GRP Grating Stair Treads are designed for demanding environments where safety, durability and resistance to environmental conditions are important. The combination of a reinforced GRP structure and resin-coated gritted surface provides a hard-wearing stair tread suitable for both indoor and outdoor use.

Key Technical Performance

• Material: Glass Reinforced Polyester (GRP) with resin-coated gritted surface.
  
• Slip resistance: Excellent slip resistance, Level 3.
  
• Slip testing: Tested to BS 7976.2 with PTV classified as 'Extremely Low' slip potential in wet and dry conditions and 'Low' slip potential in oily and greasy conditions.
  
• Coefficient of friction: Dry 72, Wet 68, Oil 63.
  
• Wear resistance: Excellent wear resistance, Level 3, suitable for heavy footfall.
  
• Fire classification: EN 13501-1 Class B-s1, d0.
  
• ASTM fire classification: ASTM E84-2018 Class 1.
  
• Temperature resistance: -50°C to +110°C.
  
• UV resistance: Yes.
  
• Chemical resistance: Yes.
  
• Corrosion resistance: Yes.
  
• Impact resistance: Yes.
  
• Flame retardant: Yes.
  
• Electrical properties: Non-conductive, including high-voltage applications.
  
• Anti-microbial: Yes.
  
• Indoor & outdoor use: Yes.
  
• Wet, oily and greasy areas: Suitable.
  
• Wheeled areas: Suitable.
  
• Cut to size: Yes.
  
• Cut to length: Yes.
  
• Tested for Demanding Conditions

The performance data demonstrates that these stair treads are designed for considerably more than general-purpose pedestrian use. Their slip and wear resistance make them suitable for areas subject to heavy footfall, while resistance to chemicals, corrosion, UV exposure and impact allows them to perform in challenging environments.

The treads have also undergone UV weathering testing to ISO 4892-2, with testing carried out for 5,000 hours. Their temperature resistance of -50°C to +110°C further demonstrates their suitability for environments where significant temperature variation can occur.

Good to Know:

Technical performance should always be considered alongside the actual installation environment. Factors such as the staircase construction, expected traffic, contaminants, temperature and fixing method can all influence the suitability of a stair tread for a particular project.

From the Mats4U Team

If you're specifying GRP stair treads for a commercial or industrial project, don't just look at the product dimensions. The technical performance can be just as important. Slip testing, wear resistance, fire classification, temperature resistance and chemical resistance can help you establish whether the tread is appropriate for the conditions it will actually face.

Stairways can become particularly hazardous when water, oil, grease, mud or other contaminants are present. A conventional smooth or lightly textured surface can lose traction when contaminated, increasing the risk of slips and falls. GRP Grating Stair Treads are designed to provide a much higher level of grip, helping maintain safer footing in demanding conditions.

The walking surface features a resin-coated gritted finish that provides excellent traction underfoot. The aggressive texture helps footwear maintain contact with the tread, even when the surface is exposed to moisture or other contaminants.

Independent testing demonstrates the high level of slip resistance provided by the gritted surface. The treads have been tested to BS 7976.2, achieving a Pendulum Test Value (PTV) classified as 'Extremely Low' slip potential in both wet and dry conditions, with a 'Low' slip potential in oily and greasy conditions.

The tested coefficient of friction (CoF) values are:

• Dry: 72
  
• Wet: 68
  
• Oil: 63

This makes GRP Grating Stair Treads particularly suitable where maintaining reliable traction is a priority. The combination of a highly textured surface and open grating construction means the tread can continue to provide effective grip while allowing water and contaminants to pass through rather than remaining concentrated on the walking surface.

Designed for Heavy Footfall

Slip resistance is only part of the equation when specifying stair treads for demanding environments. The surface also needs to withstand repeated use without quickly wearing smooth.

These GRP Grating Stair Treads have an excellent wear-resistance rating and are suitable for areas subject to heavy footfall. Their hard-wearing gritted surface is designed to maintain its performance over prolonged use, making them a practical long-term solution for heavily used stairways and access points.

Good to Know:

Slip resistance can be affected by footwear, contamination, tread condition and the surrounding environment. Even a highly slip-resistant tread should be kept reasonably clean and free from excessive contamination to maintain optimum performance.

From the Mats4U Team

When we're helping customers choose an anti-slip stair tread, we always recommend considering what is likely to be on the stairs rather than simply whether the stairs are indoors or outdoors. If water, oil, grease or heavy contamination is part of the environment, a tread with a genuinely aggressive gritted surface is worth considering. The testing data gives you a much better indication of performance than simply describing a product as 'anti-slip'.

