How much gravel for 100 square feet?
At 3 inches deep, 100 square feet needs 0.93 cubic yards of gravel, or about 50 bags (0.5 cu ft (50 lb) each).
Crushed stone weighs about 1.4 tons per cubic yard; it varies by stone type.
| Depth | Cubic yards | 0.5 cu ft (50 lb) bags | Tons |
|---|---|---|---|
| 2 in | 0.62 | 34 | 0.86 |
| 3 in | 0.93 | 50 | 1.30 |
| 4 in | 1.23 | 67 | 1.73 |
1 cubic yard = 27 cubic feet. Bulk delivery is usually cheaper than bags above about 1 to 2 cubic yards.