Common cable trays are made of galvanized steel, stainless steel, aluminum, or glass-fiber reinforced plastic. The material for a given application is chosen based on where it will be used. Galvanized tray may be made of pre-galvanized steel sheet fabricated into tray, or may be hot-dip. Each cable tray type performs a different function and comes in various materials such as aluminum, galvanized steel, and FRP. It's strong, durable, and can withstand a lot of wear and tear. Mild steel is a cost - effective option for. Selecting the right material for a cable tray is crucial as it impacts durability, cost, installation, and long-term performance.