Locate a dealership here
that sells your brand of RV and ask the parts department this question. You will have to follow the links on the manufacturer's website to locate a dealer near you. Yes you should replace the plastic ASAP. In addition to your observation about the plywood warping, it may also tear or rip the carpeting. Welcome to irv2.com! This is the place to listen, ask questions, and learn about all things RV connected. I have learned ever so much since joining irv2.com.
2000 Winnebago Ultimate Freedom USQ40JD
, ISC 8.3 Cummins 350, Spartan MM Chassis. USA 1SG, retired;PPA,Good Sam Life member."We the people are the rightful masters of both the Congress and the Courts - not to overthrow the Constitution but to overthrow men who pervert theConstitution. "Abraham Lincoln"