How many yards of concrete do you need for a 40'x40' 4 inches thick?

Answer 1

To calculate the volume of concrete needed, first convert the dimensions to feet: 40 feet by 40 feet at a thickness of 4 inches (which is 1/3 of a foot). The volume in cubic feet is calculated as 40 ft x 40 ft x (1/3 ft) = 533.33 cubic feet. Since there are 27 cubic feet in a cubic yard, divide by 27 to convert to yards: 533.33 ÷ 27 ≈ 19.7 cubic yards. You would need approximately 19.7 yards of concrete.