How Much Crusher Run for a 40x80 Pole Barn?
How much crusher run for a 40x80 pole barn: about 91.9 tons for a 6-inch pad covering the 3,200 square foot footprint. Many builders extend the pad a foot or two past the walls, which adds material.
Volume and tonnage calculator →The math
- Area: 3,200.0 sq ft.
- Depth in feet: 6 ÷ 12 = 0.500 ft.
- Cubic yards: 3,200.0 × 0.500 ÷ 27 = 59.26 yd³.
- Tons: × about 1.55 tons per yard = 91.9 tons.
The crushed stone calculator does this for any size.
Related: How Much Gravel for a 40x80 Pole Barn?
Crusher run needed by depth
| Depth | Cubic yards | Tons of crusher run | Tons +10% |
|---|---|---|---|
| 4 in | 39.51 | 61.2 | 67.4 |
| 6 in | 59.26 | 91.9 | 101.0 |
| 8 in | 79.01 | 122.5 | 134.7 |
| 12 in | 118.52 | 183.7 | 202.1 |
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.
Related: How Much Crushed Stone for a 40x80 Pole Barn?
Extending the pad past the walls
Adding 1 foot on every side makes the pad 42x82, or 3,444 sq ft. At 6 inches that is about 98.9 tons. A wider apron sheds water away from the posts and gives the eave drip a place to land.
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.
Ordering and delivery
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. Round up by about 10 percent for compaction and uneven ground.
Questions people ask
How many tons of crusher run for a 40x80 pole barn?
About 91.9 tons at 6 inches deep.
How many yards of crusher run for a 40x80 pad?
About 59.26 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.
Do I need to compact it?
Yes for anything that carries weight. Compact in lifts of a few inches with a plate compactor.
Related guides
- Gravel for a Pole Barn Floor: Best Stone, Depth and Tons
- How Much Does a Ton of Gravel Cover? Depth Chart
- Tons to Cubic Yards for Gravel: Conversion Chart
- Crushed Stone vs Gravel: Differences and Best Uses
- Geotextile Fabric for Driveways: Woven vs Nonwoven and How Much You Need
- Compacting a Driveway Gravel Base in Lifts
- How Much Crusher Run for a 40x60 Pole Barn?
- How Much Crusher Run for a 40x64 Pole Barn?
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