Add the finishing touch to your home with French Doors and Patio Doors that provide a durable, low-maintenance exterior Two door brands are available for you to choose from, both impervious to the elements thanks to Ultrex® fiberglass exteriors. Integrity® Sliding Patio Doors and Swinging French Doors feature a natural wood interior and are available in bare wood or with a white semi-gloss finish. Sliding French Doors from Infinity are low-maintenance fiberglass on the exterior and interior and are available in Stone White or with a completely low-maintenance EverWood® stainable interior..