One of the key advantages of GRP Grating Stair Treads is their open construction. Unlike a solid stair tread, the grating allows water, air and loose debris to pass through the surface rather than collecting on top of the step.

This is particularly valuable on exposed stairways where rainwater can quickly accumulate. Instead of relying entirely on the tread surface to shed water, the open structure provides a direct route for liquids to drain away. This helps reduce standing water and allows the gritted surface to remain more accessible underfoot.

The same principle applies to dirt, mud and other loose debris. Small particles can pass through the openings in the grating, reducing the amount of contamination that remains on the walking surface. This can be especially useful in environments where keeping every step completely clear between cleaning cycles is difficult.

Improved Air Circulation Beneath the Tread

The open structure also allows air to circulate through and beneath the tread. This can help moisture dissipate rather than becoming trapped against the underlying staircase.

For external stairs and access points exposed to changing weather conditions, this design can provide an important practical advantage. Water has somewhere to escape, while the space beneath the tread is not completely enclosed.

The result is a stair tread designed around the conditions that can make stairways difficult to keep safe: water, debris and contamination.

Open Grating Without Compromising Strength

An open grating design does not mean a lightweight or fragile product. These stair treads are manufactured from Glass Reinforced Polyester (GRP), providing a strong and durable structure while keeping the tread relatively lightweight and easy to handle.

The combination of a rigid GRP construction, gritted walking surface and open profile makes these treads suitable for demanding environments where both drainage and durability are important.

Top Tip:

When choosing between a solid and grating-style stair tread, think about what happens to the staircase after rain, cleaning or contamination. If water and debris have nowhere to go, an open grating design can be a much more practical solution.

From the Mats4U Team

For exposed stairs, we think drainage is often overlooked when choosing an anti-slip tread. It's easy to focus on how much grip a product provides, but if water and debris are constantly sitting on the surface, the staircase can still become difficult to keep clean and safe. The open construction of these GRP treads addresses that problem at the design level rather than relying solely on regular cleaning.

GRP Grating Stair Treads are manufactured from Glass Reinforced Polyester (GRP), a composite material that combines a strong fibreglass reinforcement with a durable polyester resin. This creates a rigid, hard-wearing tread that is designed to withstand demanding conditions while remaining considerably easier to handle than many traditional stair materials.

One of the main advantages of GRP is its resistance to rust and corrosion. Unlike steel or other metals that can deteriorate when repeatedly exposed to moisture, GRP does not rust. This makes it particularly useful where stairways are exposed to rain, humidity, cleaning chemicals or other corrosive conditions.

Resistant to Harsh Environmental Conditions

GRP Grating Stair Treads are designed to cope with more than everyday foot traffic. The material is resistant to chemicals, impact, UV exposure and corrosion, helping the treads maintain their structural integrity in challenging environments.

They are also suitable for a wide temperature range of approximately -50°C to +110°C, making them suitable for applications exposed to significant changes in temperature. UV resistance provides additional protection for outdoor installations where prolonged exposure to sunlight can cause some materials to deteriorate.

Unlike timber, GRP will not rot when exposed to moisture. It also does not twist or warp under wet conditions, helping the tread retain its intended shape and performance over time.

Lightweight Without Sacrificing Durability

Despite their robust construction, GRP stair treads are relatively lightweight and easy to handle. This can make transportation, positioning and installation easier than working with heavier traditional materials such as steel.

The combination of strength, low weight and resistance to corrosion makes GRP an attractive choice where a durable stair tread is required without introducing unnecessary weight or maintenance requirements.

Good to Know:

GRP is not simply a plastic alternative to metal. The glass reinforcement gives the material its structural strength, while the resin provides resistance to moisture, chemicals and environmental exposure. This combination is what makes GRP particularly useful for demanding access applications.

From the Mats4U Team

If you're replacing metal stair treads in an area where rust or corrosion has become a recurring problem, GRP is well worth considering. You may pay more attention to the initial material choice, but choosing a material that doesn't rust or rot can significantly reduce the maintenance issues associated with long-term exposure to moisture and harsh conditions.

For many years, stair treads were commonly manufactured from materials such as mild steel, stainless steel, aluminium and timber. While each material has its advantages, they can also present challenges when exposed to demanding environments, particularly where moisture, chemicals or heavy foot traffic are involved.

GRP Grating Stair Treads offer a practical alternative that combines durability, slip resistance and ease of installation in a single product. Their lightweight construction helps reduce handling requirements, while the corrosion-resistant properties of GRP help minimise some of the maintenance issues associated with traditional materials.

Why Consider GRP Instead of Metal or Timber?

Unlike mild steel, GRP does not rust when exposed to water or humid conditions. It is also resistant to many chemicals that may be present in industrial, marine or commercial environments.

