Outdoor stair tread covers in GRP are high-quality, non-structural safety components for retrofitting existing staircases. As GRP stair tread covers for outdoor and indoor use, they permanently increase slip resistance, make step edges more visible, reduce the risk of slips and trips and improve overall stair safety. Suitable for concrete, metal, timber, tiled or grating stairs – indoors and outdoors.

Benefits of Our Stair Tread Covers
1. High slip resistance
- Permanently non-slip surface with mineral grit (e.g. aluminium oxide or silicon carbide).
- Secure footing even when wet, oily, dusty or dirty.
- Depending on the version, slip resistance up to R13 to DIN 51130 – the highest class – is possible.
2. Quick and easy retrofitting
- Installed by bonding or mechanical fixing.
- Ideal for refurbishment, upgrades and safety retrofits while operations continue.
3. Robust, durable, low-maintenance
- Made from glass-reinforced plastic (FRP/GRP).
- Resistant to corrosion, UV and weather, as well as to many chemicals.
- Long service life with minimal maintenance.
4. Better visibility of step edges
- Optionally with a high-contrast front edge (e.g. yellow/black).
- Improves depth perception and reduces trip hazards, especially in poor lighting.
5. Flexible and customisable
- Available in various widths, depths, thicknesses and colours.
- Special sizes and project-specific versions available on request.
Make your stairs safe now – with professional stair tread covers.
Technical Specifications of Our Anti-Slip Stair Treads

| Feature | Description |
|---|---|
| Material | FRP / GRP (glass-reinforced plastic) |
| Surface | Anti-slip, mineral grit |
| Slip resistance | Up to R13 to DIN 51130 (depending on version) |
| Fixing | Bonded or mechanical |
| Application | Indoor & outdoor |
| Options | Contrasting edge, special sizes, choice of colours |
Typical Applications for Outdoor Stair Tread Covers

Our slip-resistant step covers are used in settings including:
- Industry & manufacturing
- Production lines and machine access
- Maintenance and service stairs on plant
- Chemical, pharmaceutical and food production (wet or chemically exposed areas)
- Energy facilities (substations, power stations, battery storage)
- Oil, gas and water industries
- Logistics & infrastructure
- Warehouses, high-bay warehouses, distribution centres
- Loading docks, mezzanine floors, platforms
- Stairs in multi-storey and underground car parks
- Terminal and operational buildings at airports and ports
- Construction & trades
- Site stairs (temporary and permanent)
- Stairs in shell construction and refurbishment projects
- Access to scaffolding, plant containers and site cabins
- Public buildings
- Railway stations, underground and light rail entrances
- Schools, universities, nurseries
- Hospitals, care homes, rehabilitation centres
- Administrative buildings, courts, town halls
- Sports facilities, stadiums, swimming pools
- Commercial & services
- Shopping centres, retail parks, car parks
- Hotels, restaurants, event venues
- Office buildings with visitor traffic
- Stairs in retail and exhibition spaces
- Outdoor areas & weather exposure
- External stairs on industrial units and office buildings
- Outdoor escape routes
- Stairs in coastal, port and offshore environments
- Areas exposed to frost, snow or ice
- Safety & special applications
- Escape stairs in line with health and safety requirements
- Emergency exits and fire service access
- High-security areas with stricter slip and visibility requirements
- Accessibility support through better edge visibility
- Refurbishment & existing buildings
- Retrofitting old, smooth or damaged stairs
- Safety upgrade after a change of use or increased footfall
Why Use Stair Tread Covers?
- Accident prevention: significantly fewer slips, trips and falls.
- Safety compliance: supports your occupational health and safety requirements.
- Cost-effectiveness: low investment, quick installation, long service life.
- Versatility: suitable for almost any existing staircase.
Conclusion
Outdoor stair tread covers are an efficient, durable and cost-effective way to improve stair safety in industrial, commercial and public settings. They combine high slip resistance, robust materials and simple retrofitting into a safety measure that works for the long term.
Suitable Products
A selection from our range. Contact us for sizes, versions, prices and delivery times.

