How much concrete for a 6×24 slab 6 inches thick?
Answer
2.67 cubic yards
101 bags of 80lb concrete mix160 bags of 60lb mix~$401 for ready-mix
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How We Calculated This
Cubic yards = (L × W × D/12) / 27
(24 × 6 × 6/12) / 27 = 72.00 / 27 = 2.67 cubic yards
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Calculated using verified formulas. Last updated March 2026.