"professorpaul" wrote in message
...
I suspect you are seeing what is known as a "skirt." Likely the sort
of stuff you use on house trailers to fill in the gap. Comes as kits,
IIRC. Strip to anchor it at the top, then you dig it into the ground
and anchor with some aluminum pins. The sections interlock.

Thanks!
Yes, it's very similar to what I've seen around mobile homes/trailers.
Searching on mobile home skirting turns up some info. It looks like a
rather obscure item that isn't likely to be found in local stores, but there
are some online sources.