How many yards of soil for 20 foot by 20 foot area?

To calculate the amount of soil needed for a 20-foot by 20-foot area, first determine the square footage, which is 400 square feet (20 ft x 20 ft). If you want to fill this area to a depth of 1 foot, you would need 400 cubic feet of soil. Since there are 27 cubic feet in a cubic yard, divide 400 by 27, resulting in approximately 14.81 cubic yards of soil needed. If you need a different depth, adjust the calculations accordingly.