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How Much #57 Stone for a 100 Foot Driveway?

How much #57 stone for a 100 foot driveway: about 20.0 tons for a 12-foot-wide lane at 4 inches deep. That is 1,200 square feet and 14.81 cubic yards.

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The math

  1. Area: 1,200.0 sq ft.
  2. Depth in feet: 4 ÷ 12 = 0.333 ft.
  3. Cubic yards: 1,200.0 × 0.333 ÷ 27 = 14.81 yd³.
  4. Tons: × about 1.35 tons per yard = 20.0 tons.

The crushed stone calculator does this for any size.

#57 stone needed by depth

DepthCubic yardsTons of #57 stoneTons +10%
2 in7.4110.011.0
4 in14.8120.022.0
6 in22.2230.033.0
8 in29.6340.044.0

Tons by driveway width

WidthTons at 4 inTons at 6 in
10 ft16.725.0
12 ft20.030.0
14 ft23.335.0
16 ft26.740.0

Truck loads

Plan for about 22.0 tons with waste. On a 15-ton truck that is about 2 trips; spreading while dumping (a tailgate spread) puts the stone close to where it belongs.

Base and top layer

If this is a new driveway on soil, build a base of 4 to 6 inches of coarse stone first and finish with a packable surface stone. For a refresh, 2 inches over the old surface is common. Fabric under the base helps on clay or wet ground.

Getting it delivered

If you haul it yourself, a typical half-ton pickup should carry only about half a cubic yard of stone, well under what the bed looks like it can hold. #57 is a washed stone of roughly 1/2 to 1 inch with few fines; it drains fast but stays a little loose on its own. The scale ticket is the real weight; tons per yard here is a planning figure.

Questions people ask

How many tons of #57 stone for a 100 ft driveway?

About 20.0 tons at 12 ft wide and 4 inches deep.

How many truck loads for a 100 ft driveway?

About 2 loads of 15 tons, including some extra.

How many tons of #57 stone are in a cubic yard?

Roughly 1.35 tons for planning, but suppliers vary with stone size and moisture.

Should I put landscape fabric under the stone?

On soft or clay soil, a woven geotextile keeps stone from sinking into the dirt and makes the layer last longer.

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