Tributary Area & Load Takedown

Center-to-center — feet or metric

Center-to-center — feet or metric

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

400 sf37.2 m²

Tributary area

20.0 kips89 kN

Member load

Interior column (4 bays) · 50 psf live

Assumptions & notes

  • 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).