How many concrete bags for a 10x10x2?

To calculate the number of concrete bags needed for a 10x10x2 foot slab, first find the volume in cubic feet: 10 x 10 x 2 = 200 cubic feet. A standard 80-pound bag of concrete typically covers about 0.6 cubic feet. Therefore, you would need approximately 334 bags (200 ÷ 0.6 ≈ 333.33) of concrete to fill that volume.