The lower raised panel area of the Shilo door prevents screen damage in heavy traffic locations. This screen door features 3 horizontal mullions. We use one screen insert to cover all three openings at once. Tempered glass storm inserts are optional and used to replace the screen for the winter converting your beautiful screen door into a functional storm door for the winter. The Shilo screen door can be made to just about any size to custom fit your opening. Speak with one of our design specialists today about designing the screen door of your dreams.