Combine the best of contemporary styling with superb Andersen craftsmanship. This handsome door stands up to tough weather conditions while maintaining its appearance and functionality.Clean, smart styling sets this door apart and makes it a natural choice for contemporary homes. Yet it's also built with Andersen's traditional attention to craftsmanship and detail. It features a stainable pine interior, mortise-and-tenon joints, and our High-Performance™ glass. A patented, full-length weatherstrip/interlock system stands up to harsh weather, while the exterior is covered with a rigid vinyl sheath that maintains the attractive appearance while keeping maintenance easy. Narroline® patio doors glide smoothly and easily on dual ball-bearing rollers with self-contained leveling adjusters.