Perfect for my 17ft hybrid trailer. Lots of adjustment points. It wasn't so bad to set up with the help of another person. My biggest concern is that the fabric is way thinner than expected. Make sure you cover any sharp spots on your RV. The drain cover was torn during installation. It tore apart a lot easier than I had hoped. It hasn't been that long so I can't comment on durability yet, but my expectations are low. Pay half and get half (by thickness) I guess.