How much concrete for a 10×12 slab 4 inches thick?
Answer
1.48 cubic yards
56 bags of 80lb concrete mix89 bags of 60lb mix~$222 for ready-mix
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How We Calculated This
Cubic yards = (L × W × D/12) / 27
(12 × 10 × 4/12) / 27 = 40.00 / 27 = 1.48 cubic yards
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Calculated using verified formulas. Last updated March 2026.