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How much concrete is needed for a 12 sq ft by 4 inch thick slab?
Wiki User
∙ 11y ago
(1.76 Yards.)--12ftx12ft=144Sq ft-----4in=.33ft-------144sq ft x.33ft=47.52 cubic ft
there are 27 cubic ft in a cu yd---(3ft x3ft x3ft = 27 cu ft)
47.52/27 = 1.76
Wiki User
∙ 11y ago
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concrete is sold in cubic yards in the united states. I hope you are using a 1/4 inch diameter reinforce mesh. 1680 / 81 = 20.74 cubic yards without subtracting the mesh volume.
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How much concrete is needed for a slab 1680 square feet by 4inches thick?
concrete is sold in cubic yards in the united states. I hope you are using a 1/4 inch diameter reinforce mesh. 1680 / 81 = 20.74 cubic yards without subtracting the mesh volume.
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you can do the math: LXWXD DIVIDED BY 27
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How much concrete is needed for a 14 x 3 x 2 inch deep walkway?
84 cubic inches!
