How many square feet are in a yard of concrete 8 inches thick?

A "yard of concrete" typically refers to a cubic yard. To find the square footage for concrete 8 inches thick (which is 8/12 or 2/3 of a foot), you divide the cubic yardage by the thickness in feet. 1 cubic yard = 27 cubic feet. 27 cubic feet / (2/3 foot) = 27 * (3/2) = 81/2 = 40.5 square feet. Therefore, a yard of concrete 8 inches thick covers 40.5 square feet