Built for demanding environments
Composite performance selected for challenging industrial, commercial and infrastructure applications.
GRP composite solutions backed by 25+ years of industry experience
Captrad Composites
GRP Product
Pultruded GRP structural profiles for lightweight, corrosion-resistant fabrication and support.
Captrad combines practical product knowledge, stocked GRP materials and bespoke manufacturing capability to help customers specify a solution that is reliable, durable and appropriate for the application.

Why choose Captrad
Built around project requirements, working environments and long-term performance.
Composite performance selected for challenging industrial, commercial and infrastructure applications.
Practical handling and installation can help streamline on-site work.
Choose from stocked products or talk to us about a tailored specification.
Advice, availability and delivery coordinated by the Captrad team.
Where it works
Captrad works with customers who need reliable, practical composite solutions for challenging projects. We’ll help assess suitability for your environment and performance requirements.
Discuss your applicationReliable solutions for access, structures and project delivery.
Materials suited to wet, corrosive and operational environments.
Practical GRP products for active industrial environments and specialist applications.
Support for demanding sites and specialist applications.
Specified GRP components can support safe access, cable management and external equipment infrastructure around battery energy storage systems.
A practical option for durable access, cable routing and external infrastructure around solar arrays, inverters and site equipment.
Suitable GRP products can support access, cable-management and equipment-area requirements in data-centre projects.
Specified GRP products can support durable access, cable-management and infrastructure requirements across rail projects.
Structural GRP
GRP Pultrusions & Structural Profiles can be used in fabrication and structural-support applications where corrosion resistance and practical handling are important. Pultruded GRP profiles and reinforcement products give designers and contractors an alternative material option for a range of infrastructure and industrial projects.
Captrad can support early conversations around profile geometry, section size, length, connections and the operating environment. This helps establish whether a stocked section or a tailored solution is appropriate before procurement and fabrication are planned.
GRP structural profiles
Captrad stocks pultruded GRP profiles for fabrication projects that need a lightweight, corrosion-resistant alternative to traditional materials. The standard range includes angle, box, channel and I-beam sections, alongside structural components used in frames, supports, access systems and bespoke composite assemblies.
Profile selection should begin with the required section, length, environment and connection arrangement. Share drawings, preferred profile geometry, quantities and any fabrication details so we can discuss suitable options and practical next steps for the project.





Available from stock
A practical reference list of Captrad’s standard pultruded GRP profiles. Sizes, weights and lengths are shown below to help with early specification and enquiry planning.
Need a profile outside this list? Send your drawings, section size, required quantity and delivery location so the Captrad team can discuss availability or a bespoke pultrusion option.
Discuss a profile requirement| Profile | Size | Weight kg/m | Length |
|---|---|---|---|
| Flat sheet / strip | |||
| Flat Strip | 40 × 5 mm | 0.38 | 6 m |
| Flat Strip | 80 × 8 mm | 1.20 | 6 m |
| Flat Strip | 200 × 9.5 mm | 3.79 | 3 m |
| Flat Sheet | 926 × 3.1 mm | 5.58 | 3 m |
| GRP angles | |||
| Angle | 25 × 25 × 3 mm | 0.27 | 6 m |
| Angle | 50 × 50 × 3 mm | 0.55 | 6 m |
| Angle | 50 × 50 × 5 mm | 0.90 | 6 m |
| Angle | 51 × 51 × 6.35 mm | 1.10 | 6 m |
| Angle | 60 × 60 × 8 mm | 1.75 | 6 m |
| Angle | 75 × 75 × 10 mm | 2.77 | 6 m |
| Angle | 100 × 100 × 8 mm | 2.95 | 6 m |
| Unequal Angle | 60 × 40 × 7 mm | 1.23 | 6 m |
