Key Takeaways -

• Regular cleaning and removing algae help stop decking from becoming slippery.
• Anti-slip coatings, stains, and strips improve traction and safety.
• Proper drainage and deck positioning prevent water buildup and mould growth.
• Covered decks and non-slip mats provide extra protection in wet conditions.

A slippery deck can be dangerous, especially in wet or icy weather. However, with the right steps, you can keep it safe and easy to walk on. All decks can become slippery, but regular cleaning and simple fixes can help prevent accidents.

This article will share six easy ways to stop your decking from being slippery. You’ll learn how to remove common causes like moss and algae, improve traction with anti-slip solutions, and make your deck safer all year round.

Keep reading to find out how to keep your decking safe and slip-free in any weather. No matter what type of deck you have, these simple tips will help you enjoy it with confidence.

#1 Keep Your Deck Clean and Clear

Regular Sweeping & Brushing

Sweeping your deck every two weeks helps prevent the buildup of leaves, dirt, and other debris. Organic material traps moisture, leading to algae and mould growth, making the deck slippery.

Use a stiff-bristle brush for the best results, as it removes dirt effectively without damaging the decking surface.

Removing Algae and Moss

Algae and moss thrive in damp conditions and can quickly make your decking unsafe. To prevent this, use a moss and algae killer designed for outdoor surfaces. For extra protection, consider grooved decking boards, which allow water to drain more easily and reduce the chances of algae buildup.

Thorough Cleaning with Proper Techniques

A deep clean at least once or twice a year helps remove stubborn stains, mould, and slippery buildup. Use a pressure washer on a low setting or scrub with a mixture of water and mild detergent. Always brush away loose debris before cleaning to make the process more effective.

Cleaning Between Decking Boards

Gaps between decking boards can collect dirt, leaves, and water, leading to mould growth and poor drainage. Use a trowel or scraper to clear out trapped debris, especially after heavy rainfall. Keeping these spaces clean prevents water from pooling and helps maintain a slip-free surface.

#2 Use Anti-Slip Coatings and Treatments

Anti-Slip Decking Oil

Anti-slip decking oil contains grip-enhancing particles that create a rougher surface, reducing slipperiness. Unlike non-slip paints and varnishes, it won’t crack or peel over time. It’s easy to reapply as needed, making it a reliable long-term solution.

Regular application ensures your deck stays safe while maintaining its natural look.

Anti-Slip Decking Stains and Sealants

Decking stains and sealants protect wood from moisture and decay, which can lead to slippery surfaces. Choose a textured stain for added grip or a clear sealant to maintain the deck’s natural appearance.

These treatments help prevent water absorption, reducing the risk of mould and algae growth.

Apply Specialised Anti-Slip Coatings

For an extra layer of protection, use anti-slip decking paint containing traction-enhancing additives. These coatings create a textured surface that reduces slipperiness when wet. Before applying, ensure the deck is clean and dry to maximise adhesion and durability.

This slippery decking solution is ideal for high-traffic areas.

Choosing the Right Decking Material

Some materials naturally provide better traction. Cedar and Redwood are less slippery than other woods, while composite decking often includes built-in slip resistance. Purchasing grooved decking boards can improve drainage and reduce slipperiness.

When installing, ensure the grooves run perpendicular to foot traffic for better grip and stability.

#3 Add Anti-Slip Features

Anti-Slip Decking Strips

Anti-slip decking strips (or non-slip decking strips) are gritted strips that screw directly into decking boards, creating a permanent, weather-resistant solution. They provide excellent grip, even in wet conditions, and are ideal for high-risk areas like walkways and stairs.

Available in various colours and materials, they blend well with different deck styles while improving safety.

Anti-Slip Tape

Anti-slip tape is an easy-to-apply, budget-friendly solution for slippery decks. It’s perfect for high-traffic areas and stairs, providing extra grip where needed. For best results, ensure the deck surface is clean and dry before applying, as dirt and moisture can reduce adhesion.

While not a long-term fix, it’s a quick and effective way to improve traction.

Rubber Mats for Temporary Solutions

Rubber mats provide instant grip, making them especially useful during winter months. They are a great option for walkways and entrances, where slips are most likely to happen.

Since they are removable, they can be stored away during dry seasons, offering a flexible, temporary solution without altering your decking.

Non-Slip Rugs for Aesthetic and Safety

Outdoor rugs with slip-resistant backing offer a stylish and practical way to improve traction (1). They help reduce slipperiness while adding warmth and colour to your decking.

