Create the organizational system that works for you. Expandable system begins with the basic pocket that mounts flush to wall (hardware included). Use the add-on pockets to increase storage. 1 5/16″ capacity. Includes a deluxe Hot File® label holder with blank label and clear protective sheath. Durable plastic construction. 13w x 8 15/16h space requirement. Hanging File Systems Type: Expandable Single Pocket; For File Size: Letter; Overall Height: 8 15/16″; Width: 13″.