When two or more panels are hinged together to fold up adjacent to each other, they are called bifold panels. A single track system is used for a bi-fold track system. Panels must be hinged together in multiples of two. The top fascia is 2 ½”, the same as Medium Z-frame. The header and side legs are made of 1” rail material. A standard 1” floor clearance is also provided and cannot be modified. Corner fascias are included on O.M. and net width orders only.
All fascia over 8’ (or 96”) are provided in two pieces with 45 degree miter joint for both faux wood and real wood shutters.
These diagrams should help you visualize how these type of shutters work with some of the specifications.