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How Much Gravel for a 12×18 Shed pad?

The answer

2.93 ton

For a 12×18 ft shed pad at 4" depth, with 10% overage included. Estimated cost: $161 at US national average pricing.

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Area
Volume
With 10% overage
Or in 0.5 cu ft bag
Estimated cost (US avg)

How we calculated this

  1. 1. Area: 12 × 18 = 216 sq ft
  2. 2. Volume: 216 × (4/12) = 72 cubic feet
  3. 3. Convert + overage: Add 10% for waste → 2.93 ton
  4. 4. Cost: 2.93 × $55.00 ≈ $161

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