Tons of Crushed Stone per Mile of 20 ft Road
Tons of crushed stone per mile of 20 foot road: about 1,825 tons at 4 inches deep. The strip is 20 ft × 5,280 ft = 105,600 square feet. Shoulders, pullouts and turnarounds add to the total; measure them separately.
Volume and tonnage calculator →Tons by depth
| Depth | Tons | Truckloads (~14 t) |
|---|---|---|
| 3 in | 1,369 | 98 |
| 4 in | 1,825 | 131 |
| 6 in | 2,738 | 196 |
| 8 in | 3,650 | 261 |
The math
- Area: 20 × 5,280 = 105,600 sq ft.
- Volume at 4 in: 105,600 × 0.333 = 35,200 cu ft (1,304 cubic yards).
- × 1.4 tons per yard = 1,825 tons.
Building a road this width
At 20 feet wide, two cars can meet with care. Crushed stone has fractured faces, so the pieces interlock when compacted. That is why it holds a driveway or pad shape better than round stone of the same size. Crown the surface so water sheds to ditches on both sides.
Practical notes
- Phasing. Large tonnages are delivered over days; schedule spreading and compaction to keep up with trucks.
- Waste. Allow 5 to 10 percent.
- Hauling. Distance from the quarry or plant often costs as much as the material on long jobs; see asphalt hauling cost per ton.
Check other sizes with the volume and tonnage calculator.
When to choose crushed stone
Best suited to:
- Driveway top courses and parking pads
- Shed and hot tub bases
- Backfill behind walls when a clean size is used
Less suited to:
- Barefoot areas, since angular stone is rough
- Play areas
- Places that need a smooth rolling surface for wheels
Quick reference numbers
- Per inch over 100 sq ft: about 0.43 tons of crushed stone (0.31 cubic yards).
- Per inch over 1,000 sq ft: about 4.3 tons.
- Another size for comparison: a 15x30 area at 4 inches takes about 7.8 tons.
- Weight used here: about 1.4 tons per cubic yard.
Common estimating mistakes
- Ignoring the base. A thin surface layer over soft soil fails early no matter how much material is on top.
- Using inches as if they were feet. Depth has to be divided by 12 before you multiply; skipping that step inflates the order twelvefold.
- Measuring only the main rectangle. Aprons, turnouts and curved edges add real square footage.
- Assuming every supplier uses the same weight. Two yards selling the same product name can quote different tons per yard.
Questions people ask
How many tons of crushed stone per mile of 20 ft road?
About 1,825 tons at 4 inches.
How many truckloads is that?
About 131 loads at roughly 14 tons each.
How many square feet is mile of 20 ft road?
105,600 square feet.
Should I add extra for waste?
Yes, 5 to 10 percent is common.
Does this include the shoulders?
No. Measure shoulders and pullouts separately and add them.
Related guides
- How Many Tons of Gravel in a Dump Truck? Loads and Coverage
- Asphalt Hauling Cost Per Ton: What Drives the Delivered Price
- Crushed Stone vs Gravel: Differences and Best Uses
- Tons of Crushed Stone per Mile of 18 ft Road
- Tons of Crushed Stone per 100 Feet of 18 ft Road
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