Gravel Calculator

Walkways and decorative areas need 2–3 inches of gravel; driveways need 4 inches or more, usually in two compacted layers over a base. Gravel weighs about 1.4 tons per cubic yard.

For driveways, order crushed stone with fines (e.g. #57 over a crusher-run base) rather than round pea gravel, which never locks in place.