We have had a carport and a building done by Carport1. They have been great, everything just as agreed upon, so I ordered a metal carport cover for our TT. 18wide x 41 long, complete, delivered and installed for $2700.00.
I too have been through many covers and the material type portable carports. I was tired of wasting the money and this is great. Plenty of room, I can open the slides, canopy, and be completely underneath of the cover.
If you use them ask for Brandon, he is part of the family that owns the company and really is professional. It is on the internet and you can even design your cover online at the website by the same name. Be careful there is another with a very close name. I will post a pic when it is built next month.
2001 F250 Superduty
2 Crazy Huskies