Panelmate Triple-Tray OrganizerUnclutter work areas and expand storage with versatile organizers. Fit panels up to 3 1/4" thick (mounting hardware included). Strong welded steel construction with hardened epoxy finish withstands active offices. Compatible with Safco® Gridworks® Office Organization Systems. Holds letter size folders. Each tray is 12w x 9d x2 1/8h. Panel Accessory Type: Organizer; Width: 13 1/2"; Depth: 13 1/4".