Anti-Slip Ladder Rung Covers

Ladders become very slippery when the rungs, your shoes or your hands come into contact with water, frost, snow, grease, oil or other slippery substances. Reduce the risk of ladder accidents with our anti-slip ladder rung covers in GRP (R13), also known as rung treads or rung caps – easy to retrofit!

Suitable protective equipment: Ladder safety shoes with ladder grip zone (LG) – secure footing on rungs and scaffolding.

Ladder rung covers offer several safety and comfort benefits, particularly on fixed vertical ladders such as those on telecom masts. Here are the key advantages:

Anti-slip ladder rung covers – simply retrofit non-slip rungs!

✅ Slip protection – Our ladder rung covers are made from very solid, highly slip-resistant GRP (R13) that stops shoes and hands from slipping. The ideal solution for maximum sure-footedness.
✅ Injury prevention – Our covers take the danger out of sharp-edged rungs.
✅ Better visibility – Bright yellow makes the rungs easier to see and reduces the risk of accidents, even in poor visibility.

Working on fixed ladders carries a risk that increases with height – a fall can cause serious or even fatal injuries. It is therefore vital to make ladders safe, and our anti-slip covers for ladders are designed to prevent slips and falls.

The anti-slip rung treads are made from high-quality glass-reinforced plastic (GRP) with embedded aluminium oxide grit. This makes them virtually indestructible and highly slip-resistant (R13).

Important legal notice: The information given here on standards, dimensions, retrofit options and safety requirements is provided to the best of our knowledge but without guarantee of completeness or legal validity. Actual requirements may vary depending on the application, the year the ladder was built, applicable standards, the operator’s risk assessment and the requirements of the authorities. The operator or employer is solely responsible for safe use, correct installation and regular inspection. If in doubt, we recommend consulting the applicable regulations and standards or a health and safety professional and, where relevant, the competent enforcing authority or insurer.

Applications for anti-slip ladder rung covers

• Chemical and petrochemical plants and process facilities: safe climbing on ladders exposed to oil, acids or solvents.
• Food industry: hygienic anti-slip solution for wet areas and cleaning zones.
• Local authority facilities: swimming pools, pumping stations and maintenance shafts.
• Water supply & sewage treatment works: corrosion-free retrofit where there is moisture and constant wetness around tanks.
• Energy & wind power: anti-slip rungs on masts, towers and maintenance ladders for power supply installations and transmission lines.
• Construction & scaffolding contractors: temporary and permanent safety solution for access ladders.
• Shipbuilding, ports and offshore installations: saltwater-resistant anti-slip covers for access ladders and deck ladders in marine environments.
• Access ladders in warehouses, silos, tanks & vessels: non-slip footholds where there is dust, moisture or gas.
• Mechanical and plant engineering: retrofitting maintenance ladders and inspection access points.
• Agriculture & farm machinery: ladders on silos, livestock buildings or conveyor systems exposed to mud or moisture.

Available sizes of ladder rung covers

Only ladder rungs with a diameter or width of at least 20 mm BEFORE retrofitting may be fitted with the GRP ladder rung covers!

Shape: square

Channel width x length in mm

• 20 mm x 300 mm, 20 mm x 400 mm, 20 mm x 500 mm, 20 mm x custom length
• 25 mm x 300 mm, 25 mm x 400 mm, 25 mm x 500 mm, 25 mm x custom length
• 30 mm x 300 mm, 30 mm x 400 mm, 30 mm x 500 mm, 30 mm x custom length
• 35 mm x 300 mm, 35 mm x 400 mm, 35 mm x 500 mm, 35 mm x custom length
• 38 mm x 300 mm, 38 mm x 400 mm, 38 mm x 500 mm, 38 mm x custom length

Shape: round

Diameter x length in mm

• Ø20 mm x 300 mm, Ø20 mm x 400 mm, Ø20 mm x 500 mm, Ø20 mm x custom length
• Ø25 mm x 300 mm, Ø25 mm x 400 mm, Ø25 mm x 500 mm, Ø25 mm x custom length
• Ø30 mm x 300 mm, Ø30 mm x 400 mm, Ø30 mm x 500 mm, Ø30 mm x custom length

Since the 2019 revision of the German standard DIN 18799 Part 1, round rungs on fixed ladders are classed as a safety issue. The square ladder rung covers can be fitted not only to square rungs but also to round rungs on fixed ladders. In doing so, they create a slip-resistant, rectangular GRP rung profile (slip resistance R13) in line with DIN 18799-1.

