Q:

# How many square feet are there in a yard of concrete?

A:

Concrete is sold in cubic yards, so the number of square feet in that yard depends upon how deep the concrete is poured. Concrete can be poured in different amount of thickness.

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For instance, if the slab being put in is 4 inches thick, one cubic yard of concrete covers 81 square feet. If it is 8 inches thick, a cubic yard fills 41 square feet. If the slab is 1 foot thick, a cubic yard covers only 21 square feet. Concrete spills, and the surface being filled is sometimes uneven. To be sure that there's sufficient concrete for the job, purchase approximately 10 to 15 percent more concrete than what is expected.

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## Related Questions

• A:

Three feet make 1 yard in the U.S. customary system of measurement. Yards are also units of length in the imperial system and the English system, but the size of the yard is slightly different between these systems. A yard is equal to 0.91 meters in the metric system.

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• A:

A 1-yard distance is equivalent to 3 feet. If a driveway is 15 yards long, simply multiply 15 by 3 to find the number of feet. The length of a 15-driveway would be 45 feet.

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There are 43,560 square feet in an acre. An acre is a measure of land area in Imperial units, and a square foot is the area enclosed by a square with each side being 1 foot long.