The measured building.

footing size · width

192 in

footing size · length

168 in

footing size · thickness

42 in

footprint.eastHalfSpanFromColumnAxis

8 ft

Nominal footing envelope only; source audit state: checked-master-crop-single-reader. Page-left segment from the C4 column axis to the eastern footing edge.

footprint.westHalfSpanFromColumnAxis

8 ft

Nominal footing envelope only; source audit state: checked-master-crop-single-reader. Page-right segment from the C4 column axis to the western footing edge.

footprint.longAxisAngleFromWorldX

0 degree

Nominal footing envelope only; source audit state: checked-master-crop-single-reader. The explicit horizontal 8′0″ + 8′0″ chain establishes a 16′ span parallel to world X/Madison. Rectangle angle is modulo 180°.

footprint.worldXSpan

16 ft

Nominal footing envelope only; source audit state: checked-arithmetic-from-source-linked-parents. The plan chain independently identifies which scheduled dimension belongs to X.

Calculated from: footing-4-placement-east-half-span, footing-4-placement-west-half-span, foundation-main-4-footing-widthInches

footprint.worldZSpan

14 ft

Nominal footing envelope only; source audit state: calculated-from-reused-schedule-and-new-plan-audit. The remaining scheduled rectangle side is Z, perpendicular to the observed X side.

Calculated from: footing-4-placement-long-axis-world-x, foundation-main-4-footing-lengthInches

envelope.height

3.5 ft

Nominal footing envelope only; source audit state: reused-text-extraction; arithmetic-checked; schedule-not-reopened.

Calculated from: foundation-main-4-footing-thicknessInches

footing.cgOffsetWorldX

0 in

Nominal footing envelope only; source audit state: checked-arithmetic-from-source-linked-parents. Equal half spans place the nominal rectangular footprint center on C4's world-X coordinate.

Calculated from: footing-4-placement-east-half-span, footing-4-placement-west-half-span

footing.cgOffsetWorldZSign

-1 ratio

Nominal footing envelope only; source audit state: checked-master-crop-single-reader. On the actual C4/Madison plan, the labeled footing centerline lies above the steel-column centerline. Page-up is south/−Z. This sign is read on the actual plan, not transferred from the detached typical diagram.

footing.cgOffsetWorldZ

-1.25 in

Nominal footing envelope only; source audit state: checked-sign-on-plan; magnitude-reused-from-W409-audit. W409 establishes E as footing C.G. to steel-column C.L. and C4 suffix b; it is not the base-plate offset E′.

Calculated from: footing-4-placement-offset-z-sign, first-column-c4-footing-eccentricity

footing.cgWorldX

-34 ft

Nominal footing envelope only; source audit state: checked-arithmetic-from-source-linked-parents. Exact arithmetic in the drawing control convention; no survey/as-built precision claim.

Calculated from: column-4-registered-world-x, footing-4-placement-offset-x

footing.cgWorldZ

-78.6875 ft

Nominal footing envelope only; source audit state: checked-arithmetic-from-source-linked-parents. Center is 78′8¼″ south of the project origin.

Calculated from: column-4-registered-world-z, footing-4-placement-offset-z

envelope.bottomElevation

72.75 ft

Nominal footing envelope only; source audit state: reused-text-extraction; checked-existing-calculation.

Calculated from: foundation-finished-basement-floor-elevationFeet, first-column-c4-footing-depth

envelope.topElevation

76.25 ft

Nominal footing envelope only; source audit state: checked-arithmetic-from-source-linked-parents. Overall footing envelope only; no cap, grout or base-plate top is inferred.

Calculated from: footing-4-placement-bottom-el, footing-4-placement-thickness

envelope.minX

-42 ft

Nominal footing envelope only; source audit state: checked-arithmetic-from-source-linked-parents.

Calculated from: footing-4-placement-center-x, footing-4-placement-span-x

envelope.maxX

-26 ft

Nominal footing envelope only; source audit state: checked-arithmetic-from-source-linked-parents.

Calculated from: footing-4-placement-center-x, footing-4-placement-span-x

envelope.minZ

-85.6875 ft

Nominal footing envelope only; source audit state: checked-arithmetic-from-source-linked-parents.

Calculated from: footing-4-placement-center-z, footing-4-placement-span-z

envelope.maxZ

-71.6875 ft

Nominal footing envelope only; source audit state: checked-arithmetic-from-source-linked-parents.

Calculated from: footing-4-placement-center-z, footing-4-placement-span-z

envelope.centerElevation

74.5 ft

Nominal footing envelope only; source audit state: checked-arithmetic-from-source-linked-parents.

Calculated from: footing-4-placement-bottom-el, footing-4-placement-top-el