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How Much Mulch for a 4×8 Patio?

The answer

0.41 cubic yard

For a 4×8 ft patio at 4" depth, with 5% overage included. Estimated cost: $19 at US national average pricing.

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cubic yard

Area
Volume
With 5% overage
Or in 2 cu ft bag
Estimated cost (US avg)

How we calculated this

  1. 1. Area: 4 × 8 = 32 sq ft
  2. 2. Volume: 32 × (4/12) = 10.67 cubic feet
  3. 3. Convert + overage: Add 5% for waste → 0.41 cubic yard
  4. 4. Cost: 0.41 × $45.00 ≈ $19

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