floor pans
I did the fill welds to the rails and overlapped the edges on mine. be sure to allow enough material when you trim it. if you just sit it in place it will be too small when pushed down. i drew a line with sharpie, take back out to see how much overlap. I then set a cinder block on it to keep it tight till I had a few welds holding to the rails. after done I used neoprene roof caulk underneath and seam sealer inside