I'm new to the forum, and I appreciate all the good advice and information. I've checked the forum and everywhere for floor boards, but they seem too expensive or too large. So I went to Home Depot---got some steel angle material---some appropriate fasteners----a rubber backed carpet door mat----and a piece of 3/8" plywood I had at home. After 6 hours, they are great. Not to be jumped on, but tight and firm enough ---and look great. Take a piece of 3/8 plywood, about a foot by a foot and a half-----push it up under the bottom of the plastic frame which lies in front of the existing pegs---hold it tight and draw with a pencil around the plastic , making the shape and length of the new plywood floor boards. Then saw then out with a saber saw, one backward for the other side. Then bend the steel---drill holes---bolt them on----glue trhe black carpet on the plywood boards with the rubber down----paint the raw wood edges with black paint----There you have them. If I knew how to attach pictures to this forum thread, I'd do it. On this forum, send me you email addresses, and I'll mail you pictures. Good looking, and cheap---my kind of thing.----Thanks----Ev