1 cubic yard covers 324 square feet per inch of thickness, divide 324 by thickness in inches to get coverage, i.e. 4 inches thick would cover 324/4=81 square feet, 36 inches thick would cover (you guessed it) 9 square feet.
For a 4-inch depth you will need 7.41 cubic yards.
2.25 square feet.
1704 8 in X 16 in face is .88 sq ft
If you use a standard 4-inch depth, you will need at least 8.9 cubic yards.
1000 square feet/9 = 111.1 square yards of concrete 6 inches thick. This is the same as 111.1/4.5 = 24.7 cubic yards of concrete.
A yard of concrete is a cubic yard and cannot be converted directly to square feet of coverage. You must first determine the depth or thickness that the concrete will be. For instance, since 1 cubic yard equals 27 cubic feet, a 1 foot thick layer of concrete will cover 9 square yards of area. A 4 inch (1/3 foot) thick layer would cover 27 square feet of area.
90 square feet
For a 4-inch thick slab, you will need at least 9.48 Cubic Yards.
1 cubic yard covers 324 square feet per inch of thickness, divide 324 by thickness in inches to get coverage, i.e. 4 inches thick would cover 324/4=81 square feet, 36 inches thick would cover (you guessed it) 9 square feet.
81 Square feet.
On average, concrete weighs about 12.5 pounds per square foot per inch thick. This can vary based on the type and density of the concrete mix.
roughly 240 square feet. Formula for figuring yardage is: (Width X Length X thickness)/27= cubic yardage of concrete. Just reverse the formula to solve for Width X Length or Square Feet. CY X 27 divided by thickness = square footage
explode
144
720 square feet at the standard 4-inch depth requires 8.9 cubic yards.
16.667 yards of concrete in a 30 ft x 30 ft x 6 in there are 27 cubic feet of concrete in one yard IE: 27 square ft, 12 inches thick or 54 square ft, 6 inches thick