Westeck introduces the next generation of patio door systems for the modern home owner. The 425 patio doors provide clients with unmatched design flexibility. The 425 Patio Slide offers XO, OX, OXO and OXXO configurations for large patio openings. The same panel design provides a uniform aesthetic allowing the system to be seamlessly integrated. This system allows the client to open up their home with large unobstructed expanses bringing the outside in. With tested sizes up to 20' wide and 9' tall, the options are endless!