Wendy I have tried various ramp covers and tried to invent some that covered that area and what I have found works best for me and the ferrets are some long mens work tube socks, I get them at the dollar store. They are tight and come up well above the end of the ramp making room for it to fold over on the top, when the ramp is attached its very solid and no gap remains. I top that with a shelf cover with corner slots to hold it on, that way it comes over the edge and covers the top of the ramp area. So far with 6 ferrets in a ferret nation for over a year we havent had any problems. Pics of underside of ramp http://i65.photobucket.com/albums/h219/mysticalmanana/apr30-08003.jpg Pics of top side of ramp http://i65.photobucket.com/albums/h219/mysticalmanana/apr30-08004.jpg I hope this helps [Posted in FML 5958]