Replacing the wood in my slide

[Kandyjo13]

Hello my name is Kandyjo. I own a 2012 cougar elite 29 res. (5th wheel).
I need to replace the wood in the floor of the dinette slide.
Does anybody have any recommendations on the type of wood I need and the thickness and maybe the measurements? I'm doing this myself on a budget so any info you can share would be greatly appreciated..