Wire mesh baskets and cable trays are typically made from materials like steel, aluminium, or stainless steel. Selecting the right raw material for cable trays is vital to maintaining structural integrity, longevity, and cost efficiency. Cable trunking is fully enclosed cable support and protection systems, and are one of the three main types of cable trays. 5, 2, 4, 6, 8, 12, 16, 18, 20, and 24 inches c. Each cable tray type performs a different function and comes in various materials such as aluminum. Cable trays play a crucial role in managing and supporting electrical cables in industrial, commercial, and residential applications.