Four common types of foundation include which of the following?

• A. Footers, Foundation Walls, Slabs, Caissons
• B. Slabs, Footers, Columns, Beams
• C. Piles, Basements, Slabs, Footers
• D. Foundations only

Answer: (A)

Foundations transfer a structure’s load to the ground, and several form types are commonly used. The four you’d typically see listed as foundation types are footers (footings), foundation walls, slabs, and caissons. Footers spread the load from walls or columns over a larger soil area. Foundation walls carry loads from above-grade walls down to the footings. Slabs, usually slab-on-grade, provide a flat base that distributes loads and serves as the floor. Caissons are deep foundations that reach down to stronger soil or rock via drilled shafts or piers to transfer the load deeper.

This combination covers both shallow foundations (footers, walls, slabs) and a deep foundation method (caissons). Other options mix in structural framing elements like columns and beams, which are part of the building frame rather than foundation types, or describe spaces rather than actual foundation types.