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How Much Does 28 Tons of Gravel Cover?

How much does 28 tons of gravel cover depends on how deep you spread it. At about 1.4 tons per cubic yard, 28 tons is roughly 20.0 cubic yards. Spread 4 inches deep, that covers about 1,620 square feet. Every added inch of depth cuts the coverage noticeably.

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How the coverage is figured

  1. Tons to cubic yards: 28 ÷ 1.4 = 20.0 yd³.
  2. Cubic yards to cubic feet: × 27 = 540 cu ft.
  3. Divide by depth in feet: at 4 inches (0.333 ft), 540 ÷ 0.333 = 1,620 sq ft.

Coverage of 28 tons at different depths

DepthSquare feet coveredSquare yards
2 in3,240360
3 in2,160240
4 in1,620180
6 in1,080120

About gravel

Plain gravel is a loose term. Yards use it for rounded bank or river stone as well as for crushed rock, so ask whether the load is washed, crushed or a mix before you lock in a tonnage. Weight runs about 1.3 to 1.5 tons per cubic yard, so treat the table as a planning range rather than an exact figure.

Planning around 28 tons

28 tons will usually take two or more truck loads, 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.

Where gravel fits

Works well for:

  • Rural driveways and lanes where low upfront cost matters
  • Drainage areas and around downspouts
  • Temporary access while a site is under construction

Think twice for:

  • Steep slopes, where loose stone washes downhill
  • Spots plowed often, since plows push gravel into the lawn
  • Areas next to doors, because stone tracks inside

Quick reference numbers

  • Per inch over 100 sq ft: about 0.43 tons of gravel (0.31 cubic yards).
  • Per inch over 1,000 sq ft: about 4.3 tons.
  • Another size for comparison: a 14x28 area at 3 inches takes about 5.1 tons.
  • Weight used here: about 1.4 tons per cubic yard.

Mistakes that throw off the order

  • 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.
  • Ordering exactly the math. Uneven ground and spillage nearly always need a little more than the flat calculation.
  • Forgetting that compaction shrinks loose material. A loose 4-inch spread of a dense-graded stone may finish closer to 3 inches after rolling.

Questions people ask

How many cubic yards is 28 tons of gravel?

About 20.0 cubic yards at 1.4 tons per yard.

How many square feet does 28 tons of gravel cover at 4 inches?

About 1,620 square feet.

How many square feet does 28 tons cover at 2 inches?

About 3,240 square feet.

How much does a yard of gravel weigh?

About 1.3 to 1.5 tons.

Will 28 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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