opnspaces wrote:
10 inches seems like three rows of those interlocking retaining wall blocks. First row trenched into a ditch, the next two rows locked on top. This will give you a 12" high wall that you can dump 10" of gravel behind.
X2
If ordinances allow, I would seriously look into a steel building for your motor home, and also to replace your current steel storage shed. Build something to last, built to increase the value of your property, and built bigger than your rig in case you later desire a bigger rig. If you have the space on your property, include some extra interior space for another bay for other vehicles. I wish I had that for my seasonal cars.
A steel building will cost a lot less than most people realize. A lot of the expense is the concrete floor and electrical, but maybe you can add both later. Just have the building made with them in-mind.