| GRP channels / U profiles | |||
| Channel | 50 × 30 × 4 mm | 0.75 | 6 m |
| Channel | 76 × 25.4 × 6.35 mm | 1.25 | 6 m |
| Channel | 100 × 50 × 6 mm | 2.03 | 6 m |
| Channel | 150 × 50 × 6 mm | 2.57 | 6 m |
| Channel | 200 × 60 × 8 mm | 4.68 | 6 m |
| Channel | 200 × 60 × 9.5 mm | 5.59 | 6 m |
| Channel | 280 × 70 × 12 mm | 9.20 | 6 m |
| GRP box sections | |||
| Rectangular Box – Yellow | 58 × 25 × 3 mm | 0.86 | 5 m |
| Box Section | 25 × 25 × 3 mm | 0.55 | 6 m |
| Box Section | 38 × 38 × 3.2 mm | 0.84 | 6 m |
| Box Section | 38 × 38 × 5 mm | 1.22 | 6 m |
| Box Section | 44 × 44 × 6 mm | 1.70 | 6 m |
| Box Section | 51 × 51 × 3.2 mm | 1.10 | 6 m |
| Box Section | 51 × 51 × 6.35 mm | 2.10 | 6 m |
| Rectangular Box | 102 × 51 × 3.2/6.35 mm | 2.30 | 6 m |
| Box Section | 60 × 60 × 4.5 mm | 1.85 | 6 m |
| Box Section | 76 × 76 × 6.35 mm | 3.48 | 6 m |
| Box Section | 101.6 × 101.6 × 6.35 mm | 4.60 | 6 m |
| GRP I-beams & H-beams | |||
| I-Beam | 120 × 70 × 8 mm | 3.67 | 6 m |
| I-Beam | 152 × 80 × 10 mm | 5.71 | 6 m |
| I-Beam | 152 × 76 × 6.35 mm | 3.58 | 6 m |
| I-Beam | 200 × 100 × 9.5 mm | 7.20 | 6 m |
| H-Beam | 150 × 150 × 9.5 mm | 7.78 | 6 m |
| H-Beam | 200 × 200 × 10 mm | 11.02 | 6 m |
| GRP handrail profiles | |||
| Ergonomic Handrail – fits 51 mm box | — | 1.45 | 6 m |
| Handrail Tube | 38/32 mm | 0.62 | 6 m |
| Toe Rail | 150 × 15 × 3 mm | 1.28 | 6 m |
| GRP ladder profile | |||
| Ladder Rung | 34.5 × 32 × 25.5 mm | 0.67 | 6 m |
| GRP decking | |||
| Anti-Slip Decking Plank | 500 mm wide | 8.70 | 6 m |
| GRP fencing profile | |||
| Top Hat Profile | — | 0.98 | 6 m |
| GRP unistrut | |||
| Unistrut Section | 41 × 41 mm | 0.92 | 6 m & 3 m |
| GRP solid rods | |||
| Solid Rod – White | Ø7.9 mm | 0.10 | 6 m |
| Solid Rod – Black | Ø9.5 mm | 0.14 | 5 m |
| Solid Rod – White | Ø12.7 mm | 0.25 | 6 m |
| GRP round tubes | |||
| Round Tube | 9.5/3 mm | 0.12 | 6 m |
| Round Tube | 12.5/4 mm | 0.20 | 6 m |
| Round Tube | 16/12 mm | 0.17 | 5 m |
| Round Tube | 19/13 mm | 0.31 | 6 m |
| Round Tube | 22/17 mm | 0.31 | 6 m |
| Round Tube | 25/20 mm | 0.33 | 6 m |
| Round Tube | 31/25 mm | 0.51 | 6 m |
| Round Tube – Grey/Yellow | 38/32 mm | 0.62 | 6 m |
| Round Tube – Red/Yellow | 48.5/35 mm | 1.65 | 6 m |
| Round Tube – Grey/Yellow | 50/40 mm | 1.31 | 5 m & 6 m |
Stock availability, colours and final lengths should be confirmed with Captrad before ordering.
GRP Pultrusions & Structural Profiles can support commercial, industrial and infrastructure projects where safety, durability and long-term performance matter. Our team can help consider environment, dimensions, quantities, finishes and installation requirements.
Share your requirements with Captrad to discuss availability, material options and a tailored quotation. Include any drawings, dimensions, performance requirements or delivery timescales that will help us advise accurately.
Project questions
Answers to the questions our technical sales team is most often asked.
GRP Pultrusions & Structural Profiles is used in structural, reinforcement and fabrication applications where corrosion resistance and practical handling are important.
Start with the required section or product type, dimensions, span or structural role, loading, connection details and operating environment.
Many GRP profiles can be cut and incorporated into fabricated assemblies. Confirm the intended fabrication, connection and fixing details with Captrad before ordering.
Provide section dimensions, lengths, quantities, drawings, connection details, project environment and programme so suitable options can be discussed.
Yes. Captrad can discuss standard stock sections alongside bespoke fabrication and project-specific requirements.
Yes, subject to the product specification and project requirements. Captrad can advise whether grp pultrusions & structural profiles is appropriate for access, cable management, equipment protection or supporting infrastructure in BESS, solar-farm, data-centre and rail environments.
Start your project
Tell us what you need and the Captrad team will respond with practical product support.
Contact Captrad for stock, technical advice or a bespoke manufacturing quotation.
Call 01695 280510