How Much Crushed Stone for a 30x30 Pole Barn?
A 30 by 30 pole barn covers 900 square feet. Spread 6 inches deep, the pad takes about 16.67 cubic yards, which is roughly 23.3 tons of crushed stone. That answers how much crushed stone for a 30x30 pole barn for a typical floor base.
Volume and tonnage calculator →The math
- Area: 900.0 sq ft.
- Depth in feet: 6 ÷ 12 = 0.500 ft.
- Cubic yards: 900.0 × 0.500 ÷ 27 = 16.67 yd³.
- Tons: × about 1.4 tons per yard = 23.3 tons.
The crushed stone calculator does this for any size.
Related: How Much Gravel for a 30x30 Pole Barn?
Crushed stone needed by depth
| Depth | Cubic yards | Tons of crushed stone | Tons +10% |
|---|---|---|---|
| 4 in | 11.11 | 15.6 | 17.1 |
| 6 in | 16.67 | 23.3 | 25.7 |
| 8 in | 22.22 | 31.1 | 34.2 |
| 12 in | 33.33 | 46.7 | 51.3 |
How deep the barn pad should be
A 4-inch layer works for storage and light use on firm soil. For equipment, vehicles or a future concrete floor, 6 to 8 inches of compacted stone is common, and soft ground may need more plus fabric underneath.
Related: How Much #57 Stone for a 30x30 Pole Barn?
Extending the pad past the walls
Adding 1 foot on every side makes the pad 32x32, or 1,024 sq ft. At 6 inches that is about 26.5 tons. A wider apron sheds water away from the posts and gives the eave drip a place to land.
Layering the base
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
If you haul it yourself, a typical half-ton pickup should carry only about half a cubic yard of stone, well under what the bed looks like it can hold. Crushed stone has angular faces that lock together under a compactor, which is why it holds a pad shape. Ask your supplier for their own tons-per-yard number, since stone source and moisture change it.
Questions people ask
How many tons of crushed stone for a 30x30 pole barn?
About 23.3 tons at 6 inches deep.
How many yards of crushed stone for a 30x30 pad?
About 16.67 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 crushed stone are in a cubic yard?
Roughly 1.4 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 Crushed Stone for a 24x36 Pole Barn?
- How Much Crushed Stone for a 24x40 Pole Barn?
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