by digimark » Sat Feb 07, 2009 2:29 pm
Correct me if I'm wrong, but the way that cargo trailers are constructed might prevent you from cutting through the roof beams and/or the rear door frame to make a lifting section without compromising the structural integrity of the trailer.
Based on what Ive seen other forum members build, you might consider building into the back a gallery section that can, in part or totally, pull out to give you the depth and cover you want. Pull-out drawers, pull out and swing around to the side, or the whole galley unit can slide forward on rollers and/or slides, and lock down when open or closed.
Alternately, you could use an EZ-Up type canopy to cover the rear doors while you're working there.