We use a screen house, EasyUp or FirstUp, I can't remember what the name is. It is the one Walmart sells.
We just got back from our yearly week-long trip to SD with the 16'
UHaul, where we can't use the screen house. Boy, do we miss it when we can't use it. It adds so much living space. We spend most of our time outside in it, when we have it. It works great to deter the bugs too, even though it does not sit totally flush against the
UHaul.
If you add screen walls, you will appreciate it.
CindyL