sg, steve at sams told me the earlier model 58yf like I have had a gap at the bottom and the top of the dodgerboard. in the later years they had a track attached to the deck and the underside of the rail that the dodgerboard fit into and was caulked. it may be the same with your model. as for the corner pieces being 2 sheets glued together, I have heard of people gluing 2 sheets of formica together for dodgerboard