I had the same problem also. Very cheap and thin cardboard for the price they charge. Their instructions imply the cardboard is two layers and you separate the two, but it is one thin layer. Even if you are careful and can manage to separate it in the middle, The clips still bulge the thin cardboard out and show in the outer panel. My 45 year old panels I took off were a better design. You would think for the money they charge, they could supply you a better product.
