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GRP Decking

Long-lasting, anti-slip GRP decking systems for industrial, rail, public, and rooftop environments. Lightweight, corrosion-resistant, and built for safety.

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Deck500

Engineered Composites GRP decking systems are engineered to perform in tough conditions where safety, durability, and low maintenance are essential. From walkways and platforms to rooftop installations and public footbridges, GRP decking provides superior grip, corrosion resistance, and structural strength in a lightweight design.

Manufactured from fibreglass-reinforced plastic, our decking products are non-conductive, weatherproof, and built to meet UK and international safety standards, making them ideal for both new construction and refurbishment projects.

GRP Decking

GRP Decking Products We Offer

We offer a range of GRP decking systems tailored for both new builds and retrofitting. Each product is designed to enhance safety, reduce maintenance, and perform in challenging environments, from industrial platforms to public access areas. Whether you need full structural panels or slip-resistant strips, our solutions are built for long-term reliability and compliance.

Deck 500

High-strength GRP decking panel with integrated quartz-gritted anti-slip surface. Designed for heavy-duty environments such as bridges, walkways, and access ramps.

Anti-Slip Decking Strips

Cost-effective retrofit strips to improve grip on timber, metal, or concrete decking. Ideal for stairs, ramps, and slippery surfaces.

All decking systems are built for strength, performance, and long-term use in safety-critical environments.

  • Deck 500 Size: 6 m x 500 mm

  • Thickness: 40 mm (other options available)

  • Weight: Approx. 12–15 kg/m²

  • Load Capacity: Up to 5 kN/m²

  • Surface: Quartz-gritted anti-slip finish

  • Fire Rating: ASTM E84 Class 2

  • Slip Resistance: BS 7976 certified

  • Colours: Grey, yellow, black, or custom RAL

  • Fixing Options: Stainless steel clips, screws, or adhesive for strips

Our GRP decking products are tested and certified to meet UK and EU health, safety, and construction standards for pedestrian access and industrial use:

Compliance with these standards ensures safe usage in high-traffic, chemically exposed, and safety-critical environments such as rail, marine, rooftop, and public access projects.

Corrosion & Weather Resistant

No rust, rot, or degradation over time

Non-Conductive & Fire Retardant

Safe for electrical and industrial sites

Lightweight & High Strength

Easy to install with exceptional durability

Why Choose GRP Decking?

GRP decking delivers a reliable, cost-effective alternative to traditional steel or timber platforms.

Slip-Resistant

Grit-top surface tested and certified

Weather and Chemical Resistant

Withstands moisture, salt, and industrial exposure

Non-Conductive

Safe for electrical and fuel-sensitive environments

Lightweight Yet Strong

Easier and faster to install than steel

Low Maintenance

No corrosion, painting, or surface sealing required

Custom Fit

Made to order in different lengths, widths, and colours

GRP decking

Need Help Choosing the Right GRP Decking? Talk to Our Experts!

We’ll help you choose the right solution based on safety, environment & compliance.

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Typical Applications for GRP Decking

GRP decking is used in a wide range of sectors that demand long-lasting, low-maintenance, and safe access surfaces. With its excellent strength-to-weight ratio, non-slip properties, and corrosion resistance, GRP decking is ideal for both new infrastructure and retrofitting projects.

Public Infrastructure

Used in pedestrian footbridges, viewing platforms, canal towpaths, and access ramps where public safety is critical. GRP decking ensures compliance with anti-slip regulations even in rain, frost, or snow.

Rail Industry

GRP decking panels are installed at train stations, depot platforms, and lineside walkways. Their non-conductive and weatherproof properties make them a safe and durable alternative to timber or steel.

Rooftop Access Routes

Engineered for lightweight installation, GRP decking provides safe walkways for access to HVAC units, solar panels, and maintenance areas — without compromising the structural load of the roof.

Energy and Utilities

Perfect for power stations, substations, and water treatment plants where exposure to chemicals, moisture, and high traffic demands materials that won't corrode or degrade over time.

