2005 Fleetwood Excursion Storage door damage

Looking for help, I have an 05 Excursion, on the inside of the storage doors, they are covered by a white plastic sheet, I put a hole in one of them. I was able to simply remove the panel, its 2 way taped on the edges, does anyone know where I can buy a sheet of the plastic, its 1/8" thick.
Thank You