Although they are a temporary solution, they are particularly effective in high-risk areas, such as seating spaces and entrances, where extra grip is needed.

#4 Prevent Ice and Snow Hazards

Safe Ice Removal Techniques

Avoid using metal tools to scrape ice, as they can scratch and damage timber. Instead, use a plastic shovel or a soft-bristled broom to remove snow and ice gently. It’s best to clear snow early, before it hardens into ice, making removal more difficult.

Regular sweeping helps prevent buildup and keeps your deck safer during wet or icy conditions.

Alternatives to Rock Salt

Traditional rock salt absorbs moisture, weakening wood fibres over time. Instead, use grit sand to add traction without causing damage. For a safer de-icing option, consider calcium magnesium acetate, which effectively melts ice without harming your decking.

These alternatives help maintain your deck’s durability while reducing slip risks in icy conditions.

#5 Improve Drainage and Deck Positioning

Ensuring Proper Water Runoff

Standing water increases slipperiness and can damage your decking over time. To prevent this, ensure your deck is slightly angled to allow water to drain away properly. If your deck is completely flat, water may pool, creating a slipping hazard.

Checking for proper drainage regularly will help maintain a safe and long-lasting surface.

Adding Drainage Features

Installing drainage channels or using perforated decking boards helps direct water away, preventing puddles from forming. Regularly clearing gaps between decking boards also improves drainage by allowing water to escape instead of sitting on the surface.

Keeping these areas free of dirt and debris will help maintain a slip-free deck all year round.

#6 Install a Covered Deck or Pergola

Reduce Direct Exposure to Rain and Moisture

Constant exposure to rain makes decking slippery and encourages algae growth. Installing a pergola, gazebo, or retractable cover helps keep the deck dry, making it safer to walk on.

A cover also reduces leaf litter accumulation in autumn, preventing organic debris from trapping moisture and creating a slipping hazard.

Enhancing Aesthetics While Improving Safety

A covered deck not only looks great but also keeps the surface drier, reducing the risk of moss and algae buildup. It adds a practical and stylish touch to your outdoor space, allowing you to enjoy your deck comfortably in different weather conditions while maintaining a safe, slip-free surface.

Frequently Asked Questions

Is Timber Decking More Slippery Than Other Decking Materials?

Timber decking can become more slippery than other materials, especially when wet or covered in algae. Hardwoods like teak and ipe offer better natural resistance to moisture, while softwoods like pine can become very slick if not properly treated.

Composite decking often includes built-in slip resistance, making it a safer option in damp conditions. Regular maintenance and anti-slip treatments can help reduce slipperiness on timber decks.

Which Deck Material Is Not Recommended for a Pressure Wash?

Softwood decking, such as pine or cedar, is not ideal for pressure washing because the force can damage the wood fibres. Composite decking should also be cleaned with care, as high-pressure water can strip protective coatings and expose the material to moisture damage.

Instead, use a low-pressure setting or a gentle cleaning solution to remove dirt and algae. Always follow the manufacturer’s guidelines to prevent long-term damage.

Does the Direction of Sunlight Affect How Slippery My Deck Gets?

Yes, decks in shaded areas stay damp longer, which encourages algae and mould growth, making them more slippery. Sunlight helps dry out moisture quickly, reducing the risk of buildup that causes a slick surface. If possible, position your deck in an area that receives sunlight for most of the day.

If shade is unavoidable, regular cleaning and anti-slip treatments are essential.

Are There Specific Shoes That Can Reduce the Risk of Slipping on a Deck?

Yes, wearing shoes with rubber soles and deep treads providesa better grip on slippery decking. Avoid smooth-soled footwear, as they offer little traction, especially on wet surfaces. In winter or after rain, consider non-slip shoes or boots designed for outdoor use.

Proper footwear, combined with a well-maintained deck, helps prevent slips and falls.

Conclusion

Slippery decking can be a serious hazard, but with the right maintenance and safety measures, you can stop decking from becoming dangerous. Regular cleaning, anti-slip treatments, proper drainage, and protective coverings all help keep your deck safe year-round.

Whether you choose anti-slip coatings, decking strips, or a covered pergola, small changes can make a big difference. By following these simple steps, you can enjoy a sturdy, slip-free deck in any weather.

Sources -

1. https://www.homesandgardens.com/gardens/slippery-deck-solutions