r/Geotech•
Bildipil

Gross vs Net Bearing Pressure for Raft and Spread Footings?

Hi all,

I'm confused about whether to use the gross or net allowable bearing pressure from the geotechnical report for:Raft foundations and Individual spread footings

Currently, I'm using gross allowable bearing pressure for both, with the reasoning that in a basement, the excavated soil weight is replaced by the foundation/superstructure load.

Is this the correct approach, or should I be using the net allowable bearing pressure instead? I'd appreciate any explanation.

Thanks!

Posted Jul 15, 2026, 1:58 PM UTC

35
Loading comments…