Folding door or Bi-fold hardware is commonly used for closet doors in both residential and commercial applications. Bi-fold doors slide and close in an accordion style and is suitable for enclosing wider section of opening with door. They help reducing opening and closing radius compare to a conventional doors.
Sugatsune's folding hardware series are differentiated by the weight of the door that the hardware is going to be installed on. There is a SFD for 17.6 lb.per door panel, a FD30-F for 33 lb.per door panel and SDR-A84 for 125 lb. doors. SDR-A84D Bi-fold hardware is available for both 2 and 4 panel applications and comes with various mounting options.