Johnson Hardware Bifold 72" 1700 Closet Door Hardware RESIDENTIAL GRADE  Top hung folding door hardware set for standard panel/opening widths. EASY TO INSTALL  Sets include all necessary hardware, no drilling required. ADJUSTABLE  Track can be cut down to accommodate narrower panel/openings. PATENTED DESIGN  Designed for panel doors 1'' to 1 3/8'' thick, 35 lb. capacity. MADE IN THE U.S.A. - Built in the United States.