Basically one door panel is stationary and the other opens by sliding horizontally on tracks. Sliding Doors may include more than two panels.
Single, double, or French Swinging Patio Doors are available in many designs and glass types to provide clear viewing or privacy tint.
Open up an entire room to the great outdoors with a Folding Door System. These doors open accordian style and can be designed with multiple layers panels depending in your customization needs.