How Much Road Base for a 36x48 Pole Barn?
How much road base for a 36x48 pole barn: about 48.0 tons for a 6-inch pad covering the 1,728 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: 1,728.0 sq ft.
- Depth in feet: 6 ÷ 12 = 0.500 ft.
- Cubic yards: 1,728.0 × 0.500 ÷ 27 = 32.00 yd³.
- Tons: × about 1.5 tons per yard = 48.0 tons.
The crushed stone calculator does this for any size.
Related: How Much Gravel for a 36x48 Pole Barn?
Road base needed by depth
| Depth | Cubic yards | Tons of road base | Tons +10% |
|---|---|---|---|
| 4 in | 21.33 | 32.0 | 35.2 |
| 6 in | 32.00 | 48.0 | 52.8 |
| 8 in | 42.67 | 64.0 | 70.4 |
| 12 in | 64.00 | 96.0 | 105.6 |
Pole barn pad depth
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 36x48 Pole Barn?
Extending the pad past the walls
Many owners run the stone 1 foot beyond each wall: 38x50 feet, 1,900 sq ft, about 52.8 tons at 6 inches. It keeps mud away from the doors and protects the post bases.
Layering the base
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.
Ordering and delivery
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. Road base is a graded stone-and-fines mix built to compact into a load-bearing layer. Round up by about 10 percent for compaction and uneven ground.
Questions people ask
How many tons of road base for a 36x48 pole barn?
About 48.0 tons at 6 inches deep.
How many yards of road base for a 36x48 pad?
About 32.00 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.
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.
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 32x48 Pole Barn?
- How Much Road Base for a 36x36 Pole Barn?
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