Concrete slab sizes
This index lists every concrete slab size with its own precomputed page on the site. Each page shows bag count and approximate cost at a 4 inch thickness. These are common dimensions, not every possible size. If you do not see your size, use the concrete calculator for any length and width.
8x8concrete slab8x10concrete slab8x12concrete slab10x10concrete slab10x12concrete slab10x14concrete slab10x16concrete slab10x20concrete slab12x12concrete slab12x14concrete slab12x16concrete slab12x18concrete slab12x20concrete slab12x24concrete slab14x14concrete slab14x16concrete slab15x15concrete slab16x16concrete slab16x20concrete slab16x24concrete slab18x18concrete slab18x20concrete slab20x20concrete slab20x24concrete slab20x30concrete slab20x40concrete slab24x24concrete slab24x30concrete slab25x25concrete slab30x30concrete slab30x40concrete slab40x40concrete slab40x60concrete slab26x26concrete slab