How many pounds of concrete to cover 400sq ft?

Answer 1

To determine how many pounds of concrete are needed to cover 400 square feet, you first need to know the desired thickness of the concrete slab. For example, if you want a thickness of 4 inches (0.33 feet), you would calculate the volume in cubic feet: 400 sq ft x 0.33 ft = 132 cubic feet. Since one cubic foot of concrete weighs approximately 150 pounds, you would need about 19,800 pounds of concrete (132 cubic feet x 150 lbs/cubic foot).