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How Much Does 4 Tons of Crushed Stone Cover?

How much does 4 tons of crushed stone cover depends on how deep you spread it. At about 1.4 tons per cubic yard, 4 tons is roughly 2.9 cubic yards. Spread 4 inches deep, that covers about 231 square feet. Halve the depth and you roughly double the area.

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How the coverage is figured

  1. Tons to cubic yards: 4 ÷ 1.4 = 2.9 yd³.
  2. Cubic yards to cubic feet: × 27 = 77 cu ft.
  3. Divide by depth in feet: at 4 inches (0.333 ft), 77 ÷ 0.333 = 231 sq ft.

Coverage of 4 tons at different depths

DepthSquare feet coveredSquare yards
2 in46351
3 in30934
4 in23126
6 in15417

About crushed stone

Crushed stone has fractured faces, so the pieces interlock when compacted. That is why it holds a driveway or pad shape better than round stone of the same size. Weight runs about 1.35 to 1.5 tons per cubic yard, so treat the table as a planning range rather than an exact figure.

What 4 tons looks like on site

4 tons is a light load that a single-axle dump truck can often handle, though legal limits vary by truck and state. Spread from the pile with a loader, skid steer or wheelbarrow, then rake to depth before compacting if the material calls for it.

  • Check depth as you go. Stakes marked at the target depth help keep the spread even.
  • Expect some loss. Compaction and uneven ground use more than the flat-math figure. Keep about 10 percent in reserve.
  • Ask about moisture. Wet material weighs more, so a ton of it covers less.

To run your own numbers, use the volume and tonnage calculator.

When to choose crushed stone

Good uses:

  • Driveway top courses and parking pads
  • Shed and hot tub bases
  • Backfill behind walls when a clean size is used

Poor fit for:

  • Barefoot areas, since angular stone is rough
  • Play areas
  • Places that need a smooth rolling surface for wheels

Quick reference numbers

  • Per inch over 100 sq ft: about 0.43 tons of crushed stone (0.31 cubic yards).
  • Per inch over 1,000 sq ft: about 4.3 tons.
  • Another size for comparison: a 14x28 area at 4 inches takes about 6.8 tons.
  • Weight used here: about 1.4 tons per cubic yard.

Where estimates go wrong

  • Measuring only the main rectangle. Aprons, turnouts and curved edges add real square footage.
  • Forgetting that compaction shrinks loose material. A loose 4-inch spread of a dense-graded stone may finish closer to 3 inches after rolling.
  • Assuming every supplier uses the same weight. Two yards selling the same product name can quote different tons per yard.
  • Using inches as if they were feet. Depth has to be divided by 12 before you multiply; skipping that step inflates the order twelvefold.

Questions people ask

How many cubic yards is 4 tons of crushed stone?

About 2.9 cubic yards at 1.4 tons per yard.

How many square feet does 4 tons of crushed stone cover at 4 inches?

About 231 square feet.

How many square feet does 4 tons cover at 2 inches?

About 463 square feet.

How much does a yard of crushed stone weigh?

About 1.35 to 1.5 tons.

Will 4 tons fit in one truck?

It depends on the truck. Single-axle dump trucks often carry under 10 tons and tandems around 13 to 16; your supplier will know their limits.

Related guides

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