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How Much Crusher Run for a 16x40 Parking Pad?

A 16 by 40 foot parking pad is 640 square feet. How much crusher run for a 16x40 parking pad depends on depth: at 4 inches it is about 7.90 cubic yards or 12.2 tons. Suppliers usually sell by the ton, so the tonnage is the number to give them.

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The math for a 16x40 parking pad

  1. Area: 16 × 40 = 640 sq ft.
  2. Depth in feet: 4 ÷ 12 = 0.333 ft.
  3. Cubic feet: 640 × 0.333 = 213.3 cu ft.
  4. Cubic yards: ÷ 27 = 7.90 yd³.
  5. Tons: × 1.55 = 12.2 tons.

The volume and tonnage calculator does this for any size.

Crusher run needed by depth

DepthCubic yardsTons (approx.)Tons +10%
3 in5.939.210.1
4 in7.9012.213.5
6 in11.8518.420.2
8 in15.8024.526.9

About crusher run

The fines in crusher run fill the gaps between stones, so it weighs more per yard than clean stone once compacted. Plan on rolling or plate-compacting it in lifts. If the yard sells by the cubic yard instead of the ton, use the cubic-yard column directly.

Preparing the parking pad

Dig out organic soil, compact the subgrade and set an edge so the stone does not migrate onto the lawn. A pad that holds parked weight for long periods benefits from a dense base under the surface stone. This parking pad sees parked vehicles, so match the depth to that load rather than to the minimum.

Ordering tips

  • Round up. Compaction and uneven ground eat material. Adding about 10 percent is common.
  • Delivery size. 13.5 tons fits in a single 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 parking pad as firm ground allows.

Good and poor uses for crusher run

Best suited to:

  • Base under asphalt, pavers or concrete
  • Gravel drives that need a firm, packed surface
  • Shed pads and equipment pads

Poor fit for:

  • Drainage layers, since the fines slow water
  • Decorative beds
  • Spots where you want water to soak straight through

Quick reference numbers

  • Per inch over 100 sq ft: about 0.48 tons of crusher run (0.31 cubic yards).
  • Per inch over 1,000 sq ft: about 4.8 tons.
  • Another size for comparison: a 14x28 area at 2 inches takes about 3.8 tons.
  • Weight used here: about 1.55 tons per cubic yard.

Common estimating mistakes

  • Ordering exactly the math. Uneven ground and spillage nearly always need a little more than the flat calculation.
  • Mixing up cubic yards and tons. Yards are volume, tons are weight; convert with the product’s weight 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.
  • Assuming every supplier uses the same weight. Two yards selling the same product name can quote different tons per yard.

Questions people ask

How many tons of crusher run for a 16x40 parking pad?

About 12.2 tons at 4 inches deep, or 13.5 tons with 10 percent extra.

How many cubic yards is a 16x40 parking pad at 4 inches?

About 7.90 cubic yards.

How much does a cubic yard of crusher run weigh?

Usually around 1.5 to 1.7 compacted tons, depending on stone size, fines and moisture.

How deep should crusher run be for a parking pad?

The table above shows 3 to 8 inches. Shallower depths suit top dressing; deeper depths suit new installs and heavier use.

How many square feet is 16x40?

640 square feet.

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