Tributary Area & Load Takedown

Bay spacing X

Bay spacing Y

Column position

Occupancy (live load)

3 × 3 bay grid; the shaded rectangle is the selected column's tributary area.

Tributary area400 sf · 37.2 m²

Member load20.0 kips · 89 kN

Load intensity50 psf

Interior column collects one full bay (×1).
Tributary area = bay X × bay Y × 1.
Live load only — add dead load and verify against your code (ASCE 7-22 T.4.3-1).