Pier & Beam Footing Calculator
Estimate footing pad size from point load and soil bearing capacity.
Estimate only — not a substitute for a licensed tradesperson, a certified engineer, or sign-off from your local building surveyor. Verify against current standards and site conditions before ordering materials or starting work.
Result
- Required footing area
- 0.2m²
- Equivalent round pad diameter
- 504.63mm
Soil bearing capacity must come from an actual geotechnical report or AS 2870 site classification, not assumed. This is an indicative sizing calculation only.
What this is based on
Governed by AS 2870 (Residential slabs and footings) and site classification. Footing sizing depends on soil class, which this calculator does not and cannot determine. Use AS 2870 with a site classification, or an engineer.
We cite the clause and link to the publisher so you can read the source yourself. We do not reproduce the text or tables of the NCC or of any Australian Standard.