Compared to timber, GRP will not rot, absorb moisture or warp when exposed to changing weather conditions. This makes it particularly attractive for external stairways and access points where long-term exposure to the elements is unavoidable.

GRP also offers advantages over some traditional materials when it comes to installation. The relatively lightweight construction can make handling easier and may reduce the amount of labour and specialist equipment required during installation.

Long-Term Value

When evaluating stair treads, it's important to consider more than just the initial purchase price. Maintenance requirements, expected lifespan, installation costs and suitability for the environment can all influence the overall cost of ownership.

GRP Grating Stair Treads are designed to provide:

• Long-term durability.
  
• Excellent slip resistance.
  
• Resistance to rust and corrosion.
  
• Low maintenance requirements.
  
• Lightweight handling and installation.
  
• Reliable performance in challenging environments.

These qualities make them a popular choice for projects where safety, durability and long-term value are important considerations.

Things to Consider:

No single material is perfect for every application. The best choice will depend on the environment, level of foot traffic, exposure to moisture and the performance requirements of the project. GRP is often chosen because it offers a balance of durability, slip resistance and corrosion resistance without many of the drawbacks associated with traditional materials.

From the Mats4U Team

When customers compare GRP with steel or timber, the conversation often starts with price. However, we encourage people to look at the bigger picture. Factors such as corrosion resistance, maintenance requirements, installation costs and expected service life can be just as important as the initial purchase price. In many demanding environments, these long-term considerations are what make GRP such a popular choice.

GRP Grating Stair Treads are designed to make installation as straightforward as possible. Their relatively lightweight construction makes the treads easier to handle and position, while the GRP material can be worked with limited tooling compared with many traditional stair materials.

The treads can be cut to length and size, allowing them to be adapted to individual stair dimensions and project requirements. This is particularly useful when working with existing staircases where standard dimensions may not provide an exact fit.

A Choice of Fixing Options

Different stair structures and installation environments require different fixing methods. For this reason, optional fixing clips, bolts and clamps are available separately where required.

The appropriate fixing method will depend on factors such as the existing staircase construction, the substrate, the installation environment and the specific project requirements. Choosing the correct fixing system is important to ensure the tread is securely attached and remains stable during use.

Designed for Straightforward Site Installation

The combination of lightweight GRP construction, cut-to-size capability and limited tooling requirements can help simplify installation work. This can be particularly beneficial on projects where access is restricted or where heavy materials and extensive specialist equipment would make installation more difficult.

The treads can be prepared to the required dimensions before installation, helping contractors achieve a neat and consistent fit across the staircase.

Please note that cutting tolerance is ±5mm, so measurements should be checked carefully before cutting or ordering bespoke sizes.

Buying Advice:

Always measure the actual stair before ordering or cutting a GRP tread. Stair dimensions can vary, particularly on older or heavily used staircases, and allowing for the correct width, depth and fixing position will help achieve a secure and professional installation.

From the Mats4U Team

We'd recommend deciding how the tread will be fixed before starting the installation rather than treating the fixing method as an afterthought. The staircase structure and substrate can make a significant difference to which fixing option is most appropriate. If you're unsure what you'll need, it's worth checking the fixing requirements with us before ordering so we can help you identify the right accessories for the project.

GRP Grating Stair Treads are designed to be straightforward to maintain, even in areas where dirt, mud and other debris are regularly brought onto the staircase.

For everyday cleaning, a stiff brush will normally be sufficient to remove loose dirt and debris from the gritted surface and open grating. The open construction also helps prevent water and loose contamination from remaining trapped on the walking surface.

For more stubborn dirt, the treads can be washed with warm water and a mild detergent. Where appropriate, a pressure washer can also be used on a low-pressure setting to help remove more persistent contamination.

Regular cleaning is particularly important on heavily used stairways. Although the gritted surface provides excellent slip resistance, allowing dirt, oil or other contaminants to build up can affect the performance of any stair tread.

Minimal Maintenance Requirements

GRP is naturally resistant to rust, corrosion, rot and many environmental conditions, meaning the treads do not require the same type of ongoing maintenance as materials that can deteriorate when exposed to moisture.

There is no need to paint the GRP surface to protect it from rust, and its resistance to UV exposure helps it remain suitable for outdoor applications. Combined with its durable construction, this makes GRP Grating Stair Treads a practical low-maintenance solution for demanding stairways and access points.

Top Tip:

Cleaning frequency should reflect the environment rather than follow a fixed schedule. A lightly used indoor staircase may only need occasional cleaning, while stairs exposed to mud, oil, grease or heavy foot traffic may require more frequent attention.

