How much concrete for a 8×14 slab 8 inches thick?
Answer
2.77 cubic yards
104 bags of 80lb concrete mix166 bags of 60lb mix~$416 for ready-mix
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How We Calculated This
Cubic yards = (L × W × D/12) / 27
(14 × 8 × 8/12) / 27 = 74.67 / 27 = 2.77 cubic yards
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Calculated using verified formulas. Last updated March 2026.