How Much Gravel for a 12x45 RV Pad?
How much gravel 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 gravel calculator does this for any size.
Related: How Much Crushed Stone for a 12x45 RV Pad?
Gravel needed by depth
| Depth | Cubic yards | Tons of gravel | 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
RVs put a lot of weight on a few tires and leveling jacks. A 6-inch compacted base suits most firm soils; soft or clay ground often needs 8 inches or more and a woven fabric underneath. Put jack pads or small concrete pads where the jacks land.
Related: How Much Crusher Run for a 12x45 RV Pad?
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
Crown the pad or slope it slightly so rain runs off rather than collecting under the rig. Keep the top an inch or two above surrounding grade.
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. Gravel is a broad label, so confirm whether the yard means crushed or rounded stone and whether it carries fines. The scale ticket is the real weight; tons per yard here is a planning figure.
Questions people ask
How many tons of gravel 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 gravel 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
- 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 12x40 RV Pad?
- How Much Crusher Run for a 12x40 RV Pad?
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