I bring this up because I have a fiberglass canopy on the back of a pickup. It would not protect me, nor would fiberglass travel trailers from what I understand.

Enjoy your camping.

We’re really happy that you found it helpful! Good luck with your conversion project, and make sure to come back soon for more helpful cargo trailer conversion posts that we’re currently working on!

Thanks for your comment and for enjoying our write-up! As you mentioned, RV doors typically have a built-in screen door and a rounded design, whereas cargo trailer doors are squared off. Converting the door to match an RV-style design can be a complex process, as it may involve modifications to the frame and structure of the door. Unfortunately, we don’t know of any RV doors made specifically to replace cargo trailer man doors, but one suggestion we have is to explore the option of installing an RV lock on your existing cargo trailer door. An RV lock can provide added security and convenience, even if the door itself remains square-shaped. Another option to consider using a magnet screen on your existing cargo trailer door. It’s a convenient alternative that provides a screen door function without requiring extensive door replacement. We hope this information helps you in your research, and we wish you the best of luck with your project!

That would work too! Especially if you get one that can hold more than 5 gallons.