Perforated rungs on a ladder-type tray securely fasten cables using cable ties. Additionally, their open design prevents moisture. There are several types of cable trays, including ladder, perforated, solid bottom, basket, and channel trays. Each cable tray type performs a different function and comes in various materials such as aluminum, galvanized steel, and FRP. What is Cable Tray? A cable tray is a unit, or set of units. Ladder Trays are essentially assembled trays using two āCā Channels and a central rung. Width: 100mm to 1500mm in increments of 50mm. Filter Results Results refresh instantly as you filter. Used to identify and differentiate offerings within a particular product line.