How Much Crushed Stone for a 100 Foot Driveway?
A 100-foot driveway at the common 12-foot width covers 1,200 square feet. Spread 4 inches deep, how much crushed stone for a 100 foot driveway comes to roughly 20.7 tons.
Volume and tonnage calculator →The math
- Area: 1,200.0 sq ft.
- Depth in feet: 4 ÷ 12 = 0.333 ft.
- Cubic yards: 1,200.0 × 0.333 ÷ 27 = 14.81 yd³.
- Tons: × about 1.4 tons per yard = 20.7 tons.
The crushed stone calculator does this for any size.
Related: How Much #57 Stone for a 100 Foot Driveway?
Crushed stone needed by depth
| Depth | Cubic yards | Tons of crushed stone | Tons +10% |
|---|---|---|---|
| 2 in | 7.41 | 10.4 | 11.4 |
| 4 in | 14.81 | 20.7 | 22.8 |
| 6 in | 22.22 | 31.1 | 34.2 |
| 8 in | 29.63 | 41.5 | 45.6 |
Tons by driveway width
| Width | Tons at 4 in | Tons at 6 in |
|---|---|---|
| 10 ft | 17.3 | 25.9 |
| 12 ft | 20.7 | 31.1 |
| 14 ft | 24.2 | 36.3 |
| 16 ft | 27.7 | 41.5 |
Related: How Much Road Base for a 100 Foot Driveway?
How many loads
Plan for about 22.8 tons with waste. On a 15-ton truck that is about 2 trips; spreading while dumping (a tailgate spread) puts the stone close to where it belongs.
Base and top layer
If this is a new driveway on soil, build a base of 4 to 6 inches of coarse stone first and finish with a packable surface stone. For a refresh, 2 inches over the old surface is common. Fabric under the base helps on clay or wet ground.
Getting it delivered
If you haul it yourself, a typical half-ton pickup should carry only about half a cubic yard of stone, well under what the bed looks like it can hold. Crushed stone has angular faces that lock together under a compactor, which is why it holds a pad shape. Round up by about 10 percent for compaction and uneven ground.
Questions people ask
How many tons of crushed stone for a 100 ft driveway?
About 20.7 tons at 12 ft wide and 4 inches deep.
How many truck loads for a 100 ft driveway?
About 2 loads of 15 tons, including some extra.
How many tons of crushed stone are in a cubic yard?
Roughly 1.4 tons for planning, but suppliers vary with stone size and moisture.
Do I need to compact it?
Yes for anything that carries weight. Compact in lifts of a few inches with a plate compactor.
Related guides
- How to Build a Gravel Driveway That Lasts
- How Much Gravel for a 100 Foot Driveway? Tons by Depth
- A Passing Pullout on a Long Driveway
- How Much Does a Ton of Gravel Cover? Depth Chart
- Tons to Cubic Yards for Gravel: Conversion Chart
- Crushed Stone vs Gravel: Differences and Best Uses
- Geotextile Fabric for Driveways: Woven vs Nonwoven and How Much You Need
- Compacting a Driveway Gravel Base in Lifts
- How Much Crushed Stone for a 50 Foot Driveway?
- How Much Crushed Stone for a 75 Foot Driveway?
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