Tons of Crusher Run per 100 Feet of 20 ft Road
Tons of crusher run per 100 feet of 20 foot road: about 57 tons at 6 inches deep. The strip is 20 ft × 100 ft = 2,000 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 | 29 | 3 |
| 4 in | 38 | 3 |
| 6 in | 57 | 5 |
| 8 in | 77 | 6 |
The math
- Area: 20 × 100 = 2,000 sq ft.
- Volume at 6 in: 2,000 × 0.500 = 1,000 cu ft (37 cubic yards).
- × 1.55 tons per yard = 57 tons.
Building a road this width
At 20 feet wide, two cars can meet with care. Crusher run (also sold as crush and run, dense-grade aggregate or QP in some regions) mixes stone with stone dust. It compacts into a firm, nearly solid layer, which makes it the usual base under pavers, asphalt and gravel drives. 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 crusher run
Best suited to:
- Base under asphalt, pavers or concrete
- Gravel drives that need a firm, packed surface
- Shed pads and equipment pads
Less suited to:
- Drainage layers, since the fines slow water
- Decorative beds
- Spots where you want water to soak straight through
Quick reference numbers
- Per inch over 100 sq ft: about 0.48 tons of crusher run (0.31 cubic yards).
- Per inch over 1,000 sq ft: about 4.8 tons.
- Another size for comparison: a 20x25 area at 2 inches takes about 4.8 tons.
- Weight used here: about 1.55 tons per cubic yard.
Where estimates go wrong
- Ordering exactly the math. Uneven ground and spillage nearly always need a little more than the flat calculation.
- 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.
- Skipping drainage. Water sitting under any surface softens the base and leads to ruts and potholes.
Questions people ask
How many tons of crusher run per 100 feet of 20 ft road?
About 57 tons at 6 inches.
How many truckloads is that?
About 5 loads at roughly 14 tons each.
How many square feet is 100 feet of 20 ft road?
2,000 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 Crusher Run per 100 Feet of 18 ft Road
- Tons of Crusher Run per Mile of 20 ft Road
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