Standard cable tray widths per IEC 61537 and manufacturers' ranges are typically 50, 75, 100, 150, 200, 225, 300, 400, 450, 500, 600, 750, 900, and 1000mm. In practice, cable tray dimensions are a system of interrelated measurements —width, depth, length, and material thickness—that directly affect cable fill compliance, heat dissipation, structural loading, and long-term expandability. With unmatched quality and service, we offer a variety of styles, materials and finishes to support virtually any cable management. Standard cable tray widths typically range from: Tray heights generally range from 25mm to 150mm, depending on cable volume and ventilation requirements. A tray that is too small will overheat and physically damage, and too large tray will drain the project budget.