Parking on dirt...

[TX_Arvee]

Our new storage unit has crushed rock instead of concrete.
Anyone see any issue being parked for a month on crushed concrete vs. flat concrete?

Do I need to put plywood under all the wheels?

[DocBrown]

None. We've stored trailers on a gravel pad for the past 23 years. The only thing special we do is put boards under the tires. Honestly I'm not sure we even need to, but it does keep them from sinking in the early spring.

[The Logans]

We just got 4 patio stones from Lowes, and drive up on them. Wood tends to retain water, attract insects, etc.

[Jmooney]

I took a 4x8 sheet of plywood and sliced it into two long pieces, then used long spike nails & nailed into the ground - makes a nice "runway"

[clubhouse]

Our storage lot is essentially the same thing, 3/4" crushed rock. It is pretty well packed and level. We have stored two differnt TT on this surface since Oct 2011, no issues. there are about 30 RVs there, one guy actually lifts his and supports the axels to remove the weight off the tires, but everyone else just parks on the rock. No wood or pavers between the tires. It doesn't rain much here so sinking in isn't an issue. Personally I like it over the dirt lots, there is a lot more mess wind the wind blows and when it does rain it turns straight to mud.

[Scoutr2]

Parking on dirt and grass tends to promote rot. Concrete and white rock (crushed limestone) tends to draw the oils out of the tires. For years, I have parked on wooden boards when the trailer was in storage and kept the tires covered. My last set of (Duro) tires lasted me 5+ years before I started seeing cracks in the tread grooves.

Here's a link to Good Sam's recommendations: 3 Steps to Extend RV Tire Life | The Greater Outdoors

Hope this helps!