Why choose GRP Gratings?
What are GRP Gratings?
GRP (Glass Reinforced Plastic) Gratings, also commonly known as fibreglass gratings are high-performance, open-mesh, composite flooring and structural panels used primarily for industrial flooring, walkways, platforms, and stair treads. They are engineered as a safer, more durable, and lighter alternative to traditional steel or aluminium mesh grating.
Engineered from a combination of high-strength fibreglass strands and durable resin, GRP gratings are specifically designed to provide a safer, lighter, and more durable alternative to traditional steel or timber grid flooring, particularly in demanding or hazardous environments.
What are the choices when it comes to GRP Gratings?
At F.H.Brundle, we offer a wide variety of high-strength, lightweight, and corrosion-resistant GRP grating configurations. Ideal for both industrial and commercial environments, when choosing the right GRP grating for a project, we offer a wide variety of configurations in in four colours Green, Grey, Yellow and Sand, tailored to specific structural and environmental needs.
| Feature Category | Key Benefit | Detail |
|---|---|---|
| Structural & Material Strength | High strength-to-weight ratio | Built with glass fibre to provide robust bi-directional strength. Available in thicknesses of 25mm, 30mm, 38mm, and 50mm. |
| Installation | Fast and efficient installation | Gratings can be quickly customized and cut with standard tools to fit complex configurations with minimal material waste. |
| Safety | Superior Anti-Slip Protection | Gratings feature a grit top finish embedded directly into the material during manufacturing, drastically minimising slip-and-fall hazards, maintaining safe underfoot traction. |
| Finish | Fade-Resistant Colour | Pigment is blended directly into the material so colours will not chip or wear away under high foot traffic or intense sunlight. Colour availability includes: Grey, Green, Yellow, and Sand. |
| Durability & Longevity | Built for demanding environments | Manufactured from high-grade Glass Reinforced Plastic (GRP), completely resistant corrosion and demanding industrial footprints . |
| Maintenance & Cost Savings |
Low maintenance | Cost of ownership by eliminating the need for recurring maintenance or repairs. Formulated with a built-in UV inhibitor to withstand extreme hot or cold weather without degrading. |
Where can GRP Gratings be used?
GRP (Glass Reinforced Plastic) Gratings are suitable for many applications across industrial, commercial, and residential sectors. Thanks to their anti-slip performance, high strength-to-weight ratio, and resistance to corrosion, and fire, they can be used in the following environments and structural layouts:
- Walkways & Footpaths
- Platforms & Gantries
- Work Stations & Factory Floors
- Ramps & Gangways
- Raised Flooring & Mezzanines
- Trench Covers & Gullies
- Staircases
Why are GRP Handrails so popular?
GRP (Glass Reinforced Plastic) gratings are incredibly popular because they solve the biggest drawbacks of traditional steel, timber, and aluminium flooring. They combine high durability with a massive safety profile, offering a lower total cost of ownership.
(1) Slip Resistance: A grit top finish embedded into the walking surface during the moulding process. This provides maximum traction and excellent
anti-slip properties, dramatically reducing the risk of slips, trips, and falls even when the grating is completely wet, icy, oily, or covered in grease.
(2) High Strength-to-Weight Ratio: GRP gratings are strong and capable of handling heavy loads, but they are up to 75% lighter than traditional steel. This lightweight design offers major practical and financial advantages, reducing the need for heavy lifting equipment and lowers transport costs.
(3) Corrosion and Chemical Resistance: GRP is completely impervious to harsh environments and corrosion. It is highly resistant to a wide range of aggressive industrial chemicals, toxic spills, acid rain, frost, and continuous salt-water exposure.
(4) Zero Maintenance: GRP gratings require virtually no upkeep over a service life that can comfortably exceed 25 to 50 years. They do not deteriorate when exposed to the elements, making them an incredibly cost-effective long-term solution.
(5) Non-Conductivity: GRP acts as a complete electrical and thermal insulator. Because it is non-conductive, it eliminates grounding or electrical shock hazards, making it highly popular for electrical substations, rail infrastructure, and high-voltage zones.
(6) Fire Retardancy: The materials are formulated with fire retardants to resist ignition and slow down flame spread, successfully meeting the Class 1 rating under the BS 476: Part 7 testing standards.
Technical Standards & Compliance
At F.H.Brundle, quality and safety are paramount. Our GRP gratings are manufactured to the highest industry standards to ensure your project meets the required levels of compliance:
• GRP Safety grating fully complies with BS 4592-6:2008 (Industrial GRP Flooring).
• Fire Retardancy: Available in grades that meet BS 476 Part 7 Class 1 or 2 (flame retardant) and low-smoke toxicity requirements.
GRP in Challenging Environments
Glass Reinforced Plastic (GRP) is valued for its strength, low weight and corrosion resistance, but its real advantages become clear in environments where traditional materials struggle. Whether exposed to seawater, chemicals, harsh weather or demanding industrial conditions, GRP provides long-term performance with minimal maintenance.
Marine & Coastal Environments
Saltwater is one of the harshest environments for construction materials. Steel structures require protective coatings and regular maintenance to prevent corrosion, particularly in splash zones where constant wetting and drying accelerate deterioration.
GRP is naturally resistant to corrosion because it contains no metal. It won’t rust, even in coastal or offshore applications, making it an ideal choice for harbour infrastructure, marinas, offshore platforms, coastal walkways and other marine installations. With the correct resin system, GRP can deliver an exceptionally long service life without the need for ongoing protective treatments.
