We have a 2006 Itasca Horizon. We have removed the carpet in the living area, and replaced with bamboo flooring. The 2 slides are HWH, and the slides will have a plastic "glide" if they are installed over carpet.
If over tile or other hard surface they will have rollers.
I measured the thickness of the carpet and padding and found flooring that was slightly thinner than the carpet combo. After the installation the plastic "glides" scratched the new bamboo. I was able to raise the slides a little and that helped.
20/20 hindsight I would have installed a vinyl flooring like Allure. It's much thinner than the carpet and probably would have worked better.