What defines a supported slab foundation?

A supported slab foundation is characterized by its placement directly on a foundation. This type of foundation involves a concrete slab that is typically poured at ground level and designed to support the structure built upon it. The strength and stability provided by the foundational elements beneath the slab are crucial for preventing settling and ensuring the longevity of the structure.

This form of construction is common in areas where soil conditions allow for stable support, which is fundamental for the performance of the slab. Unlike standalone structures that operate independently or those surrounded by soil that may not provide the same level of support, a supported slab relies on the combination of its concrete slab and a proper foundation to distribute loads effectively.

While factors like reinforced steel may enhance firmness and soil properties are vital considerations, these do not specifically define the essence of a supported slab foundation in the way that its direct placement on a foundation does.