Featuring multiple framed glass panels that glide along a track, multi-slide doors are similar to traditional sliding doors, but generally contain more than two panels. When the doors are open, the panels may either be stacked near the side of the opening like an accordion (these are known as bi-fold doors), or concealed in a pocket within the wall. When closed, the stiles of the doors neatly align, creating expansive views of the outdoors at all times. Multi-slide doors can be opened by parting in the middle or sliding together from one side of the track to the other. The doors may be opened and closed manually or through an automated system, and tracks can be curved, straight, or meet in a 90-degree corner.