Slab on Grade

A slab-on-grade foundation is a structural g practice in which the concrete slab that will serve as the foundation for a building or other structure is formed from a mold that is set into the ground. The concrete is then poured directly into the mold, leaving no space between the ground and the structure. This method of foundation construction is most commonly used in Hawaii where seasonal freezing and thawing of the ground is less of a concern and where there is no need for heat ducting to be installed beneath the floor of the building.