Marine and Coastal Sites

Resistant to salt spray and constant moisture, GRP decking is suitable for marinas, piers, offshore platforms, and harbours where conventional materials deteriorate quickly.

Educational and Healthcare Facilities

Retrofit GRP decking strips and panels enhance safety on ramps, emergency exits, and outdoor staircases in schools, hospitals, and universities — providing reliable grip with minimal disruption.

Industrial Work Zones

Whether in factories, warehouses, or logistics depots, GRP decking provides strong, slip-resistant access for workers around machinery, loading bays, or elevated platforms

Case Study: Rooftop Helipad, Tres Cruces Hospital (Spain)

Engineered Composites supplied GRP Deck 500 panels to create a rooftop helicopter landing pad at Tres Cruces Hospital. The existing roof could not support a heavy steel deck, and downtime was not an option for emergency care.

Our GRP solution delivered:

  • A lightweight yet high-strength decking system

  • Non-sparking, non-conductive panels for aviation safety

  • Fast, low-disruption installation without structural modification

  • Long-term durability under UV exposure and weather variation

This project demonstrates the reliability and versatility of GRP decking in safety-critical applications.

Read the full case study
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FAQs About GRP Decking

Is GRP decking suitable for outdoor use?

Yes. GRP decking is specifically designed for outdoor environments exposed to rain, salt, UV, and temperature extremes. The material’s corrosion-resistant composition ensures outstanding durability in coastal, marine, and industrial applications. Its integral anti-slip surface provides reliable traction even in wet conditions, while UV-stabilised resin maintains colour and structural performance for decades. Engineered Composites’ GRP decking solutions are proven in bridge refurbishments, public walkways, and rooftop access systems across the UK.

How is it installed?

GRP decking is supplied as prefabricated panels for quick, low-disruption installation. Panels interlock or mechanically fix to supporting GRP or steel structures using stainless-steel clips or bolts. The lightweight design allows manual handling without heavy machinery, reducing installation time and costs. Engineered Composites’ DECK500 system features tongue-and-groove edges for a secure, seamless fit that prevents movement and water ingress. Panels can be cut or pre-fabricated to match specific site dimensions, ensuring accurate, efficient assembly.

Does it require maintenance?

GRP decking is virtually maintenance-free. It will not rust, rot, or require repainting, making it ideal for long-term outdoor or industrial use. Its gritted anti-slip surface maintains high traction without coatings or chemical treatments. Periodic cleaning to remove debris is usually all that’s needed to retain optimal performance. The durability and corrosion resistance of Engineered Composites’ GRP decking significantly reduce whole-life maintenance costs compared to steel or timber alternatives.

How long does GRP decking last?

With correct installation, GRP decking typically provides a service life of more than 50 years. The combination of high-strength glass fibre, isophthalic resin, and UV stabilisers ensures structural reliability and long-term resistance to weathering, impact, and corrosion. Engineered Composites manufactures to BS EN 13706 and ISO 9001 quality standards, giving confidence that each system will perform for decades with minimal maintenance, even in the harshest outdoor or chemical environments.

Is GRP decking fire rated?

Yes. Engineered Composites’ GRP decking systems are manufactured using fire-retardant resin to achieve a Class 2 fire rating under BS 476 Part 7. This ensures the material limits flame spread and maintains its structural integrity during exposure to heat. The combination of non-sparking properties, low smoke emission, and electrical insulation makes GRP decking a safe choice for industrial, marine, and public environments requiring strict compliance with UK fire-safety standards.

Can GRP decking be cut to size?

Absolutely. GRP decking can be supplied pre-cut to project dimensions or easily trimmed on site using standard diamond-tipped tools. Its lightweight composition allows fast adaptation for irregular layouts, service penetrations, or replacement sections without specialist equipment. Engineered Composites offers a free cutting service to ensure panels arrive ready for installation, saving time and ensuring precision fit across walkways, bridges, or platform projects.