How Much Road Base for a 48x64 Pole Barn?
How much road base for a 48x64 pole barn: about 85.3 tons for a 6-inch pad covering the 3,072 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: 3,072.0 sq ft.
- Depth in feet: 6 ÷ 12 = 0.500 ft.
- Cubic yards: 3,072.0 × 0.500 ÷ 27 = 56.89 yd³.
- Tons: × about 1.5 tons per yard = 85.3 tons.
The crushed stone calculator does this for any size.
Related: How Much Gravel for a 48x64 Pole Barn?
Road base needed by depth
| Depth | Cubic yards | Tons of road base | Tons +10% |
|---|---|---|---|
| 4 in | 37.93 | 56.9 | 62.6 |
| 6 in | 56.89 | 85.3 | 93.9 |
| 8 in | 75.85 | 113.8 | 125.2 |
| 12 in | 113.78 | 170.7 | 187.7 |
Pole barn pad depth
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 Crushed Stone for a 48x64 Pole Barn?
Extending the pad past the walls
Many owners run the stone 1 foot beyond each wall: 50x66 feet, 3,300 sq ft, about 91.7 tons at 6 inches. It keeps mud away from the doors and protects the post bases.
Build it in layers
Strip topsoil, level and compact the subgrade, then spread stone in lifts of about 3 to 4 inches, compacting each. A coarser base topped with a finer, packable stone often makes the most solid floor.
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. Road base is a graded stone-and-fines mix built to compact into a load-bearing layer. Ask your supplier for their own tons-per-yard number, since stone source and moisture change it.
Questions people ask
How many tons of road base for a 48x64 pole barn?
About 85.3 tons at 6 inches deep.
How many yards of road base for a 48x64 pad?
About 56.89 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 road base are in a cubic yard?
Roughly 1.5 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 Road Base for a 40x64 Pole Barn?
- How Much Road Base for a 40x80 Pole Barn?
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