Andersen® 100 Series gliding patio doors are made with our revolutionary Fibrex® composite material to give you a patio door that is durable, environmentally smart and energy efficient. 100 Series products are available in deep, rich exterior colors that are low-maintenance and complement virtually any architectural style. Featuring smooth gliding motion on easily adjustable rollers, as well as a multi-point locking system for added security,100 Series patio doors are a quality alternative to vinyl