One of the most obvious signs of neglect in an old trailer is the decking material. Obviously, look for cracks in steel-decked trailers, rot or missing boards in wooden decks, as well as cracks in the frame or fenders. Our trailer’s non-treated decking had rotted to the point of being unsafe. The decking boards are held in place with straps of angle iron welded to the frame. Mark their positions and grind out the welds.