What are thick concrete blocks under cabin called?

Question

What are these concrete slabs/blocks/pads called? They look similar to a patio slab, except they're thicker and used to elevate a cabin or other building off of the ground.

Answer 1

Useful terms:

• Precast footings
• Concrete foundation pads

Caveats about use of such products:

• Substrate must be suitable inorganic soil. Black dirt and other unstable or uncompacted soils will allow severe settling.

• Expect to have to jack and shim after rough construction. The weight of the building will probably cause some shifting.

• Most building codes require frost footings to a depth appropriate for your climate. This isn't something to avoid because you can. It's good practice.

Answer 2

• Concrete Foundation Block
• Concrete Footing Block

Answer 3

In Ontario, Canada, they are often called "cottage pads," since they are most often used for cottage foundations.