Modular design means you can place components where they're most needed. Universal mounting system (included) for easy installation on panels up to 2 5/8in thick; also mounts on walls (hardware not included). Grid components lock in place and move in any direction. Welded steel construction with hardened epoxy finish. Contains one GridWall two letter trays two-slot sorter binder bin and 2-ft. shelf. Panel Accessory Type: Organizer; Width: 38in; Depth: 15in; Height: 15in.