How Much Sand for 400 Square Feet?
For 400 square feet of sand at 1 inches deep, you need about 1.23 cubic yards - roughly 67 bags (0.5 cu ft bag), about 1.67 tons. The amount changes with depth; the table below shows common depths, and you can adjust everything in the calculator.
Based on 400 square feet (400 sq ft). One cubic yard = 27 cubic feet; bags are 0.5 cu ft bag.
1 in for a paver setting bed, 2 in for leveling, deeper to fill a sandbox.
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You need about
Weight is an estimate (1.1-1.45 tons per cubic yard); actual weight varies with material and moisture.
For a paver or flagstone setting bed, a 1 inch layer of bedding sand is standard over a compacted base. For general leveling, 2 inches is typical. To fill a sandbox, measure the inside depth you want.
Enter length and width in feet and your depth; the calculator returns cubic yards, an estimated weight, and a bag count.
Other sand amounts
Same area, other materials
Need a different size? Open the full Sand calculator →