I ran across these a few days ago.
For a screened enclosure these are a very innovative idea.
They have no poles, hardware etc. and fold up into a 30"diameter hoop.
I don't know what the prices are like.
We bought one of these and I don't think they were very expensive. The 8' one rolls into about a 3 1/2' circle. However, I think you had to be a kid with a Barbie playhouse to get it up and down the first time.
There's a trick to the twist to get it to fold. Also, in a strong wind the thing tries to fold up - but - pops up very easily. I do think ours could have been pressed against the door and the door left open - however - there is only one door!!
We ended up; putting ours on the side towards the back - by the outside plugs!! We have two chairs, our pop-up table (it has a little three legged stand and holds the front dinette table up) a lamp, our computer. Actually it more than doubles the floor space in the Burro
and we get the table out of the front which also leaves more room. Definitely worth looking at - got mine on Ebay!! of course. Our Burro
should be called the E-Bayro. Happy trails, Christi