Our Mountain View Patio Doors are the essence of strength and longevity without compromising the aesthetics of your home. It’s heavy-duty sash and frame provides years of trouble free enjoyment. The Mountain View Patio door was one of the first to implement the fusion welded corner design and is still considered one of the premier quality doors on the market. The ultimate in quality materials and superior craftsmanship is used to manufacture a piece of art that exemplifies what endurance, quality and beauty should be in a sliding door.