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How Much Road Base for a 24x60 Driveway?

How much road base for a 24x60 driveway: at 4 inches deep you need about 17.78 cubic yards, which is roughly 26.7 tons at 1.5 tons per yard. The driveway covers 1,440 square feet, so every inch of depth adds about 4.44 yards.

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The math for a 24x60 driveway

  1. Area: 24 × 60 = 1,440 sq ft.
  2. Depth in feet: 4 ÷ 12 = 0.333 ft.
  3. Cubic feet: 1,440 × 0.333 = 480.0 cu ft.
  4. Cubic yards: ÷ 27 = 17.78 yd³.
  5. Tons: × 1.5 = 26.7 tons.

The volume and tonnage calculator does this for any size.

Road base needed by depth

DepthCubic yardsTons (approx.)Tons +10%
4 in17.7826.729.3
6 in26.6740.044.0
8 in35.5653.358.7

About road base

Road base is meant to be compacted at close to the right moisture. Dry base rock does not lock up well; a light spray of water before rolling helps. Ask your supplier for their own tons-per-yard figure, since stone source and moisture shift it.

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. Since the driveway carries car and truck traffic, a little extra depth is cheap insurance.

Ordering tips

  • Round up. Compaction and uneven ground eat material. Adding about 10 percent is common.
  • Delivery size. 29.3 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 road base

Best suited to:

  • Base under asphalt and concrete
  • Gravel roads and drives
  • Equipment and shed pads

Think twice for:

  • Drainage layers
  • Decorative surfaces
  • Surfaces that will stay uncompacted

Quick reference numbers

  • Per inch over 100 sq ft: about 0.46 tons of road base (0.31 cubic yards).
  • Per inch over 1,000 sq ft: about 4.6 tons.
  • Another size for comparison: a 8x16 area at 4 inches takes about 2.4 tons.
  • Weight used here: about 1.5 tons per cubic yard.

Common estimating mistakes

  • Assuming every supplier uses the same weight. Two yards selling the same product name can quote different tons per yard.
  • Ordering exactly the math. Uneven ground and spillage nearly always need a little more than the flat calculation.
  • Measuring only the main rectangle. Aprons, turnouts and curved edges add real square footage.
  • Skipping drainage. Water sitting under any surface softens the base and leads to ruts and potholes.

Questions people ask

How many tons of road base for a 24x60 driveway?

About 26.7 tons at 4 inches deep, or 29.3 tons with 10 percent extra.

How many cubic yards is a 24x60 driveway at 4 inches?

About 17.78 cubic yards.

How much does a cubic yard of road base weigh?

Usually around 1.4 to 1.65 compacted tons, depending on stone size, fines and moisture.

How deep should road base be for a driveway?

The table above shows 4 to 8 inches. Shallower depths suit top dressing; deeper depths suit new installs and heavier use.

How many square feet is 24x60?

1,440 square feet.

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