Metal cable trays and wire ducts

Cable trays are not made of metal wire ducts; they are distinct support systems that can include wire mesh or solid metal structures.

Cable trays are rigid, open support systems designed to hold and organize electrical cables, allowing for easy installation, inspection, and maintenance. They can be constructed from steel, stainless steel, aluminum, or fiberglass, and some types, like basket or wire mesh trays, use welded wire to form a basket-like structure for cable support and ventilation . This wire mesh design is often referred to as a "wire tray" or "basket tray," but it is not the same as a metal wire duct. Cable ducts, on the other hand, are enclosed channels used to protect and route cables, typically made from PVC, steel, aluminum, or concrete. They provide higher physical protection and environmental shielding, keeping cables hidden and safe from dust, impact, or moisture . Unlike cable trays, ducts are fully enclosed and do not allow free airflow around the cables, which can lead to heat buildup if overfilled. Key differences:

• Design: Cable trays are open (ladder, perforated, or wire mesh), while ducts are enclosed.
• Function: Trays support large numbers of cables and allow ventilation; ducts protect cables from physical and environmental damage.
• Material: Trays can include welded wire mesh, but ducts are solid channels made of metal or plastic.
• Applications: Trays are used in industrial, commercial, and IT environments for easy access and heat dissipation; ducts are used in offices, residential buildings, or areas requiring concealed wiring . In summary, while some cable trays use metal wire in their construction, they are not metal wire ducts. Cable trays are support systems for organizing and ventilating cables, whereas metal wire ducts are enclosed protective channels.