Architect Series Multi-slide Patio Door | Pella
http://www.housemaintenanceguide.com/residentialpatiodooroptions.php has some information on the types of patio doors that can be installed in the home.
Aluminium Sliding Patio Doors Lowest Prices
Kolbe's Sliding Patio Door Configurations
6 panel triple track aluminium patio door Ours would be 4
Fiberglass Sliding Patio Doors, 2, 3 or 4 panel configurations
Bi Folding Sliding Patio Doors Aluminium SPECIAL OFFER (2) | eBay
Essence Series® patio door by Milgard
Harvey patio door with factory applied transom, optional colonial grids and a simulated meeting rail to match the patio door’s meeting rail.
These are the Anderson 400 Series sliding patio doors with custom trim casing. We replaced French Style doors