We had a small outside kitchen in our last 5th wheel a Keystone outback. It was used when we got it and the kitchen was right by the door. When looking at it I felt a spongy place by the door. I told the seller it had a leak and damage to the floor. He disagreed and said it had always felt that way. I told him I was sure of it and made him an offer that deducted the cost of fixing the floor. At first he refused it but, 2 or 3 days later he called to accept it. As soon as I got it home I pulled up floor and there it was a rotten section of floor. The outside kitchen door folded down and the top of the door frame pulled away from the side. I pulled the door out and resealed it and then tore out the section of floor that was rotten and re-enforced the support structure. Took me 3 days but it fixed it. Later ,even though I had resealed the kitchen door it leaked again so I quit using it. I'd never buy one with an outside kitchen unless there is a different design.