81 square feet
it equals nine square feet * * * * * Nine square feet is 1 square yard, NOT 1 yard. In any case, "a yard" of concrete is used by builders' merchant to mean a CUBIC yard 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.
A cubic yard is 46,656 cubic inches. Spread to a thicknes of 5 inches, a cubic yard of concrete covers 9332.1 square inches, which is 64.8 square feet.
about 26.4 is the volume i think.......
One square yard is nine square feet, so 27 square feet is equivalent to 3 square yards. So 3 yards of concrete will cover 27 square feet.
81 square feet
27 square feet at 1 f thick
About 162sf.
it equals nine square feet * * * * * Nine square feet is 1 square yard, NOT 1 yard. In any case, "a yard" of concrete is used by builders' merchant to mean a CUBIC yard of concrete.
90
30' x 20' (600 square feet) = 66.6 square 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.
how may yards of concrete are needed for a floor 24 x 25 feet?
39.1116 cubic yards
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.
A cubic yard is 46,656 cubic inches. Spread to a thicknes of 5 inches, a cubic yard of concrete covers 9332.1 square inches, which is 64.8 square feet.