Thanks. Is it like Astroturf?

I found this stuff:

https://www.amazon.com/MODIGT-Underfelt-Carpet-Truck-Speaker/dp/B095P95C2G/ref=sr_1_15?keywords=rv+carpet&qid=1680728679&sr=8-15

I think that would work.

I might just have to go up to lowes and buy a foot and the excess width and cut it down.