Fiberglass I-Profiles (FRP/GRP I-Beams) - Advanced Structural Solutions
Fiberglass I-Profiles
Fiberglass I-profiles are structural beams made from fiber reinforced plastic (FRP) or glass reinforced plastic (GRP). Manufactured through pultrusion, these I-shaped profiles provide a lightweight, corrosion-resistant alternative to steel and aluminum beams for platforms, walkways and structural supports.
These profiles are produced using pultrusion machines and pultrusion dies. For a complete range of structural shapes, see our pultruded FRP profiles.
Key Features
Corrosion Resistance: Resists rust and degradation in many chemical, saltwater and high-humidity environments
Lightweight: Approximately 75% lighter than steel by weight, which can reduce handling and installation requirements
Electrical Safety: Non-conductive properties make these beams suitable for electrical installations and power facilities
Low Maintenance: No painting or coating required in many applications
Good Strength-to-Weight Ratio: Provides structural capacity at low weight for suitable applications
Technical Specifications
Property
Value
Density
1.8–2.0 g/cm³
Tensile Strength
Typically 240–380 MPa
Flexural Strength
Typically 300–450 MPa
Service Temperature
-40°C to +80°C standard
Electrical Resistivity
Non-conductive
Actual values depend on fiber content, resin system and profile geometry. Please request a material datasheet for specific grades.
Available Sizes
Height × Width × Thickness (mm)
Available Lengths
101.6 × 50.8 × 6
1.5m, 3m, 4.5m, 6m
120 × 70 × 8
6m
152.4 × 76.2 × 6
1.5m, 3m, 4.5m, 6m
200 × 100 × 10
Custom lengths
240 × 120 × 12
Custom lengths
Custom dimensions, resin systems and lengths are available on request.
Primary Applications
Industrial & Chemical Plants: Platforms, walkways and supports in corrosive environments
Electrical Installations: Cable trays, support systems and equipment mounting
Construction & Infrastructure: Bridge components, building frameworks and floor supports
Marine Environments: Docks, piers, offshore structures and coastal infrastructure
Fiberglass vs. Steel Comparison
Feature
Fiberglass I-Profiles
Steel I-Beams
Corrosion
Resistant in many environments
Requires protective coating
Weight
Approximately 75% lighter
Heavy
Electrical
Non-conductive
Conductive
Maintenance
Low in suitable applications
Regular painting often needed
Installation
Lighter handling
May require heavy equipment
Related Capabilities
Pultruded FRP profiles
FRP rebar
Pultrusion machines
Pultrusion dies
Need these products for your project? Contact our team for a quote and technical assistance.
FAQ
What are FRP I-profiles used for?
FRP I-profiles are commonly used in structural support systems, platforms, walkways, roof supports, bridge components, stairways and industrial frames. They are suitable for projects that need a lightweight beam with corrosion resistance and long-term durability.
What are the advantages of FRP I-profiles over steel?
FRP I-profiles are lightweight, corrosion resistant, electrically non-conductive and easier to handle during installation. In moisture, chemical and salt-exposed environments they can reduce maintenance requirements compared with steel.
What sizes are available for FRP I-profiles?
FRP I-profiles are available in a range of standard sizes, and custom dimensions can be produced for specific load and design requirements. Typical sizes are selected based on span length, load capacity and project environment.
Are FRP I-profiles suitable for corrosive environments?
Yes. FRP I-profiles are widely used in chemical plants, wastewater facilities, marine structures and utility installations because they resist rust, moisture and many aggressive chemicals.
Can FRP I-profiles be customized?
Yes. FRP I-profiles can be customized in length, dimensions, resin system, color and surface finish to meet project-specific engineering and installation requirements.
What industries commonly use FRP I-profiles?
FRP I-profiles are used in construction, infrastructure, marine engineering, chemical processing, water treatment, power facilities and industrial equipment support systems.
Do FRP I-profiles provide electrical insulation?
Yes. FRP I-profiles are non-conductive, making them suitable for electrical, utility and industrial projects where insulation and safety are important considerations.
