That's a good point, Windy. My handles have been flopping loose so long, it seems hard to believe there would be clearance problems - but you are right - it is a concern. I have spare lumber in the garage, so I thought I could burn a bit of it up experimenting.
In addition to the much thinner 4x8 plastic paneling at the home store, I've also thought about cutting the door panels out of fluorescent light ceiling tiles (for suspended ceilings) and covering it with the foam-backed fabric. The plastic is thin and flexible and the 2x4 squares would be a nice size to work with. Hopefully I can give some better answers than "I think," and move to "I did" in the next few weeks!
