I have 2 simple jigs for doors. First take a 2×6 about 2 ft long and lay it flat on the floor. Next take some 3/4" plywood and cut it to about 6" x28", you’ll need 2. Then in the center of the 2×6 attach the plywood to the edge so it sticks up in the air. Space about 2-3/4" allowing a gap and attach the other plywood. When you put the door on edge into that gap it will rest on the 2×6 and you will have a portable door stand. I have 2 made and I’ll get a pic the next time I go to the shop, camping season is almost over.
CHRIS, Charlottetown PEI Canada. Anytime you can repurpose, reuse, or recycle, everyone wins!