Water & Wastewater Treatment
Water treatment facilities present a demanding combination of moisture, chlorine, hydrogen sulphide and other aggressive chemicals that quickly attack conventional steelwork.
GRP is unaffected by these conditions, making it well suited to walkways, platforms, handrails, ladders and access systems throughout water and wastewater treatment plants. Unlike painted steel, GRP requires no repainting programme and significantly reduces long-term maintenance costs.
Chemical Processing
Many industrial environments expose materials to acids, alkalis and other corrosive substances. By selecting the appropriate resin formulation, GRP can be specified for a wide variety of chemical applications where coated steel would require regular inspection and maintenance.
GRP is widely used within chemical processing plants, pharmaceutical facilities, battery manufacturing and laboratories, providing reliable performance in demanding operating conditions.
Outdoor & UV Exposure
Constant exposure to sunlight can affect many materials over time. While the surface of GRP may naturally weather, its structural integrity remains unaffected throughout its design life.
Where appearance is important, UV-stabilised resin systems and colour-integrated finishes maintain their appearance for many years without peeling, flaking or requiring repainting, making GRP ideal for fencing, handrails and external infrastructure.
Electrical Safety
Unlike steel or aluminium, GRP is non-conductive, making it an excellent choice wherever electrical safety is critical. It is frequently specified around substations, power generation facilities, rail infrastructure and industrial sites where reducing the risk of electrical conductivity is essential.
Strength Where It Matters
GRP offers an excellent strength-to-weight ratio, making it easier to transport, handle and install than traditional steel components. While steel remains the preferred choice for applications involving extremely high point loads, GRP provides more than sufficient structural performance for the vast majority of access structures, including walkways, platforms, handrails, grating and fencing systems.
Products are independently tested and designed to meet recognised industry standards, giving engineers and contractors confidence in their long-term performance.
Fire Performance Options
GRP can be manufactured with different resin systems to suit specific fire performance requirements. Fire-retardant grades are available for applications such as transport infrastructure, public buildings, offshore installations and data centres, while specialist phenolic resin systems offer exceptionally low smoke generation and flame spread for the most demanding environments.
Selecting the correct specification ensures GRP meets both structural and fire safety requirements for the intended application.
Built for Long-Term Performance
No material is suitable for every application, but where corrosion, chemical exposure, electrical insulation and low maintenance are key design priorities, GRP consistently delivers outstanding whole-life value.
Its combination of durability, lightweight construction and resistance to harsh environments makes GRP an increasingly popular alternative to traditional steel across industrial, commercial and infrastructure projects.
FAQS
GRP Glass Reinforced Plastic Products are used across multiple industries, including construction, marine, railways, electrical substations, chemical plants, and manufacturing facilities. Common applications include walkways, platforms, ramps, gantries, factory floors, pontoons, raised flooring, machine guards, roof access ladders, handrail systems, and perimeter fencing where corrosion resistance and safety are essential.
Yes, GRP products feature integrated gritted or concave surfaces that provide outstanding anti-slip traction, even in wet or oily conditions. GRP stair treads include high-contrast coloured nosing that complies with UK Building Regulations and DDA requirements, significantly reducing slip hazards and improving visibility for partially sighted individuals.
No, GRP requires virtually zero maintenance throughout its 50+ year service life. Unlike steel, it never needs painting, galvanizing, rust treatment, or protective coatings. It won’t rot like wood or corrode like metal, eliminating ongoing maintenance costs and making it the most cost-effective long-term solution.
GRP products are significantly easier to install than steel alternatives due to their lightweight nature (up to 70% lighter). They can be handled and installed without heavy lifting equipment, cut on-site using standard tools, and quickly adjusted to fit complex layouts. This results in faster installation times and reduced labour costs.
Yes, GRP is non-conductive and acts as both an electrical and thermal insulator. This prevents shock hazards and makes it ideal for electrical substations, railway environments, and any location where electrical safety is critical. Unlike metal alternatives, GRP eliminates the risk of electrical cross-over accidents.
GRP Glass Reinforced Plastic Products, also known as fibreglass or FRP, is a composite material made from high-strength glass fibres reinforced with vinyl ester or polyester resin. It offers superior corrosion resistance, durability, and strength compared to traditional materials like steel and wood, making it ideal for industrial, commercial, and public-sector applications.
GRP Glass Reinforced Plastic Products offer ultimate corrosion resistance, UV stability, and exceptional durability, while also being incredibly lightweight (up to 70% lighter than steel). They’re non-conductive, making them safe for electrical environments, require virtually zero maintenance, and have a service life of 50+ years. GRP also provides superior anti-slip properties and can be easily fabricated on-site using standard tools.
While GRP Glass Reinforced Plastic Products may have a higher initial cost than steel or aluminium, it delivers a lower total cost of ownership due to zero maintenance requirements, complete rust resistance, and a 50+ year lifespan. GRP eliminates the need for painting, galvanizing, or frequent repairs, is up to 70% lighter for easier installation, and won’t corrode in harsh chemical or marine environments.
Yes, GRP is exceptionally well-suited for outdoor and marine environments. It’s completely resistant to salt water, rust, rot, and UV degradation. GRP remains unaffected by extreme heat, cold, or continuous sun exposure, making it perfect for pontoons, walkways, coastal installations, and any application exposed to harsh weather conditions.
F.H. Brundle offers a comprehensive range of GRP products, including gratings (in green, grey, sand, and yellow), stair treads and covers, structural profiles (angles, I-beams, channels, tubes), handrail systems (round and square), anti-slip nosing, flat sheets, decking boards, ladders, palisade fencing, reinforcing bars, and safety gates.
