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How much concrete do you need to cover 21 sq ft and 2 inches thick?
Wiki User
∙ 13y ago
2 inches = 1/6 foot
1 cubic yard = 27 cubic feet
Volume = (21/6) = 3.5 cubic feet = 0.13 of a cubic yard. (rounded)
Your best bet could be to follow a concrete truck around for an hour ... they
probably clean that much off of the chute after they finish a normal-size pour.
Wiki User
∙ 13y ago
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