What is a mat foundation?

A mat foundation, according to the Dictionary of Construction, is a continuous foundation with a thick slab that supports a whole structure. The foundation is shallow and poured over reinforcing mats.

Mat foundations go by the name of raft foundations in specific regions. The foundation is typically utilized to evenly distribute the weight of a building. Mat foundations are suitable for many different environments, including areas with poor soil, uneven soil or a risk of sinkholes. The style and depth of the foundation varies depending on the project specifications. Engineers find mat foundations useful when space is required below a structure.