I just brought my 29.5BHDS home. So far with awning out it hasn't touched the door. Close though. I can see if you tilt it for rain in the front it will probably hit. My rear living did it too on the back end of the awning.
you could put a little rolling wheel in the top of the door, that's what we did with our old trailer, if you had the awing all the way down for rain or some wind the door would rub, the wheel just stopped the hard metal from dragging on the awning.
I'm currently on the maiden voyage with my BHDS. The door didn't touch the awning when I had it at home. But now that I'm out it touches it just barely. Another 1/8 of an inch and it wouldn't. I don't know if something is out if level or why it does now. Anyways, we usually leave the door open and it doesn't touch at that point so I don't believe it'll be an issue.