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How Much Road Base for a 150 Foot Driveway?

A 150-foot driveway at the common 12-foot width covers 1,800 square feet. Spread 4 inches deep, how much road base for a 150 foot driveway comes to roughly 33.3 tons.

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The math

  1. Area: 1,800.0 sq ft.
  2. Depth in feet: 4 ÷ 12 = 0.333 ft.
  3. Cubic yards: 1,800.0 × 0.333 ÷ 27 = 22.22 yd³.
  4. Tons: × about 1.5 tons per yard = 33.3 tons.

The crushed stone calculator does this for any size.

Road base needed by depth

DepthCubic yardsTons of road baseTons +10%
2 in11.1116.718.3
4 in22.2233.336.7
6 in33.3350.055.0
8 in44.4466.773.3

Tons by driveway width

WidthTons at 4 inTons at 6 in
10 ft27.841.7
12 ft33.350.0
14 ft38.958.3
16 ft44.466.7

Truck loads

Plan for about 36.7 tons with waste. On a 15-ton truck that is about 3 trips; spreading while dumping (a tailgate spread) puts the stone close to where it belongs.

Base and top layer

A new driveway usually starts with a larger base stone on compacted subgrade, then a top layer that packs. Topping up an existing drive takes much less, often 2 inches. Fabric under the base helps on clay or wet ground.

Buying the stone

Most quarries and landscape yards deliver by the ton; ask whether there is a minimum and a delivery fee, and where the driver can dump without damaging your lawn. Road base is a graded stone-and-fines mix built to compact into a load-bearing layer. The scale ticket is the real weight; tons per yard here is a planning figure.

Questions people ask

How many tons of road base for a 150 ft driveway?

About 33.3 tons at 12 ft wide and 4 inches deep.

How many truck loads for a 150 ft driveway?

About 3 loads of 15 tons, including some extra.

How many tons of road base are in a cubic yard?

Roughly 1.5 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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