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Q: How many cubic feet in a square yard of concrete?

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1 cubic yard of concrete fills 27/depth in feet square feet.

81 Square feet.

The depth is needed to calculate that.

you can not answer that as area and length are different

This is not a correct conversion. Cubic feet is a measure of volume while square feet is a measure of area.

1 cubic yard of concrete fills 27/depth in feet square feet.

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.

ONE I THINK, SINCE THERE ARE 27 CUBIC FEET IN A CUBIC YARD OF CONCRETE (WHICH MEASURES 3 FEET BY 3 FEET BY 3 FEET).

Square yards or square feet and cubic feet or cubic yards do not convert. Square is a measurement of area, and cubic is a measurement of volume. One cubic yard equals 27 cubic feet, and 1 square yard equals 9 square feet. Sand, dirt, concrete, debris, etc. are measured in cubic yards. To determine how many square yards a cubic yard of something will cover, you must first determine how thick a layer will be. For instance, using a single cubic yard of concrete, a concrete slab 3 feet thick will cover an area of 9 square feet or 1 square yard, while that same cubic yard of concrete, if poured only 1 foot thick, would cover 27 square feet of area. The area covered cannot be converted directly to cubic units until the factor of depth is included in the calculation.

81

You cannot "fill" a cubic measurement with a square measurement.I think you meant cubic yards.1 cubic yard = 27 cubic feet.Your concrete slab is 1600 x 4/12 cubic feet = 533.333333... cubic feet.533.333333... cubic feet / 27 = 19.753 cubic yards (rounded to third decimal).

It depends upon how thick you want the concrete. For example, if you want the concrete to be 6 inches thick, then you will need 200 cubic feet. There are 27 cubic feet per cubic yard; so divide the 200 cubic feet by 27 to get 7.4 cubic yards.

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