slab footing

A slab footing, also known as a slab-on-ground foundation, is a construction method where a concrete slab is laid directly on the ground to serve as the building's foundation. This type of foundation is common for low-rise residential buildings and some commercial structures.123

The slab footing supports the building's loads and transfers them to the earth. It's crucial that the bottom of the foundation is below the frost line to prevent damage from freezing and thawing cycles. Spread footings, which are wider bases of concrete, are often used to distribute the load over a larger area. In buildings without basements, a concrete grade beam supported by isolated footings, piers, or piles may be used at ground level to support exterior walls.43