How deep? Are you talking about dry mix weight or finished weight?
Concrete weighs 150 pounds per cubic foot. So if you have a 6" slab, that's 150# for 2 square feet. For a 4" slab, the same amount will cover 3 square feet. For a 3" slab, 4 square feet.
Concrete mix is commonly sold in 80 pound bags. The finished weight is the mix plus the water that gets chemically bound to it. There's a guide on the bag telling how many bags you need for a given area and thickness.
1 cubic yard of concrete fills 27/depth in feet square feet.
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.
To what depth?
A 60-pound bag of concrete mix typically yields about 0.45 cubic feet of concrete. To convert this to square feet, you need to know the thickness of the slab you plan to pour. For example, if you're pouring a 4-inch thick slab, the 60-pound bag would cover approximately 13.5 square feet.
1 cubic yard of concrete fills 27/depth in feet square feet.
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
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.
If it is the same as concrete it will cover 162 square feet. concrete covers 81 square feet by 4" deep
27 square feet at 1 f thick
About 162sf.
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.
go to any search. and type in concrete calculater
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.
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