I'm in the middle of painting the laundry on our new build. The wardrobe in the laundry has fitted shelves which make it very difficult to paint the inside wall and trim above the wardrobe door frame. That part will never be seen, so I'm not worried about how it looks, but I am concerned about whether the surface needs to be painted to protect it. Do I need to paint above the inside door frame, or am I okay to leave it bare?