How much concrete for a 14×50 slab 5 inches thick?
Answer
10.80 cubic yards
405 bags of 80lb concrete mix649 bags of 60lb mixOrder ready-mix delivery (~$1,620)Add 10% for waste = 11.88 cy
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How We Calculated This
Cubic yards = (L × W × D/12) / 27
(50 × 14 × 5/12) / 27 = 291.67 / 27 = 10.80 cubic yards
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Calculated using verified formulas. Last updated March 2026.