This is where the standard for vinyl patio doors is set. Milgard extrudes our own vinyl sliding door components to give you the best quality and consistency. In fact, Milgard vinyl patio doors meet light commercial ratings and are built to last a lifetime. Unlike wood, they will not warp, crack or peel. They won’t absorb moisture, so they slide open easily in any weather. What’s more, they feature the most functional and attractive hardware available. All Milgard sliding doors meet or exceed the criteria for structural integrity and reliable performance established by the American Architectural Manufacturers Association (AAMA).