Installation instructions for anti-slip ladder rung treads

Our highly slip-resistant rung covers in solid GRP fit directly over existing ladder rungs (round or rectangular) and can cover all standard rungs (round or square). Using additional adhesive in the cavities, a square ladder rung cover can also be retrofitted to a round rung (with a sufficiently large tread width of at least 20 mm diameter) – see the example below:

“Secure footing

Fixed ladders must provide secure footing. In addition to the dimensions, this includes adequate slip resistance of the rung tread surface, the design of which depends on the operating conditions.

The tread depth of the rung must be at least 20 mm.”

DGUV Information 208-032: selection and use of fixed ladders (German)

– Tread width of square rungs: min. 20 mm

– Round rungs should be avoided, however, as they offer only low slip resistance (rung diameter min. 25 mm)

BG RCI: building materials industry handbook, A 3.4 fixed ladders (German)

Our non-slip rung covers are typically used in marine, offshore, industrial and commercial environments where ladders provide access to elevated areas. The benefits include:

1. Reduced slip and fall hazards: the anti-slip surface provides excellent grip – even when the ladder is wet or oily – so workers can climb up and down safely.
2. Improved ladder safety: installing our ladder rung covers significantly reduces the risk of slips and falls.
3. Compliance with safety standards: installing our covers can help ensure that safety standards and regulations are met – reducing the risk of penalties or legal liability for non-compliance. See for example VBG: fixed ladders and step-iron ladders (German, with further links)
4. Fewer workplace accidents and lower injury costs: by reducing the risk of slips and falls, our ladder rung covers cut the costs associated with accidents.

Covers also protect the ladder rungs from wear, extend the life of the ladder and reduce maintenance costs. 

Another way to improve footing on ladders even further is our special ladder safety shoes with a “ladder grip” integrated into the sole.

Invest in the safety of your ladders with our anti-slip ladder rung covers and ensure safe climbing up and down on every rung.

FAQ – ladder rung covers / rung treads / anti-slip rung caps for retrofitting

Question 1: What are ladder rung covers and what are they used for?
Ladder rung covers – also called rung treads or anti-slip rung caps – are slip-resistant overlays that can be retrofitted to existing ladder rungs (usually steel). They make ladders safer underfoot straight away, improve grip in wet, oily or dirty conditions or in winter frost, and reduce the risk of slips and falls. They are used in almost every industrial and maintenance setting.

Question 2: What are the benefits of ladder rung covers?
Ladder rung covers improve footing and slip resistance (R13), create a grippy anti-slip surface and, thanks to their yellow colour, make the rungs more visible. They also protect the original rung, extend its life and help meet workplace safety standards. The likelihood of accidents falls significantly, especially in critical environments with moisture, chemicals or changing outdoor temperatures.

Question 3: What materials are these anti-slip covers made from?
Our high-quality ladder rung covers are made from glass-reinforced plastic (GRP) with integrated slip-resistant hard grit such as silicon carbide or aluminium oxide. This combination of materials ensures a permanently sure-footed, abrasion-resistant and corrosion-resistant surface – ideal for industry, offshore and aggressive environments.

Question 4: Which rung shapes do the covers fit?
The covers can be used on rectangular and square rungs and – with filler – on round rungs too. For optimum footing, a minimum tread width of approx. 20 mm is recommended. Many models are universally retrofittable and are suitable for fixed vertical ladders as well as portable ladders.

Question 5: How are ladder rung covers installed?
Installing anti-slip ladder rungs is quick and easy:

• Clean the rung
• Fit the rung cover over the rung or wrap it around
• If necessary, fill cavities with adhesive or mounting paste
• Check the fit
  Retrofitting can usually be done without special tools and makes the ladder sure-footed once the adhesive has cured.

Question 6: Which standards and safety requirements apply?
The key requirements are high slip resistance (e.g. surfaces rated R13), robust material quality and compliance with general safety regulations for fixed ladders, maintenance access and technical installations. Ladder rung covers are an effective way to meet safety standards and support your risk assessment.

Question 7: In which sectors are ladder rung covers used?
Applications include:

• Chemicals and petrochemicals
• Food and beverage industry
• Water and wastewater
• Energy and wind power
• Masts (e.g. power lines, wind turbines, mobile networks)
• Construction, trades, scaffolding
• Offshore, marine and port facilities
• Industrial plants, servicing and maintenance
• Agriculture, conveyor and silo technology
• Local authority facilities and technical services

These covers are used wherever ladders need to be made safer underfoot.

Question 8: Can existing ladders be retrofitted?
Yes. Ladder rung covers are a quick and cost-effective retrofit solution. They can be fitted to almost any intact rung and turn existing ladders into a much more sure-footed and safe solution.

