Ladder-type: This type of cable tray has two side rails connected by rungs. It provides maximum ventilation and easy access to the cables from the top or bottom1.
Perforated type: This type of cable tray has a ventilated bottom with side rails. It provides more support to the cables than the ladder-type.
Solid bottom type: This type of cable tray has a solid bottom with side rails. It is used for delicate cables or where there is minimal heat generation. It also offers electromagnetic/ radio-frequency interference protection.
Wire mesh: This type of cable tray is made of stainless steel wires welded together, forming a basket-like mesh. It is suitable for low voltage, telecommunications and fiber optic cable installations.
Channel type: This type of cable tray is nothing more than a metal tray that can be used for very small cable installations.
The selection of cable tray depends on the number of cables, size, spacing, weight
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