Just as a point of information I ordered a replacement slide topper, just the material for our 2006 Fleetwood Storm to replace the bedroom one and I measured 84" and on the camping world web site they had the exact replacement size, when it came it was 80". My order was placed over the phone and no one told me what ever size you order it will be four inches shorter. I called camping world and they were very good about it and are sending the 90" one instead and will send a ups pick up for the wrong one. Good Luck to all and it's very easy to replace there is a video on YouTube which was very helpful.
Gary C
Gary C