How Much Road Base for a 300 Foot Driveway?
A 300-foot driveway at the common 12-foot width covers 3,600 square feet. Spread 4 inches deep, how much road base for a 300 foot driveway comes to roughly 66.7 tons.
Volume and tonnage calculator →The math
- Area: 3,600.0 sq ft.
- Depth in feet: 4 ÷ 12 = 0.333 ft.
- Cubic yards: 3,600.0 × 0.333 ÷ 27 = 44.44 yd³.
- Tons: × about 1.5 tons per yard = 66.7 tons.
The crushed stone calculator does this for any size.
Related: How Much Gravel for a 300 Foot Driveway?
Road base needed by depth
| Depth | Cubic yards | Tons of road base | Tons +10% |
|---|---|---|---|
| 2 in | 22.22 | 33.3 | 36.7 |
| 4 in | 44.44 | 66.7 | 73.3 |
| 6 in | 66.67 | 100.0 | 110.0 |
| 8 in | 88.89 | 133.3 | 146.7 |
Tons by driveway width
| Width | Tons at 4 in | Tons at 6 in |
|---|---|---|
| 10 ft | 55.6 | 83.3 |
| 12 ft | 66.7 | 100.0 |
| 14 ft | 77.8 | 116.7 |
| 16 ft | 88.9 | 133.3 |
Related: How Much Road Base for 300 Square Feet?
How many loads
With about 10 percent extra, this is 73.3 tons, roughly 5 loads if the yard runs 15-ton trucks. Ask the driver to tailgate-spread it along the drive to save hours of raking.
Layers for a lasting driveway
A new driveway usually starts with a larger base stone on compacted subgrade, then a top layer that packs. Topping up an existing drive takes much less, often 2 inches. Long drives benefit from a crown so water runs to the edges.
Buying the stone
Most quarries and landscape yards deliver by the ton; ask whether there is a minimum and a delivery fee, and where the driver can dump without damaging your lawn. Road base is a graded stone-and-fines mix built to compact into a load-bearing layer. Round up by about 10 percent for compaction and uneven ground.
Questions people ask
How many tons of road base for a 300 ft driveway?
About 66.7 tons at 12 ft wide and 4 inches deep.
How many truck loads for a 300 ft driveway?
About 5 loads of 15 tons, including some extra.
How many tons of road base are in a cubic yard?
Roughly 1.5 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 Road Base for a 200 Foot Driveway?
- How Much Road Base for a 250 Foot Driveway?
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