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Tons of Asphalt Millings per 100 Feet of 12 ft Road

Tons of asphalt millings per 100 feet of 12 foot road: about 19 tons at 4 inches deep. The strip is 12 ft × 100 ft = 1,200 square feet. Shoulders, pullouts and turnarounds add to the total; measure them separately.

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Tons by depth

DepthTonsTruckloads (~14 t)
3 in142
4 in192
6 in293
8 in393

The math

  1. Area: 12 × 100 = 1,200 sq ft.
  2. Volume at 4 in: 1,200 × 0.333 = 400 cu ft (15 cubic yards).
  3. × 1.3 tons per yard = 19 tons.

Road section basics

At 12 feet wide, this is a single-lane private road or farm lane. Asphalt millings are ground-up old pavement. When compacted and warmed by sun they bind into a fairly firm surface, which is why they are popular for rural drives and lots. 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 asphalt millings

Best suited to:

  • Rural driveways and farm lanes
  • Parking areas where a dust-free surface is wanted
  • Low-cost base under a future paved surface

Less suited to:

  • Areas near wells or streams where local rules limit them
  • Decorative or barefoot areas
  • Jobs needing a uniform, clean look

Quick reference numbers

  • Per inch over 100 sq ft: about 0.40 tons of asphalt millings (0.31 cubic yards).
  • Per inch over 1,000 sq ft: about 4.0 tons.
  • Another size for comparison: a 20x25 area at 3 inches takes about 6.0 tons.
  • Weight used here: about 1.3 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.
  • Forgetting that compaction shrinks loose material. A loose 4-inch spread of a dense-graded stone may finish closer to 3 inches after rolling.
  • 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.

Questions people ask

How many tons of asphalt millings per 100 feet of 12 ft road?

About 19 tons at 4 inches.

How many truckloads is that?

About 2 loads at roughly 14 tons each.

How many square feet is 100 feet of 12 ft road?

1,200 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

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