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13 Cubic Yards of Road Base in Tons

13 cubic yards of road base in tons works out to about 19.5 tons using a planning weight of 1.5 tons per yard. Real loads land between roughly 18.2 and 21.4 tons depending on stone size, fines and moisture. That is about 39,000 pounds.

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The conversion

  • Yards × tons per yard: 13 × 1.5 = 19.5 tons.
  • Low end: 13 × 1.4 = 18.2 tons.
  • High end: 13 × 1.65 = 21.4 tons.

If your supplier quotes a different weight per yard, multiply by theirs.

What 13 yards covers

DepthSquare feet
4 in1,053
6 in702
8 in526

About road base

Road base (also called base rock, ABC, or Class 2 base in different states) is a graded mix of stone and fines made to compact into a load-bearing layer.

Hauling 13 yards

Plan the delivery around 19.5 tons: two or more trucks in most areas. A pickup is a poor fit for anything past a fraction of a yard; see how much gravel a half-ton pickup can carry.

Before you order

  • Confirm whether the yard prices road base by the ton or by the yard.
  • Add about 10 percent for compaction and uneven ground.
  • Clear a firm spot for the truck to dump.

The volume and tonnage calculator converts any area and depth into yards and tons.

When to choose road base

Best suited to:

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

Poor fit 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 10x20 area at 4 inches takes about 3.7 tons.
  • Weight used here: about 1.5 tons per cubic yard.

Where estimates go wrong

  • Assuming every supplier uses the same weight. Two yards selling the same product name can quote different tons per yard.
  • Forgetting that compaction shrinks loose material. A loose 4-inch spread of a dense-graded stone may finish closer to 3 inches after rolling.
  • Ignoring the base. A thin surface layer over soft soil fails early no matter how much material is on top.
  • Skipping drainage. Water sitting under any surface softens the base and leads to ruts and potholes.

Questions people ask

How many tons is 13 yards of road base?

About 19.5 tons, with a typical range of 18.2 to 21.4.

How many pounds is 13 cubic yards of road base?

About 39,000 pounds.

How much area does 13 yards of road base cover at 6 inches?

About 702 square feet.

Why does road base weight vary?

Stone size, the share of fines and moisture all change how much a yard weighs.

Is it better to buy by the ton or the yard?

Either works; just convert with the supplier’s own weight per yard so the two quotes compare fairly.

Related guides

Open the volume and tonnage calculator → Asphalt tonnage calculator →

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