I acquired a 12" diameter pvc pipe at a great price... FREE! (thanks Tim!). The problem is that it is a few inches too short. I'm building a plywood box for the front of the trailer and the tube will feed into a hole in the back it. I'll get the extra length I need and only have to build one cover. I'm making it wide enough to hold my dagger boards. I'll post a picture when I am done.
Todd
TheMightyHobie18, MN