What is Rat Slab?
Definition of Rat slab in Construction
Basically the same as a mud slab. A thin application of concrete over, normally, a dirt basement floor. The Rat slab cleans up the surface, and allows sweeping and general cleaning . Normally the rat slab is installed, unreinforced, and in areas that have very little traffic. The term rat slab is a mud slab and the terms are interchangeable.