Crusher Run: Size, Uses, and Cost Per Ton (2026)

Crusher run is crushed stone with the rock dust left in, sold as 3/4 inch minus or 1.5 inch minus. It costs $20 to $35 per ton in 2026, weighs 1.5 to 1.7 tons per cubic yard, and packs into a surface hard enough to drive on year after year. It is the standard base under roads, driveways, parking lots, and patios, and the best single-layer material for a gravel driveway. In the Southeast it is called crush and run. Highway departments call it aggregate base course, ABC, or Class 5.

Why Crusher Run Packs So Hard

A pile of clean #57 stone is about 35 percent air. Crusher run fills that air with smaller stone, sand, and dust. When you wet it and run a plate compactor or a loaded truck over it, the fines lock the larger pieces in place and the whole layer knits together. Compaction is about 15 percent, so a 6-inch loose layer ends up about 5 inches. The finished surface sheds rain, holds tires without rutting, and can be graded smooth with a box blade. Given a few months of traffic, a crusher run driveway feels closer to pavement than to gravel.

The trade-off is drainage. Water runs off crusher run instead of through it. That is fine on a crowned driveway with somewhere for water to go. It is the wrong choice inside a French drain or behind a retaining wall.

What Crusher Run Is Used For

• Gravel driveways. Four to 6 inches on firm ground, compacted in two lifts, makes a complete driveway with no other layers. On soft clay, put 4 inches of #4 stone under it.
• Parking lots and pads. The go-to surface for gravel parking, RV pads, and equipment yards. Six inches for cars, 8 to 12 inches in two layers for trucks.
• Road base. Under asphalt and concrete roads, crusher run is the structural layer that carries the load.
• Paver and patio base. Four inches of compacted crusher run under 1 inch of sand or stone dust is the standard paver base.
• Shed and hot tub pads. Compacts flat and stays flat.
• Walkways. Packs into a firm path, though it is dusty when dry and a bit muddy when wet. Decomposed granite or #89 stone is nicer underfoot.
• Filling potholes and ruts. The fines make it bind to the old surface instead of rolling out.

3/4 Minus Versus 1.5 Minus

Most quarries sell two sizes. 3/4 inch minus is finer and gives a smoother finished surface, so it is the pick for driveway tops, paths, and paver base. 1.5 inch minus has bigger top-size stone, spreads loads better, and is the pick for the bottom of a thick driveway or a truck lot. Some quarries call the coarser one "#4 down" or "crusher run base" and the finer one "#57 down" or "crusher run surface."

Installing Crusher Run

Grade the subsoil with a slight crown or a 2 percent slope so water leaves. Lay geotextile fabric if the soil is clay. Spread crusher run in 3-inch lifts, wet each lift lightly with a hose, and compact it with a plate compactor (rent one for about $90 a day) or drive a loaded truck back and forth. Keep going until the surface stops moving. A driveway done this way needs a fresh inch on top every 2 to 3 years and almost no other maintenance.

What Crusher Run Costs

At $20 to $35 per ton it is among the cheapest materials a quarry sells. Because it is dense, a ton covers less area than a ton of #57: about 55 square feet at 4 inches. A 12 x 40 ft driveway at 4 inches needs about 10 tons, one single-axle load, for $200 to $350 plus delivery. Read the gravel driveway cost guide for full project pricing. Recycled asphalt is the only common driveway material that is cheaper, and the two are compared here.

What to Avoid

Do not use crusher run for drainage, inside a French drain, around drain pipe, or behind a retaining wall. Do not use it as a play area surface or in garden beds, where the fines turn to a crust. Do not spread it in one thick lift; it will not compact past the top 3 inches. And do not expect a dust-free surface in dry weather. Limestone crusher run in particular tracks white dust into the house until it seals over.