📖 Structural Term

Footing (Foundation)

Definition

A footing is the structural element at the base of a column or wall that transfers the building's load to the ground soil below.

Explained Simply

Footings distribute the concentrated load from columns over a larger soil area to stay within the safe bearing capacity of the soil. Common types in residential construction include isolated column footings, strip footings under walls, and raft foundations. The type and size of footing is determined by the soil's bearing capacity (from SBC test) and the structural load.

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Why This Matters for Homeowners

Underpowered footings — too small for the soil condition — cause differential settlement and structural cracking. Always base foundation design on an SBC lab test.

⚠ Common Mistake

Designing footings without a Soil Bearing Capacity (SBC) test — using assumed soil bearing values that may not match the actual site conditions.