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How Much Crusher Run for a 50x80 Pole Barn?

How much crusher run for a 50x80 pole barn: about 114.8 tons for a 6-inch pad covering the 4,000 square foot footprint. Many builders extend the pad a foot or two past the walls, which adds material.

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The math

  1. Area: 4,000.0 sq ft.
  2. Depth in feet: 6 ÷ 12 = 0.500 ft.
  3. Cubic yards: 4,000.0 × 0.500 ÷ 27 = 74.07 yd³.
  4. Tons: × about 1.55 tons per yard = 114.8 tons.

The crushed stone calculator does this for any size.

Crusher run needed by depth

DepthCubic yardsTons of crusher runTons +10%
4 in49.3876.584.2
6 in74.07114.8126.3
8 in98.77153.1168.4
12 in148.15229.6252.6

How deep the barn pad should be

Plan the pad around what the barn will hold. Hay and tools sit fine on 4 inches of compacted stone; tractors, trucks or a later slab pour justify 6 to 8 inches built up in compacted lifts.

Extending the pad past the walls

Many owners run the stone 1 foot beyond each wall: 52x82 feet, 4,264 sq ft, about 122.4 tons at 6 inches. It keeps mud away from the doors and protects the post bases.

Build it in layers

Remove sod and organic soil first. Compact the subgrade, then place and compact the stone in thin lifts. If the barn floor will be stone permanently, finish with a material that has fines so it packs firm.

Buying the stone

Small dump trucks commonly carry around 5 to 10 tons and tri-axles more, but loads vary by truck and state, so ask the yard what fits in one trip. Crusher run mixes stone and stone dust, so it packs nearly solid when compacted in layers. Ask your supplier for their own tons-per-yard number, since stone source and moisture change it.

Questions people ask

How many tons of crusher run for a 50x80 pole barn?

About 114.8 tons at 6 inches deep.

How many yards of crusher run for a 50x80 pad?

About 74.07 cubic yards at 6 inches.

How deep should a pole barn gravel pad be?

About 4 inches for light use and 6 to 8 inches for vehicles or a future slab.

How many tons of crusher run are in a cubic yard?

Roughly 1.55 tons for planning, but suppliers vary with stone size and moisture.

Should I put landscape fabric under the stone?

On soft or clay soil, a woven geotextile keeps stone from sinking into the dirt and makes the layer last longer.

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