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Application · Updated 2026-11-07

FRP cable trays and cable management

Fiberglass cable tray is specified where steel tray would corrode or where a non-conductive support is required: chemical plants, wastewater works, tunnels, offshore platforms and rail. The tray is assembled from pultruded profiles: side rails from channel or custom sections, rungs from tube or I section, and troughs or covers from flat sheet. This page lists what to order and what the tray maker or installer specifies.

Request a quotation See the products used
Orange fiberglass cable trough with lid
Orange fiberglass cable trough with lid

Buying products for this application? Each family below links to its specification page. Running or planning a pultrusion line for these products? Jump to make these products on your own line.

At a glance

FRP cable trays and cable management in brief

FRP cable trays are built from pultruded fiberglass profiles: channel or custom side rails, tube or I-section rungs, and flat sheet or molded troughs with covers. Buyers specify the tray width and depth, rung spacing, resin and fire-retardant grade, UV protection and the support span, and cite NEMA FG 1 where the project requires a fiberglass cable tray standard. pultrx quotes the profiles and finished troughs from the Henan Zhongsheng factory against the tray drawing.

Products
Fiberglass channel, Custom FRP profiles, Fiberglass tubes, Fiberglass I beam, Flat strips and boards, Fiberglass angle
Also searched as
fiberglass cable tray, FRP cable ladder, fiberglass cable trough, GRP cable tray profiles, non-conductive cable tray
Made by
Henan Zhongsheng Composite Material Co., Ltd., Muye District, Xinxiang, Henan, China
Sold by
pultrx, Shanghai, China: the factory’s directly affiliated export trading company and exporter of record
Supply basis
Sections, panels and bars made to the project drawing or a catalogue form; design, loads and code compliance stay with the project engineer.
Pricing
Quotation only, by drawing and quantity; FOB Chinese port by default, CIF or DAP on request.

Product families

Products used in this application

Each card opens the product page with its forms, specification questions and RFQ checklist.

Order requirements

What to specify

Put these items on the RFQ so the factory quotes the same product the project drawing describes.

  1. 01Tray type (ladder, trough, solid bottom), width, depth, rung spacing and straight length.
  2. 02Side-rail section drawing or the channel size, with the splice-plate hole pattern.
  3. 03Resin system and fire-retardant grade; flame spread report requirement for the quoted product.
  4. 04UV protection (surface veil, UV-stabilized resin, pigmentation) for outdoor runs.
  5. 05Support span and the cable load class the tray designer has assumed.
  6. 06Fittings required: horizontal and vertical bends, tees, reducers, covers and hold-down clamps.
  7. 07Hardware material (FRP, stainless, hot-dip galvanized) if supplied with the profiles.

Standards and documents

Documents buyers cite

Named so the RFQ can refer to them. Citing a standard does not establish that a quoted product conforms to it; conformity, tests and evidence are agreed in the quotation.

NEMA FG 1
US standard for fiberglass cable tray systems covering load classes and test method. Cite it where the project specification requires it; conformity of a quoted tray is agreed in the quotation.
ASTM E84
Flame spread test commonly required for tray in buildings and tunnels; request the report for the quoted resin system.
EN 13706
May be cited for the pultruded profiles themselves when the specification requires a European grade.

Ladder tray, trough tray and solid-bottom tray

Ladder tray uses two side rails joined by rungs at a fixed pitch, usually 150, 225 or 300 mm. Trough tray adds a ventilated or solid bottom between the rails. Solid-bottom tray and cable trough are closed sections, often with a lid, used where cables need mechanical protection or where dust must be kept out. All three can be built from pultruded profiles; the side rail is the part that carries the load and defines the tray family.

Why fiberglass instead of steel or aluminum

Fiberglass tray does not corrode in chemical or coastal atmospheres, does not conduct electricity and does not need bonding jumpers for continuity, and weighs about a quarter of steel tray of the same size. The trade-off is stiffness: FRP side rails deflect more than steel for the same depth, so support spans are shorter or rails are deeper. The FRP vs steel guide gives the material values.

What the profile supplier needs

A section drawing or channel size for the side rail, the rung section and length, the quantity per length, the resin and UV requirement, and the fittings list. If the tray maker already has a proprietary side rail, the custom FRP profiles page explains how a die is made for it and what the trial record covers.

For manufacturers

Make these products on your own line

The dies, machines and planning guides for a factory that wants to pultrude these products itself. The same factory that makes the profiles builds the dies.

FAQ

Questions buyers ask

Does pultrx supply finished cable tray or only the profiles?
Both the profiles and finished cable troughs are quoted. Ladder tray assembled with rungs, splice plates and fittings is quoted when the tray drawing and fittings list are supplied; assembly scope is stated on the quotation.
Is fiberglass cable tray fire rated?
Fire-retardant resin grades are available and a flame spread test report to ASTM E84 can be requested for the quoted product. No blanket fire rating is claimed; the requirement must be stated on the RFQ.
What support spacing does FRP tray allow?
That depends on the side-rail depth, the load class and the deflection limit the tray designer applies. The supplier provides the section and material data; the span table comes from the tray design or the project standard.
Can the tray be cut and drilled on site?
Yes, with carbide or diamond tools and dust extraction. Cut edges should be sealed with a compatible resin. Factory cut-to-length and drilling can be quoted instead.

Send the cable trays and cable management drawing or schedule. Get a scoped quotation.

Every quotation names the manufacturer, the exporter of record and the warranty party, and lists what is included.

Request a quotation See the factory