From the Mats4U Team

One of the advantages we like about GRP is that maintenance is refreshingly simple. There are no complicated cleaning products or specialist processes needed for routine care. A stiff brush and appropriate cleaning solution will usually take care of everyday dirt, while the open grating makes it easier for loose debris and water to clear from the tread.

What are GRP Grating Stair Treads?

GRP Grating Stair Treads are heavy-duty stair treads manufactured from Glass Reinforced Polyester (GRP). They feature a resin-coated gritted surface for high slip resistance combined with an open grating construction that allows water, air and loose debris to pass through.

What is the difference between GRP Grating Stair Treads and solid GRP Stair Treads?

The main difference is the construction. GRP Grating Stair Treads have an open grating profile, allowing water and debris to drain through the tread. Solid GRP Stair Treads have a continuous surface. Grating treads are therefore particularly useful where drainage and air circulation are important.

Are GRP Grating Stair Treads suitable for outdoor stairs?

Yes. They are designed for both indoor and outdoor use and are resistant to UV exposure, corrosion, moisture and changing temperatures. Their open construction also makes them particularly useful on external stairways where rainwater needs to drain away.

Are these stair treads suitable for wet areas?

Yes. The gritted surface provides excellent slip resistance in wet conditions, while the open grating allows water to pass through rather than pooling on the walking surface.

Can GRP Grating Stair Treads be used where oil or grease is present?

Yes. The treads are suitable for oily and greasy areas and have been tested for slip resistance under oily and greasy conditions. As with any anti-slip surface, regular cleaning is important where contamination is present.

Can the GRP stair treads be cut to size?

Yes. The treads can be cut to length and size to suit individual staircase requirements. A cutting tolerance of ±5mm should be allowed for when preparing the tread.

How are GRP Grating Stair Treads installed?

Installation requirements depend on the staircase and substrate. Optional fixing clips, bolts and clamps are available separately. The lightweight GRP construction and limited tooling requirements can help make installation straightforward.

Are fixing clips, bolts and clamps included?

No. Fixing clips, bolts and clamps are available separately if required. The appropriate fixing method will depend on the staircase construction and installation requirements.

Are GRP Grating Stair Treads suitable for heavy footfall?

Yes. The treads have an excellent wear-resistance rating and are suitable for heavy footfall. Their hard-wearing gritted surface is designed for demanding stairways and access points.

Are GRP Grating Stair Treads resistant to chemicals?

Yes. GRP is resistant to chemicals, corrosion and rust, making these treads suitable for demanding environments where exposure to corrosive substances may occur. The suitability of the product should still be assessed against the specific chemicals involved in an installation.

Can GRP Grating Stair Treads be used in freezing temperatures?

Yes. The stated temperature resistance is approximately -50°C to +110°C, making the treads suitable for environments subject to significant temperature changes and freezing conditions.

Are GRP Grating Stair Treads electrically conductive?

No. GRP is non-conductive, including for high-voltage electrical applications. This can make GRP a suitable choice where electrical insulation is an important consideration.

Are GRP Grating Stair Treads wheelchair friendly?

The low-profile design is described as suitable for wheeled access, including wheelchair users. However, the complete staircase and surrounding access route should always be assessed to ensure it is appropriate for the intended users.

How do you clean GRP Grating Stair Treads?

For everyday dirt and debris, a stiff brush will normally be sufficient. More stubborn contamination can be removed using warm water and a mild detergent. A pressure washer can also be used on a low-pressure setting where appropriate.

Will GRP Grating Stair Treads rust or rot?

No. GRP does not rust like metal and will not rot like timber when exposed to moisture. It is also resistant to corrosion, making it suitable for wet and demanding environments.

What colours are available?

The GRP Grating Stair Treads are available in Yellow/Black, Green/Yellow and Grey/Yellow colour combinations. The contrasting colours can also help make the edge of the stair more visually prominent.

Are GRP Grating Stair Treads suitable for industrial environments?

Yes. Their combination of slip resistance, wear resistance, chemical resistance, corrosion resistance and durability makes them suitable for demanding commercial and industrial environments, as well as construction, marine, rail, leisure and other applications.

Good to Know:

Choosing the right GRP stair tread isn't only about finding a product with a high slip-resistance rating. Consider the environment, contamination, drainage requirements, expected footfall, fixing method and exposure to chemicals or weather before specifying the tread.

From the Mats4U Team

If you're unsure whether a GRP Grating Stair Tread or a solid GRP Stair Tread is better suited to your staircase, the environment is usually the best place to start. For stairs exposed to significant water, mud, debris or other contamination, the open grating design can offer a clear practical advantage. If you're still unsure, get in touch with the Mats4U team and we'll help you work through the requirements.