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US Cable Tray Specifications and Models Table

Fiber and communications infrastructure knowledge brief Published 30 Dec 2022

Prepared for preliminary research by the METRA knowledge desk. Confirm optical interfaces, port or core capacity, electrical input and output, enclosure protection, thermal design and installation limits against current standards and product documentation.

US cable trays are available in ladder, ventilated, solid-bottom, and wire mesh types, with materials including steel, stainless steel, and aluminum, designed to meet NEMA and UL standards.

Overview of Cable Tray Types and Applications

Tray TypeMaterialCommon Sizes (Width x Depth)Load Class / RatingTypical ApplicationsNotesLadder TraySteel, Aluminum, Stainless Steel6"–36" wide, 2"–12" deepLight, Medium, Heavy Duty (based on rung spacing and support span)Industrial, commercial, data centersProvides excellent ventilation and support for large bundles; allows easy cable installation and maintenance Ventilated TraySteel, Aluminum6"–24" wide, 2"–6" deepLight to Medium DutyOffice buildings, telecom roomsPerforated bottom allows airflow to reduce heat buildup; supports medium cable loads Solid-Bottom TraySteel, Aluminum6"–24" wide, 2"–6" deepLight to Medium DutySensitive electronics, control roomsProtects cables from dust, debris, and electromagnetic interference; may require covers for full protection Wire Mesh / Basket TraySteel, Stainless Steel4"–24" wide, 2"–6" deepLight DutyData centers, low-voltage cablingLightweight, flexible, easy to cut and route; ideal for retrofit or complex pathways Material and Finish OptionsSteel: Pre-galvanized or hot-dip galvanized for corrosion resistance; economical and widely used.

Stainless Steel: AISI 316L grade for high corrosion resistance, especially in chemical or coastal environments. Aluminum: Lightweight, corrosion-resistant, suitable for indoor and outdoor applications; often used in corrosive environments. Standards and ComplianceNEMA VE 1: Defines cable tray types, load ratings, and installation guidelines in the US.

U

L 568: Certification for cable tray systems ensuring safety and performance. Load Class: Determined by rung spacing and support span; affects maximum cable weight per linear foot.

Manufacturer-

Specific Notes

Eaton B-Line Series: Offers metallic ladder and tray systems with CAD/BIM content for design; emphasizes strength-to-weight ratio and reduced structural steel supports. Hubbell NEXTFRAME®: Ladder tray system with 16-gauge steel tubing, modular design, and multiple mounting options for floors, walls, ceilings, and racks. Legrand: Provides ventilated and solid trays with UL certification; emphasizes compliance with electrical and mechanical standards.

AB

B: Offers steel trays with pre-galvanized, hot-dip galvanized, and stainless steel options; suitable for industrial and commercial environments.

Design Considerations

Rung Spacing: Typically 6–9 inches for ladder trays to support cable bundles and maintain bend radius. Support Span: Determines load capacity; longer spans require heavier-duty trays or additional supports. Environmental Factors: Corrosive environments may require stainless steel or aluminum; indoor dry locations can use pre-galvanized steel.

Cable Type: Power, control, and data cables may require different tray types and covers to prevent interference or overheating. This table and overview provide a comprehensive reference for selecting US cable tray systems, including types, materials, sizes, load ratings, and manufacturer-specific models suitable for industrial, commercial, and data center applications.

US Cable Tray Specifications and Models Table - METRA FIBER MARKET [PDF]

US Cable Tray Specifications and Models Table

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Technical note

This reference is intended for preliminary fiber and communications infrastructure research. Optical interface, fiber type, port or core capacity, electrical input and output, enclosure protection, cooling, installation limits and applicable standards must be verified for the specific project.

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