I already have screen doors built on my trailer but I have been lurking on FG trailers and saw this after my side screen door froze and ripped the hinge corner wood apart. I like the one piece door .Only I will make the bottom solid. Mine was screen on top and bottom. However I will do like the one in this picture but the mid section will be a fold down/inside so that I can get at the main door handle.
http://i33.photobucket.com/albums/d64/s ... edium_.jpg