How Much Concrete for a 8×12 Porch?
The answer
1.3 cubic yard
For a 8×12 ft porch at 4" depth, with 10% overage included. Estimated cost: $215 at US national average pricing.
Calculate Concrete
Common projects
You need
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cubic yard
- Area
- —
- Volume
- —
- With 10% overage
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- Or in 60 lb bag
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- Estimated cost (US avg)
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How we calculated this
- 1. Area: 8 × 12 = 96 sq ft
- 2. Volume: 96 × (4/12) = 32 cubic feet
- 3. Convert + overage: Add 10% for waste → 1.3 cubic yard
- 4. Cost: 1.3 × $165.00 ≈ $215
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