The st to build a 1,350-square-foot raft foundation is an average of $10,125. Reinforcing the ncrete with rebar sts an additional $1 to $2 per square foot. Mat or raft foundations are used where there are poor ground nditions, such as soil that is unable to bear any loads. The ncrete slab rests on steel-reinforced soil, lumns, or walls.
Get price >>