Calculate exact gravel tonnage and cubic yards for driveways, French drains, walkways, and patio bases. Compares pea gravel, #57 crushed stone, crusher run, and decomposed granite.
| Material / Application | Standard Spec / Depth | Coverage / Weight | Field Note |
|---|---|---|---|
| Walkway / Garden Path (Gartenweg) | 2 – 3 inches (5 – 8 cm) | Pea Gravel, Decomposed Granite, 3/8" Chip | +10% compaction |
| Driveway Top Layer (Einfahrt Deckschicht) | 3 – 4 inches (8 – 10 cm) | #57 Crushed Stone (3/4" angular) | +12% compaction |
| Driveway Sub-Base (Einfahrt Tragschicht) | 4 – 6 inches (10 – 15 cm) | #3 Stone + Crusher Run (#411 with fines) | +15% plate compactor |
| Patio / Shed Pad (Terrassen-/Gartenhaus-Bett) | 4 – 6 inches (10 – 15 cm) | #57 Clean Angular Stone or Crusher Run | +12–15% compaction |
| French Drain Trench (Drainagegraben) | 12 – 24 inches (30 – 60 cm) | Washed #57 Stone or 3/4"–1.5" Drain Rock | +5% settling |
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A 100 ft × 12 ft single-lane driveway resurfaced at 4 inches deep requires 14.8 cubic yards net, or 16.6 cubic yards with a 12% compaction allowance — which equals roughly 22.4 US tons of #57 crushed stone (about 1.5 tri-axle dump truck loads).
Crushed stone has sharp, fractured edges that interlock under vehicle tires and a plate compactor. Pea gravel has smooth, rounded edges that roll like marbles under car tires, creating ruts unless stabilized inside a honeycomb gravel grid.
1 cubic yard (27 cu ft) covers 162 sq ft at 2 inches deep, 108 sq ft at 3 inches deep, 81 sq ft at 4 inches deep, and 54 sq ft at 6 inches deep.