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How Much Asphalt Millings for a 12x250 Driveway?

How much asphalt millings for a 12x250 driveway is a quick volume problem. 3,000 square feet at 4 inches comes to 37.04 cubic yards. Asphalt millings usually weighs about 1.2 to 1.4 loose tons per cubic yard, so plan on roughly 48.1 tons.

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The math for a 12x250 driveway

  1. Area: 12 × 250 = 3,000 sq ft.
  2. Depth in feet: 4 ÷ 12 = 0.333 ft.
  3. Cubic feet: 3,000 × 0.333 = 1,000.0 cu ft.
  4. Cubic yards: ÷ 27 = 37.04 yd³.
  5. Tons: × 1.3 = 48.1 tons.

The volume and tonnage calculator does this for any size.

Asphalt millings needed by depth

DepthCubic yardsTons (approx.)Tons +10%
3 in27.7836.139.7
4 in37.0448.153.0
6 in55.5672.279.4

About asphalt millings

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. If the yard sells by the cubic yard instead of the ton, use the cubic-yard column directly.

Preparing the driveway

Strip sod and soft topsoil, grade for drainage and compact the subgrade before any stone goes down. Gravel drives last longer with a compacted base layer under the top stone and a slight crown so water runs off. For car and truck traffic, the depths in the table above are a reasonable starting range.

Ordering tips

  • Round up. Compaction and uneven ground eat material. Adding about 10 percent is common.
  • Delivery size. 53.0 tons may take more than one typical dump truck load; small loads may carry a delivery fee. See how many tons of gravel in a dump truck.
  • Bulk vs bags. At this size bulk delivery is usually the practical choice.
  • Where it drops. Have the truck dump as close to the driveway as firm ground allows.

Good and poor uses for 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

Poor fit for:

  • 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 4 inches takes about 8.0 tons.
  • Weight used here: about 1.3 tons per cubic yard.

Mistakes that throw off the order

  • Ordering exactly the math. Uneven ground and spillage nearly always need a little more than the flat calculation.
  • Skipping drainage. Water sitting under any surface softens the base and leads to ruts and potholes.
  • Ignoring the base. A thin surface layer over soft soil fails early no matter how much material is on top.
  • Measuring only the main rectangle. Aprons, turnouts and curved edges add real square footage.

Questions people ask

How many tons of asphalt millings for a 12x250 driveway?

About 48.1 tons at 4 inches deep, or 53.0 tons with 10 percent extra.

How many cubic yards is a 12x250 driveway at 4 inches?

About 37.04 cubic yards.

How much does a cubic yard of asphalt millings weigh?

Usually around 1.2 to 1.4 loose tons, depending on stone size, fines and moisture.

How deep should asphalt millings be for a driveway?

The table above shows 3 to 6 inches. Shallower depths suit top dressing; deeper depths suit new installs and heavier use.

How many square feet is 12x250?

3,000 square feet.

Related guides

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