I went around the local farm store and came up with a idea. I'm thinking of welding chain around the door approx 3/4" from the edges so I can still have room to weld a 3/16 1 1/2 inch steel seal/stopper around the outside edge. Would the chain work could weld every link on one side of door. Then weld the links where they touch. I am going to use welded chain for handles as well so it would add a nice accent around doors.