How to Pour a Concrete Slab Successfully — The Family Handyman
Aug 29, 2019 · Start by choosing straight form boards. For a 5-in.-thick slab with thickened edges, which is perfect for most garages and sheds, 2×12 boards work best. For a driveway or other slab without thickened edges, use 2x6s. If you can’t get long enough boards, splice them together by nailing a 4-ft. 2×12 cleat over the joint.