We had and 06 3055 and installed high quality (30 year warranty) laminate in it. The flooring was about 3/8" thick, plus the pad. The flooring did not show any marks where the slide roller or slide made any contact when closing and opening. It did made a slight mark on the furnace grill that is in the middle of the kitchen area. But these were hardly noticeable. I traded for an 08 model 3055 and installed a less expensive (only 20 year warranty) grade of laminate that I found at Sutherland Lumber here in Texas. This laminate was only about 1/4" thick plus the pad. Looks just as good, feels just as good, and care is the same. The slide does not touch in any place and does not make mark on furnace grill. On the 08 model I did need to square up the corner of the carpet near the living room area, original design was rounded corner, which was not a problem. We are really happy with the laminate and, to us, it adds that finished look to a nice unit.