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Application · Updated 2026-11-07

FRP profiles for marine and coastal structures

Salt water and salt air finish steel coatings and treated timber in a few years. Pultruded fiberglass is specified on seawalls, bulkheads, docks, piers and boardwalks because it does not corrode, is not attacked by marine borers and is light enough to handle without heavy plant. This page lists the product families used on the waterfront and what the marine contractor specifies.

Request a quotation See the products used
Gray interlocking fiberglass sheet pile sections
Gray interlocking fiberglass sheet pile sections

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 profiles for marine and coastal structures in brief

Coastal and marine projects use FRP sheet piles for seawalls, bulkheads and cutoff walls, fiberglass decking and round-tube railing on docks and boardwalks, fiberglass grating on piers, and structural sections for pier framing and fender supports. Buyers specify the sheet-pile section and wall height, decking board profile and span, tube size for railing, resin and UV system, and the hardware, and cite the comparison guides for the material position against steel and timber. pultrx quotes these products from the Henan Zhongsheng factory against the project drawing.

Products
FRP sheet piles, Flat strips and boards, Fiberglass round tube, Fiberglass grating, FRP structural profiles, GFRP rebar
Also searched as
FRP sheet piles seawall, fiberglass dock decking, composite pier profiles, fiberglass marine railing, GRP coastal structures
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. 01Sheet piles: section depth, effective width, interlock type, wall height, embedment and the design moment the wall engineer requires.
  2. 02Decking: board profile, thickness, span between joists, surface finish and fixing method.
  3. 03Railing: tube outside dimension and wall, rail height and post spacing from the applicable code.
  4. 04Resin and UV system for continuous outdoor exposure; color and surface veil.
  5. 05Grating load, surface and panel size for piers.
  6. 06Hardware material (stainless grade) and whether cutting and drilling are done at the factory.
  7. 07Delivery: pile lengths, bundling, port and whether CIF or DAP is required.

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.

FRP sheet piles vs steel sheet piles guide
This site's comparison of corrosion allowance, test evidence and design limits for FRP and steel sheet piling, with public sources.
EN 1993-5
Eurocode for steel piling, cited in the comparison guide for corrosion loss values; it does not cover FRP.
ASTM D7957 and ACI 440.11
Specification and design code for GFRP rebar in splash-zone and marine concrete.

Seawalls and bulkheads

FRP sheet piles are driven or vibrated into place and capped with concrete or an FRP waler. They are chosen for residential canals, marinas, erosion control and cutoff walls where wall height and loads are moderate and steel or vinyl would corrode or deform. The sheet pile guide explains the test evidence that exists for FRP piling and why the wall engineer sets the allowable moment, not the catalogue.

Docks, piers and boardwalks

Fiberglass deck boards span between joists like timber, are fixed with stainless screws or clips, and do not splinter or rot. Round-tube railing with molded fittings is assembled on site. Pier framing uses I beams and channels; grating gives an open deck that drains. Marine hardware should be stainless of a grade the project specifies.

What stays with the marine engineer

Wall design, embedment, deck loads and railing loads come from the project engineer and the local code. pultrx supplies sections to the drawing with the material and dimensional evidence agreed in the quotation; no load rating or service life is claimed for a catalogue product.

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

How high a wall can FRP sheet piles build?
That depends on the section, the soil and the design moment the wall engineer allows. The sheet pile guide gives the public test evidence; the product page lists the catalogue section. Send the wall drawing and soil data with the RFQ so the quoted section is checked against the design.
Does fiberglass decking fade in the sun?
Pigmented boards with a UV-stabilized resin and surface veil keep their color far longer than unprotected laminate, but all composites weather. State the expected service life and exposure on the RFQ so the quoted surface system matches.
Can pultrx deliver to a port near the project?
Yes. FOB Chinese port is the default; CIF or DAP to the destination port is quoted on request. State the port and whether pile lengths need special bundling.
Is marine FRP attacked by borers or fouling?
Marine borers do not attack fiberglass. Fouling attaches to any surface and is cleaned mechanically; it does not degrade the laminate.

Send the profiles for marine and coastal structures 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