Is your concern the potential for charring the wood if a hot iron is left on too long? If so, I can't really answer.
If your question is more about ideal pressing surface, this may help--
I have an old TV tray table that I converted to a pressing table with just a single layer of thermal batting and the metallic looking fabric over that. It's held up fine for quick pressing of piecing while I'm at the machine, but I prefer a lot more give like my ironing board for pressing yardage or pressing the fully pieced quilt. I think your answer is just -- it depends.