All aluminum, can be washed out with a water hose! The cabinets are extremely sturdy. Porcelain toilet and real shower fixtures with a full sized shower. Doors open and close beautifully. This is the "Airstream" of the toy haulers. One small scratch on outside by the outdoor tv mount that May be buffed out. Two small shallow nickel sized dents on the back side that did not scrape the paint and to see you have to really look.Huge awning, sturdy steps, no generator, everything in great condition. No wood.