Basement right turn-landing horizontal witness from numbered flight junction station to inner drawn wall line. Floor/finish/wall face equivalence and exact landing perimeter remain open.
stair-c-w223-basement-first-flight-registerverified · observed
lower_run_witness_endpoint_class
[11-tread product span is witnessed at numbered stations1 and12; right landing span begins at the12/13 turn junction]Classifies the printed115.5-in run already recorded in stair-closeout1013a-img_1113-m005. Run is a numbered flight projection, not the full enclosure or landing length.
IMG_1260 · W-223 · Locate on drawing ↗Drawing notation: [11-tread product span is witnessed at numbered stations1 and12; right landing span begins at the12/13 turn junction]
Classifies the printed115.5-in run already recorded in stair-closeout1013a-img_1113-m005. Run is a numbered flight projection, not the full enclosure or landing length.
Calculated from: stair-closeout1013a-img_1113-m005
stair-c-w223-basement-first-flight-registerverified · observed
signed_ascent_source_page
[numbered lower flight proceeds page-right; upper flight proceeds page-up around the right of Elevator No.2]Page-local progression from visible ascending numbered stations only. No world north/east assignment or endpoint elevation interpolation.
IMG_1260 · W-223 · Locate on drawing ↗Drawing notation: [numbered lower flight proceeds page-right; upper flight proceeds page-up around the right of Elevator No.2]
Page-local progression from visible ascending numbered stations only. No world north/east assignment or endpoint elevation interpolation.
stair-c-w223-basement-first-flight-registerverified · observed
ascent_turn_handedness_source_page
[left turn from page-right to page-up; counterclockwise in an x-right/y-up paper frame]Local source handedness only; not a surveyed building yaw or registration.
IMG_1260 · W-223 · Locate on drawing ↗Drawing notation: [left turn from page-right to page-up; counterclockwise in an x-right/y-up paper frame]
Local source handedness only; not a surveyed building yaw or registration.
stair-c-w223-basement-first-flight-registerunreviewed · printed
physical_clear_width_still_unresolved
[3′10½″ strip witnesses do not classify rail intrusions or rough/finished wall faces]Numeric value unresolved
No physical clear width adopted; printed strip widths remain separately verified.
IMG_1260 · W-223 · Locate on drawing ↗Drawing notation: [3′10½″ strip witnesses do not classify rail intrusions or rough/finished wall faces]
No physical clear width adopted; printed strip widths remain separately verified.
stair-c-w223-basement-first-flight-registerverified · observed
section_basement_finish_endpoint_class
FIN. BAST. FLOOR / FIN. 1ST FLOOR [vertical witness meets finish-floor surface references]C section B-B keeps its13ft basement region separate from E15ft; existing floor values retained. Crop does not classify every wall/rail line.
IMG_1113 · W-223 · Locate on drawing ↗Drawing notation: FIN. BAST. FLOOR / FIN. 1ST FLOOR [vertical witness meets finish-floor surface references]
C section B-B keeps its13ft basement region separate from E15ft; existing floor values retained. Crop does not classify every wall/rail line.
stair-c-w223-basement-first-flight-registerverified · printed
upper_flight_printed_tread_count
9 TREADS @ 10½″ = 7′10½″9 count
Original white printed drawing layer. Rotated vertical tread chain for upper perpendicular basement flight adjacent numbered risers 13–21. Printed tread quantity only; riser allocation and turning-landing boundaries remain separate.
IMG_1113 · W-223 · Locate on drawing ↗Drawing notation: 9 TREADS @ 10½″ = 7′10½″
Original white printed drawing layer. Rotated vertical tread chain for upper perpendicular basement flight adjacent numbered risers 13–21. Printed tread quantity only; riser allocation and turning-landing boundaries remain separate.
stair-c-w223-basement-first-flight-registerverified · printed
upper_flight_printed_tread_going
9 TREADS @ 10½″ = 7′10½″10.5 in
Original white printed drawing layer. Same upper perpendicular flight chain. No nosing/profile or accepted physical going.
IMG_1113 · W-223 · Locate on drawing ↗Drawing notation: 9 TREADS @ 10½″ = 7′10½″
Original white printed drawing layer. Same upper perpendicular flight chain. No nosing/profile or accepted physical going.
stair-c-w223-basement-first-flight-registerverified · printed
upper_flight_printed_run
9 TREADS @ 10½″ = 7′10½″94.5 in
Original white printed drawing layer. Printed chain product, not arithmetic completing total risers; witness face classification and installed span remain unresolved.
IMG_1113 · W-223 · Locate on drawing ↗Drawing notation: 9 TREADS @ 10½″ = 7′10½″
Original white printed drawing layer. Printed chain product, not arithmetic completing total risers; witness face classification and installed span remain unresolved.