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How Much Concrete for a 6×6 Garage floor?

The answer

0.49 cubic yard

For a 6×6 ft garage floor at 4" depth, with 10% overage included. Estimated cost: $81 at US national average pricing.

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cubic yard

Area
Volume
With 10% overage
Or in 60 lb bag
Estimated cost (US avg)

How we calculated this

  1. 1. Area: 6 × 6 = 36 sq ft
  2. 2. Volume: 36 × (4/12) = 12 cubic feet
  3. 3. Convert + overage: Add 10% for waste → 0.49 cubic yard
  4. 4. Cost: 0.49 × $165.00 ≈ $81

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