FRP Sheet Piling — Type U
Type U FRP sheet piling is a composite sheet pile built specifically for waterfront and marine applications, using fiber-reinforced polymer for lasting strength and corrosion resistance.
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Type U FRP sheet piling is a composite sheet pile engineered for waterfront and marine applications. FRP, short for fiber-reinforced polymer, combines high strength with corrosion resistance, weather resistance, and low upkeep. This Type U product is suited to seawalls, bulkheads, retaining walls, and erosion control work.
Advantages of Type U FRP Sheet Piling
Compared with traditional materials like wood, concrete, steel, aluminum, and vinyl, Type U FRP sheet piling offers several advantages:
Durable and affordable: Built to withstand the toughest site conditions, this FRP sheet piling delivers long-term cost savings — independent testing and analysis show an FRP wall can last 75+ years.
Long-lasting: It resists rot, spalling, and rust in corrosive environments, and stands up well against UV degradation, saltwater intrusion, marine borers, and chemical attack.
Attractive: A graphite grey finish blends naturally into marine settings, and the piling can also be customized in different colors and textures to fit a project’s aesthetic.
Compatible with standard equipment: Installation works with vibratory hammers, plate compactors, and other familiar construction methods, and a patented interlock system keeps connections easy and secure.
Type U FRP Sheet Piling Performance & Parameter Data
The table below lists the key performance and parameter data for Type U FRP sheet piling.
| FRP sheet pile shape Parameter data | |
| Thickness | 4mm |
| Section Width | 420mm |
| Section Depth | 120mm |
| Length | Any length |
| Weight | 5.8kg/m |
| Color | Dark gray（Customizable） |
| FRP sheet pile shape Performance data | |
| Moment of Inertia | Ix1620cm4/m |
| Section Modulus | Wx=276.3cm3/m |
| Tensile Strength | 350Mpa |
| Flexural Strength | 280Mpa |
| Barcol Hardness | 48 |
| Izod Impact | 0.9J/mm |
| Thermal Expansion | 28um/m.℃ |
| Water Absorption | 0.16%/24hrs@25℃ |
| Modulus of Elasticity | 2500000 PSI |
| Maximum bending moment | 19549.2 ftlb/ft |
Technical Summary & Engineering Insights
| Performance Factor | Haikuo FRP Sheet Piling (Type U) | Steel Sheet Piling | Timber/Wood Piling |
|---|---|---|---|
| Corrosion Resistance (saltwater) | Total immunity | Corrodes, especially at the waterline | Rots below waterline over time |
| Weight | Lighter, easier handling and driving | Heavy | Moderate |
| Maintenance | Minimal | Regular coating/cathodic protection needed | Periodic replacement |
| Chemical/Marine Borer Resistance | Immune to marine borers and chemicals | Not applicable, but corrodes | Vulnerable to marine borers |
| Service Life in Marine Environments | Long, 50+ years typical | Reduced by corrosion | Reduced by rot/borers |
Targeted Product FAQ
Q1: What is Type U sheet piling used for?
A1: Seawalls, bulkheads, retaining walls, and erosion control projects along waterfronts, canals, and coastal sites.
Q2: How does Type U interlock during installation?
A2: Type U sections feature an interlocking joint profile designed to connect adjacent piles into a continuous wall — let us know your project’s wall length and we can confirm the panel layout.
Q3: What driving/installation method is used for FRP sheet piling?
A3: It’s typically installed with vibratory or impact driving equipment similar to steel sheet piling, adjusted for the material’s lighter weight — we can advise based on your site conditions.
Q4: What wall heights can FRP sheet piling support?
A4: Supportable height depends on soil conditions and retained load — share your project’s site conditions and we can help confirm the right pile depth and thickness.
Q5: How does FRP sheet piling compare in total project cost to steel?
A5: Material cost is often higher upfront, but the elimination of corrosion protection systems, cathodic protection, and future replacement typically makes lifecycle cost lower for marine installations.
Production Process
Pultrusion Profile Equipment
Fiberglass placed on a shelf
Profile mold debugging
Profile cutting
Profile punching
Profile cutting details control
Profile inspection
Profile packaging
