How Much Crushed Stone for a 12x45 RV Pad?
How much crushed stone for a 12x45 RV pad: about 14.0 tons at 6 inches deep. The pad covers 540 square feet, enough for most fifth wheels and Class A coaches.
Volume and tonnage calculator →The math
- Area: 540.0 sq ft.
- Depth in feet: 6 ÷ 12 = 0.500 ft.
- Cubic yards: 540.0 × 0.500 ÷ 27 = 10.00 yd³.
- Tons: × about 1.4 tons per yard = 14.0 tons.
The crushed stone calculator does this for any size.
Related: How Much Crusher Run for a 12x45 RV Pad?
Crushed stone needed by depth
| Depth | Cubic yards | Tons of crushed stone | Tons +10% |
|---|---|---|---|
| 4 in | 6.67 | 9.3 | 10.3 |
| 6 in | 10.00 | 14.0 | 15.4 |
| 8 in | 13.33 | 18.7 | 20.5 |
| 12 in | 20.00 | 28.0 | 30.8 |
How thick to build it
Plan on at least 6 inches of compacted stone. Heavier motorhomes, wet sites or soft soil call for 8 to 12 inches. Fabric under the stone stops it from pumping into the mud over time.
Related: How Much Crushed Stone for a 12x45 Driveway?
Size and access
A 12-foot width gives tight but workable room to open slide-outs and walk around the rig. Add a wider entry flare where the pad meets the driveway so you can swing in without cutting across the lawn.
Drainage
Build the pad a little higher than the yard and slope it gently. Standing water under an RV softens the base and invites rust.
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. Round up by about 10 percent for compaction and uneven ground.
Questions people ask
How many tons of crushed stone for a 12x45 RV pad?
About 14.0 tons at 6 inches deep.
How thick should an RV gravel pad be?
At least 6 inches compacted; 8 to 12 on soft soil.
Do I need fabric under an RV pad?
On soft or clay soil, a woven geotextile helps keep the stone from sinking.
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.
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
- 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 12x40 RV Pad?
- How Much Gravel for a 12x45 RV Pad?
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