Cable management is an important function. There are numerous concerns that you need to consider regarding proper usage and arrangement. Having too many cables in a tray is a safety issue. It can also cause poor operational performance. And it can also make replacing and relocating a cable very difficult. So please refrain from overloading cable trays. Overhanging cable trays are mounted on ceilings or supported by a bracket at the bottom. Again, be careful because a heavy tray can fall.
Ladder trays are sometimes fitted with solid covers. They serve as protection