Trapezoidal cable tray installed horizontally on the wall

A trapezoidal cable tray can be securely mounted horizontally on a wall using brackets, clamps, or hangers, ensuring proper alignment, support spacing, and load capacity.Preparation and PlanningBefore installation, review the approved shop drawings to determine the tray route, length, and location on the wall. Ensure the wall surface is clean, free of obstructions, and capable of supporting the tray and cable load. Maintain sufficient clearance for cable pulling and future maintenance .Mounting Hardware and SupportsBrackets and Hangers: Use wall-mounted brackets, clamps, or hangers suitable for trapezoidal trays. These can be pre-fabricated flanges or channels that attach directly to the wall .Support Spacing: Maximum support spacing is typically around 3.6 meters (12 feet), with each hanger supporting up to 318–340 kg (700–750 lbs) depending on tray specifications .Leveling: Ensure each bracket or clamp is level to maintain a horizontal tray. Use washers and hex nuts to adjust the tray height and secure it firmly .Installation StepsMark the Tray Route: Use the shop drawings to mark horizontal and vertical runs on the wall. Ensure no clashes with other services .Attach Brackets or Hangers: Secure brackets to the wall at the marked locations. For trapezoidal trays, ensure the open side faces outward for easy cable access .Position the Tray: Lift the tray section and place it onto the brackets or clamps. Use washers and nuts to secure the tray, allowing minor horizontal adjustments if needed .Connect Tray Sections: Align and join multiple tray sections using appropriate fittings. For wall-mounted trays, fittings may need to be manually adjusted to maintain the horizontal orientation .Check Alignment and Clearance: Verify that the tray is level, properly supported, and maintains adequate clearance for cables and maintenance access .Practical TipsCustom Fitting: Some trays, like the Wall Snake, can be bent by hand to match wall contours or obstacles .Rung Spacing: Ensure rungs are spaced to allow proper cable bending radii; remove rungs if necessary to prevent sharp bends .Manual Adjustments: In software modeling (e.g., Revit), horizontal trays may require manual placement of fittings to prevent automatic rotation or misalignment . By following these steps and using proper supports, a trapezoidal cable tray can be installed horizontally on a wall safely, maintaining structural integrity and ease of cable management.