Industrial Power Plant: Requires heavy-duty trays, 2. 5–3 mm thick with widths up to 1000 mm, capable of holding multiple layers of power cables. 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. From an engineering standpoint, cable tray dimensions are not. us-trations without notice. The mechanical and electrical characteristics, tests, certifications, overall quality management, recommendations mentioned. ect the minimum bend ra-dius for cables as they exit the bottom of the cable tray. A rung spacing of 6 to 9 inches (150 to 230 mm) is preferable when the cable tray cont d for instrumentation and control applications that require additional protec eferred to support and protect numerous small. Our Cable Tray Design Considerations Guide details key factors to consider when designing cable tray systems for industrial and commercial applications. A tray that is too small will overheat and physically damage, and too large tray will drain the project budget. It is grounded on 40 years of experience in the manufacturing. Specialized/Sigma Factory for Steel Products (SFSP) was first established in KSA in 1989 and has been expanding ever since through a variety of products and through its geographical presence.