I want to park my RV in the back yard when not traveling. Concrete is crazy expensive @ here right now. Would 3" of crushed granite, compacted into an excavated form be adequate to support a 10,000 pound RV? Soil around here is black gumbo.

I would go with six to eight inches right under where the wheels will be. Three inches is fine for the rest. Bill

I just used what they call quarter minus, small crushed granite, or maybe it is crushed stone of some type. It compacts like concrete, and I made 4 pads about twice the imprint size of the tires. Giving a solid parking base for the rig to park on in my back yard. Cost was less than $50 and works great till I decide to pave that area.

We had a parking pad built with crushed stone for our 27' Class C. It works great and you don't get the moisture up under the coach as you would parking on grass.

stripit wrote:I just used what they call quarter minus, small crushed granite, or maybe it is crushed stone of some type. It compacts like concrete, and I made 4 pads about twice the imprint size of the tires. Giving a solid parking base for the rig to park on in my back yard. Cost was less than $50 and works great till I decide to pave that area.polar opposite bearing capacity of any soil/sand around southern AZ and gumbo, i.e. mud. Kinda depends how well the lot drains, but like track rig said, 3" IMO is not enough to bridge over soft soil. Dig out the wheel tracks deeper like track rig said, or use a layer of geo grid fabric under the compacted base, or other means to spread the load. You could dig in 2 rows of patio blocks under the wheel paths then gravelAssuming the ground won't hold concentrated weight as it is when wet. Another option to gain a little more structural strength out of a thin section is use recycled asphalt or concrete for the drive pad. Grade it out perfectly and compact it. Both will get pretty hard. Not as good as an asphalt drive but much better than compacted gravel alone.

After "framing" an area with "treated" 4x4s I used 7 tons of "3/4 crush" stones.Delivered in a dump truck and I spread them out.Worked fine for years, not expensive. FWIW.

:Parking Pad for storing 5 ton RV | Good Sam Community

_en_Plain_Air_
Explorer
Nov 14, 2016
We had a parking pad built with crushed stone for our 27' Class C. It works great and you don't get the moisture up under the coach as you would parking on grass.
stripit
Explorer
Nov 14, 2016
I just used what they call quarter minus, small crushed granite, or maybe it is crushed stone of some type. It compacts like concrete, and I made 4 pads about twice the imprint size of the tires. Giving a solid parking base for the rig to park on in my back yard. Cost was less than $50 and works great till I decide to pave that area.
Trackrig
Explorer II
Nov 14, 2016
I would go with six to eight inches right under where the wheels will be. Three inches is fine for the rest.

Bill

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