How Much Gravel for a 20×30 Driveway?

A 20×30-foot driveway at a 4-inch gravel depth needs about 7.41 cubic yards of gravel (roughly 10.4 tons). Build the depth up in compacted layers over a stable, well-drained base for longevity. The calculator below is pre-filled — adjust the depth or size for your driveway.

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