Blue GRP Stair Tread Cover with Yellow Edge
Item no. DD-RS-STUFE-BLAU-GELB
Slip-resistant GRP stair tread cover for indoor and outdoor stairs. The yellow front edge makes every step clearly visible.
- Lengths 450–1200 mm, depths 150, 230 or 300 mm
- Coarse or extra-coarse grit
- Optional printing (text, pictogram, logo)
- Minimum order quantity: 10 pieces

Black GRP Stair Tread Cover with Yellow Edge
Item no. DD-RS-STUFE-SCHWARZ-GELB
Black stair tread cover with a yellow safety edge that covers both the tread and the nosing – suitable for new and existing stairs in industrial, commercial and public areas.
- Lengths 450–1200 mm, depths 150 or 230 mm
- Coarse or extra-coarse grit
- For concrete, steel, timber and tiles
- Minimum order quantity: 10 pieces

Yellow GRP Stair Tread Cover
Item no. DD-RS-STUFE-GELB
All-over yellow stair tread cover for maximum visibility, with secure grip even in wet, icy or dirty conditions.
- Lengths 450–1200 mm, depths 150, 230 or 300 mm
- Coarse or extra-coarse grit
- For indoor and outdoor use
- Minimum order quantity: 10 pieces

Black GRP Stair Tread Cover
Item no. DD-RS-STUFE-SCHWARZ
Understated black stair tread cover with a grippy surface for outdoor stairs, access stairs and entrance steps.
- Lengths 450–1200 mm, depth 230 mm
- Coarse or extra-coarse grit
- For concrete, steel, timber and tiles
- Minimum order quantity: 10 pieces

GRP Stair Tread Cover with Hazard Marking
Item no. DD-RS-STUFE-WARN
Yellow and black striped stair tread cover that clearly marks stairs on platforms, ships and industrial sites.
- Lengths 450–1200 mm, depth 230 mm
- Extra-coarse grit
- For new and existing stairs
- Minimum order quantity: 10 pieces

Printed GRP Stair Tread Cover
Item no. DD-RS-STUFE-DRUCK
Prefabricated stair tread cover with custom printed text, pictograms or logo – can be cut to size and is corrosion-resistant.
- Printed to your specification
- Can be fitted on concrete, steel or timber
- For indoor and outdoor use
- Minimum order quantity: 10 pieces

Made-to-Measure GRP Landing Cover
Item no. DD-RS-PODEST
Slip-resistant cover for stair landings, platforms and transition areas, made to your dimensions.
- Slip-resistant R13 grit
- Made to measure
- Indoor and outdoor; will not rot or rust
- Minimum order quantity: 10 pieces

PolyGrip Premium GRP Stair Nosing
Item no. DD-GRP-5000500-BK-M
GRP angle profile with embedded aluminium oxide grit for retrofitting step edges on concrete, timber, stone or grating. Colour runs right through, so wear is barely visible.
- Through-coloured GRP, fine/medium grit
- Available cut to size

PolyGrip Premium GRP Stair Tread
Item no. DD-GRP-5000400-YE-M
Full GRP stair tread cover with integrated nosing, for concrete, timber, tiled or grating stairs. Lightweight, through-coloured and designed for indoor and outdoor use.
- Size 1000 x 350 x 50 mm, also made to measure
- Colours black, grey, yellow

GRP Anti-Slip Strips for Timber Decking (90 mm)
Item no. DD-GRP-8000807-BK
Tough GRP strips for timber decks, jetties and paths on timber or concrete. They provide grip in the wet.
- Widths 50 and 90 mm, lengths 600–2400 mm
- For timber and concrete
FAQs on Outdoor Stair Tread Covers
Which substrates can stair tread covers be fitted to?
They can be fitted to almost any solid substrate – typically concrete, stone, timber, steel and grating. Depending on the substrate, they are fixed with screws, wall plugs or adhesive.
Do I need R13 for an outdoor staircase?
Not always – the required slip resistance rating follows from your risk assessment. Where there is rain, leaves, ice or contamination, high slip resistance is often chosen. R13 versions with a test certificate are available on request.
What information do you need for a quote?
We need the step width, going depth, number of steps, substrate and photos of the stairs. For irregular steps, we manufacture to measure.
How do they differ from stair nosing profiles?
Tread covers protect the entire tread, whereas nosing profiles only secure the front edge. For badly worn steps, full coverage is usually the better choice.
Related Solutions and Sectors
- Retrofitting non-slip industrial stairs
- Stair nosing profiles for step edges
- Making stairs and paths winter-safe
- Anti-slip solutions for railway infrastructure and platform stairs
- GRP anti-slip sheets
- Anti-slip solutions for older people
Further information (German regulations): DGUV specialist area floors, ramps and stairs: publications
Act Now – Make Your Stairs Safer for Good, Especially in Winter and Wet Weather
Reduce accident risks, meet current safety requirements and improve the operational safety of your staircases.
- Free advice – choose the right covers for your stair treads
- Request a tailored solution – matched precisely to application, loading and standards
- Retrofit quickly – short installation times, minimal downtime
- Long-term benefits – a durable, low-maintenance safety solution
Make your stairs safe now – with professional outdoor stair tread covers.
