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252 cubic yards

I'm sure that the "7 thick" meant 7 inches thick.

In that case, it will be 63 cu.ft. = 2.33333 cu.yds.

Should the wall have an unlikely thickness of 7 feet, then the volume would be 28.0 cu.yds.

(1 cu.yd. = 27 cu.ft.)

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13y ago

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