We have wood flooring, and tile, I bought the large one for my 80 pound lab, but it slides everywhere so he rather lay on the floor. They should have put rubber endings on the legs, to keep it from sliding, it's going to be for out door use only, but the color is so light it will be a mess in no time. It's not made to take a part for washing. 

Pros: Easy to open
Cons: To light weight, not stable.