Question 9: What colours are available and why does it matter?
We supply the retrofit rung covers in highly visible yellow, which makes each rung easier to see and reduces the risk of accidents, even in poor visibility.

Question 10: How long do GRP ladder rung covers last?
GRP-based models are extremely durable, UV-resistant, chemical-resistant and virtually maintenance-free. Even with intensive or daily use, the anti-slip properties are retained for many years.

Question 11: Which criteria matter when choosing?
For maximum footing, consider the following:

• Slip resistance of the surface (very coarse anti-slip grit)
• Material quality (GRP, slip-resistant particles)
• Fit for rung shape and width
• Visibility and warning effect
• Resistance to moisture, chemicals and UV
• Ease of installation and freedom from maintenance
• Durability

Question 12: What needs to be considered during planning and installation?
The rungs must be intact, the cover must match the rung shape, and the mounting surface should be clean and dry. After installation, a firm fit is essential to ensure lasting, sure-footed use. In safety-critical areas, the installation should be documented and inspected regularly. The manufacturer’s instructions must always be followed!

Question 13: Is it permitted to retrofit ladders?

When retrofitting existing ladders (portable ladders, fixed ladders, maintenance ladders in industrial plants), special rules apply that differ somewhat from those for new ladders or re-certification.
Here is a practical summary based on the German standards of how retrofits are assessed:

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✅ 1. Principle: retrofitting is permitted – but only if it improves safety

Retrofits such as rung treads, anti-slip profiles or rung covers are permissible because they increase safety and significantly reduce the risk of slipping.

For operators, what counts is the risk assessment – not necessarily full re-certification of the ladder.

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✅ 2. Minimum dimensions apply BEFORE retrofitting

For existing ladders, especially older industrial ladders, the following is decisive:

◾ The tread or diameter of the rung must be at least approx. 20 mm BEFORE retrofitting

This is the minimum size used in many technical rules for a safe tread width (rectangular) or equivalent area.

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✅ 3. Round rungs on existing fixed ladders

Standards (e.g. DIN 18799-1) no longer permit round rungs on new fixed ladders.

However:

The square ladder rung covers can be fitted not only to square rungs but also to round rungs on fixed ladders. In doing so, they create a slip-resistant, rectangular GRP rung profile (slip resistance R13) in line with DIN 18799-1.

✔ … provided the operator shows in the risk assessment

that the retrofit ensures secure footing (e.g. by means of covers).

➡️ In practice:
An anti-slip rung cover is accepted as a recognised safety measure.

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✅ 4. What needs to be considered when retrofitting?

◾ The rung must be structurally sound and have a minimum diameter or width of 20 mm BEFORE conversion

Dents, cracks or corrosion → have them professionally repaired or replace the rung first.

◾ The cover must have adequate load-bearing capacity

GRP rung covers generally meet this requirement.

◾ Installation must be full-surface and in accordance with the manufacturer’s instructions

e.g. using adhesive or mounting compound. We can supply these on request.

◾ Documentation recommended

A brief note is sufficient:
e.g. “Existing ladder – retrofit to improve slip resistance – risk assessment updated.”

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✅ 5. Does an existing ladder need to be re-certified after retrofitting?

No.
A retrofit is a maintenance measure; whether it is permissible in an individual case must be checked beforehand.

Whether approval from the ladder manufacturer, a new inspection or further measures are required for the retrofit depends on the ladder type, rung geometry, fixing method and the relevant standards. Clarify this in advance with a competent person as part of your risk assessment and follow the manufacturer’s instructions.

In addition:

HOWEVER:
The employer remains responsible for the annual ladder inspection (required in Germany under DGUV rules) and for the safety of the ladder.

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✅ 6. Typical retrofit situations

✔ old industrial fixed ladders with round steel rungs
✔ access to silos, shafts, pumping stations
✔ wind power and energy installations
✔ ladders in chemical plants, water utilities and food businesses
✔ outdoor stairs/fixed ladders that become slippery in winter

In all these cases, rung covers are accepted as a safe improvement.

Related solutions and sectors

• Securing fixed ladders in wind turbines
• Ladders at sewage treatment works and waterworks
• Anti-slip solutions for chemical plants
• Slip protection for offshore and shipbuilding
• Custom-made rung mouldings
• Truck roof de-icing system with non-slip working platform

Further reading (in German): DGUV Information 208-016: the use of ladders and steps (PDF)

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⭐ Conclusion:

Retrofitting existing ladders with anti-slip ladder rung covers is permitted and worthwhile (provided the tread is ≥ 20 mm BEFORE installation), as it significantly improves footing on the ladder.

Please observe the “important notice” in orange text above and the manufacturer’s instructions!