This is the most common stacking arrangement. For extra stability, the panels are operated and hinged in pairs. With a full height pass door option, the door will open to one side of track only, not half-half, as with stacking of all other panels.
The easiest way to operate panels as they are individually pushed along the track. All panels will stack to one side of the track as they are fed into side stack track.
Similar to side stack, but panels are moved along the track to a remote stack away from the main track, (into a separate stacking bay, storage room etc).