Gravel for a 20×30 area at 3" deep
A 20 ft × 30 ft area filled 3 inches deep with gravel needs the amounts below.
Gravel needed
5.56cubic yards
150
cubic feet
7.8
tons (approx)
75
2 ft³ bags
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Different size, depth, or material? Use the full gravel calculator for gravel, sand, topsoil, or mulch.
For an area this size, bulk delivery by the cubic yard is usually far cheaper than bags — about 7.8 tons.