Concrete Slab Installation Cost
Most of what you pay for in a slab sits below the finished surface. We strip the topsoil, compact the subgrade and spread a crushed stone base before a truck ever shows up. Pacolet soil, the dominant type in Gwinnett County, drains well, but it changes from lot to lot, so every site gets tested on its own. A residential slab usually pours four inches thick over rebar or wire mesh. Extra thickness, heavier reinforcement and more digging on a sloped lot all move the figure.