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How Much Topsoil for a 30×30 Lawn?

The answer

11.67 cubic yard

For a 30×30 ft lawn at 4" depth, with 5% overage included. Estimated cost: $443 at US national average pricing.

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cubic yard

Area
Volume
With 5% overage
Or in 1 cu ft bag
Estimated cost (US avg)

How we calculated this

  1. 1. Area: 30 × 30 = 900 sq ft
  2. 2. Volume: 900 × (4/12) = 300 cubic feet
  3. 3. Convert + overage: Add 5% for waste → 11.67 cubic yard
  4. 4. Cost: 11.67 × $38.00 ≈ $443

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