Cubic yards to tons
Volume in cubic yards = L × W × depth(in) ÷ 12 ÷ 27. Quarries sell by the ton, so multiply by density. Common crushed stone and pea gravel weigh about 1.3–1.5 tons per cubic yard; 1.4 is a sensible default. Ask your supplier for the exact figure for their material.
Typical depths
- Walkway: 2–3 in of decorative gravel over landscape fabric
- Driveway: 4–6 in base layer (larger crushed stone) plus 2 in top layer
- Patio/paver base: 4 in compacted base
Compaction
Crushed base compacts roughly 10–15%, so order a little extra for layers you plan to tamp.