Perforated rungs on a ladder-type tray securely fasten cables using cable ties. Additionally, their open design prevents moisture. Hubbell's NEXTFRAME® Ladder Tray is the effective and widely used cable runway that supports and delivers bundles of cable between cabinets, racks, and closets, along walls, and suspended from ceilings. One of the most common questions from users is: “A cable tray is a cable tray—why are there so many types?” The answer is simple: different cable. Explore our full collection of Metallic Ladder 3D Drawings, including horizontal fittings, vertical fittings and metallic tray. A series reflects connected component products for individual purchase. Straight sections are available in multiple heights, lengths and widths. The following pages address the 2014 National Electrical Code® requirements for cable tray systems as well as design.