Anti-Slip Covers For Existing & New Staircases
GRP stair tread covers provide a permanent anti-slip surface for concrete, steel and timber staircases. Manufactured from glass reinforced plastic (GRP) with an integrated silicon carbide grit finish, they are commonly specified where worn, slippery or damaged stair treads require refurbishment without replacing the underlying staircase.
Suitable for industrial facilities, transport infrastructure, public buildings, utility sites and external access routes, GRP tread covers improve slip resistance while increasing step visibility through integrated high-contrast nosings.
Covers can be supplied in a range of sizes, colours and grit grades to suit different environments and project requirements.
Slip Resistance & Stair Refurbishment Performance
GRP stair tread covers are designed to provide long-term slip resistance in environments exposed to water, oils, contamination and heavy pedestrian traffic. The silicon carbide gritted surface maintains traction underfoot while the GRP substrate remains resistant to corrosion, moisture and weathering.
Because covers are installed directly over existing stair treads, refurbishment can often be completed without removing the original staircase. This reduces disruption while extending the service life of concrete, steel and timber stair systems.
GRP Stair Tread Cover Performance Characteristics
| Characteristic | Description |
|---|---|
| Slip Resistance | Silicon carbide gritted surface available in fine, medium and coarse grades. |
| Stair Refurbishment | Installed directly over existing stair treads without full replacement. |
| Substrate Compatibility | Suitable for concrete, steel and timber staircases. |
| Nosing Visibility | High-contrast nosing options available to improve step definition. |
| Corrosion Resistance | Resistant to moisture, chemicals and external weathering. |
| Colours | Available in standard and project-specific BS or RAL colours. |
| Profile Thickness | Low-profile design minimises changes to stair geometry. |
| Fixing Methods | Adhesive, mechanical fixings or combined fixing methods. |
| Typical Applications | Industrial facilities, public buildings, transport infrastructure and external access routes. |
GRP stair tread covers are commonly installed within industrial facilities, public buildings, schools, transport infrastructure, utility sites and external access routes. They are particularly suited to refurbishment projects where existing concrete, steel or timber staircases require improved slip resistance without complete replacement.
| Characteristic | Description |
|---|---|
| Slip Resistance | Silicon carbide gritted surface available in fine, medium and coarse grades. |
| Visibility | High-contrast nosing options available. |
| Corrosion Resistance | Suitable for wet, chemical and external environments. |
| Installation | Can be installed over existing stair substrates. |
| Service Life | Long-term anti-slip performance with minimal maintenance. |
| Specification | Options |
|---|---|
| Thicknesses | 4.5mm and 6mm |
| Maximum Length | Up to 3660mm |
| Maximum Depth | Up to 345mm |
| Manufacture | Cut to project-specific dimensions |
| Colours | Standard and BS/RAL colours available |
| Specification | Details |
|---|---|
| Material | Glass Reinforced Plastic (GRP) |
| Resin Type | Isophthalic Polyester |
| Surface Finish | Silicon Carbide Grit |
| Alternative Finishes | Gritted, Chequer Plate, Smooth |
| Fire Performance | Fire-rated options available |
| Fixing Methods | Adhesive, screws or bolts |
British Standard Test Results
BS 4592 testing is used to assess the slip resistance of industrial flooring intended for wet and water-exposed environments.
A co-efficient of friction (CoF) is calculated by determining the mean angle of inclination that an operator can safely maintain when the flooring is subjected to a continuous flow of water.
Co-efficient of Friction (Cof)
GRP Stair Tread Covers FAQs
GRP stair tread covers are overlay panels that fit directly over existing steps to provide an extremely slip-resistant surface. Made from glass reinforced plastic with a gritted top, they are designed to improve step safety quickly without rebuilding the staircase.
Yes. They are specifically designed to be fixed onto existing timber, concrete or metal treads. This avoids the cost and disruption of full stair replacement and is ideal for upgrading live sites.
Yes. GRP is corrosion-resistant and waterproof, and the silicon carbide grit provides secure footing in rain, frost and icy conditions. They are widely used on external stairs, fire escapes and exposed access routes.
The high-visibility front nosing improves the contrast at step edges, supporting compliance with DDA guidance and good practice for accessible public environments.
They can be bonded using suitable adhesives and/or mechanically fixed with screws or bolts. For heavy-duty or high-traffic applications, a combination of bonding and mechanical fixings is recommended.
Standard covers are supplied to suit common stair widths and tread depths, with black deck and yellow nosing as the most popular combination. However, we can produce almost any BS or RAL colour and alternative nosing colours if required.
With correct installation and basic maintenance, GRP stair tread covers offer many years of service. They do not rust or rot and maintain their slip resistance far longer than traditional coatings or tapes.
Routine cleaning with a stiff brush and mild detergent is usually sufficient to remove dirt and contamination from the gritted surface. Periodic inspection of fixings is recommended in high-traffic areas.
Need Technical Advice or a Quote?
Advice is available on panel selection, loading requirements, span capability, fabrication options and installation methods. Drawings, specifications and project information can be reviewed to assist with product selection and system design.