Anti-Slip Timber Decking with EPDM Rubber Strips
Timber decking is lovely to look at, but wet boards can be slippery, especially on a slope, a set of steps or by a pool. Anti-slip decking tackles the problem in the board itself. This guide explains how EPDM rubber strips work, where they earn their place, and how they compare with other ways of adding grip.
What are EPDM rubber strips?
EPDM is a type of synthetic rubber widely used outdoors, for example in roofing membranes and seals, because it copes well with weather. In anti-slip decking, strips of it are set into the face of the board. Rubber grips better than wet timber, so the strip does the work when the surface is damp.
Our SertiWOOD Anti-Slip decking is 28 x 119mm and comes in green and black, or red and black. The boards are pressure treated to BS 8417. The product pages describe the strips as soft and not gritty underfoot, giving a comfortable, padded feel while adding grip.
Where anti-slip decking matters
Any deck can get wet, but some places deserve extra care. Our product pages say the boards suit steps, ramps, balconies, pool surrounds, wet areas and busy paths. In practice, think about:
- Slopes and ramps. Even a gentle gradient reduces the margin for error when boards are wet or covered in leaves.
- Steps. Feet land on a small area, often while someone is carrying something.
- Pool surrounds and hot tub areas. Bare feet and constant splashing are a tough combination for plain timber.
- Care and commercial settings. Where many different people use a deck, such as care homes, cafes or shared outdoor areas, a consistent grip matters more. We do not claim that the boards meet a particular slip-resistance rating, so ask us if you need test evidence for a specific project.
Slips and trips are a recognised workplace hazard, so surfaces used by staff or the public deserve proper thought.
Soft, not gritty
Many anti-slip surfaces rely on grit, such as aggregate in a coating or an abrasive strip. Grit grips well but can feel rough on bare feet and knees, and can wear footwear and pets’ paws. Rubber is the opposite: it gives, so it feels more comfortable to walk or kneel on. That is why the soft, padded feel is a headline feature of these boards.
How it compares with grooved and gritty options
This is a general comparison, not a test result.
| Option | How it grips | Things to consider |
|---|---|---|
| Grooved timber boards | Channels run across the face and give some grip and drainage | Standard on many green treated boards. Grooves can hold debris, so they need brushing out |
| Gritty strips or coatings | Abrasive particles bite into the sole | Effective, but can feel rough underfoot |
| EPDM rubber strips | Soft rubber insert grips when wet | Padded feel; strips are visible against the timber |
Grooved boards are a sensible choice for a general garden deck. If you have a slope, steps or a wet area, rubber strips add a further layer of grip.
Maintenance
Treat the deck like any timber deck and keep it clean. Sweep leaves and debris regularly, as organic matter on any surface can become slippery. Wash the boards with a stiff brush and clean water when they get dirty or green. Avoid aggressive tools that could damage the rubber, and take extra care in shaded spots that stay damp. Ask us if you need cleaning advice for a specific product.
Our anti-slip decking kits
If you want a complete deck, our decking kits include the SertiWOOD Anti-Slip boards, C24 treated joists at 400mm centres (rather than the 600mm often used), stainless decking screws and frame fixings, all cut to length. There are three sizes, each in either colour. Prices include VAT and UK delivery.
| Kit size | Area | Price |
|---|---|---|
| 2.4 x 3.6 m | 8.64 m² | £1,514.99 |
| 3.6 x 3.6 m | 12.96 m² | £2,154.99 |
| 3.6 x 4.8 m | 17.28 m² | £2,859.99 |
Kits do not include handrails, balustrades, fascia or edging trim, joist supports or weed control membrane. They are designed for a ground-level or low deck on firm, level, well-drained ground. A deck raised more than 30cm, or attached to a building, may need planning permission or building regulations approval, so check with your local authority. Anti-slip boards come in 3.6m lengths, so longer decks are butt-jointed over a doubled joist.
Anti-slip boards cost more than standard green treated boards. For the wider cost picture, see is timber decking expensive?.
Trends to watch
- Safety in public and shared spaces. Grip is likely to stay a priority for anyone responsible for a surface used by staff or the public.
- Accessibility. Where a deck forms part of an access route, such as a ramp or level approach, grip underfoot is worth considering, and building regulations guidance on access may apply. Check with building control.
- Wet-area use. Decks near hot tubs or pools are a common reason people ask about grip.
These are general observations, not forecasts.
Frequently asked questions
What is EPDM in decking?
EPDM is a synthetic rubber. In our anti-slip boards, strips of it are set into the board to add grip, and the product pages describe them as soft and not gritty underfoot.
Is anti-slip decking suitable for pool surrounds and steps?
Our product pages say the boards suit steps, ramps, balconies, pool surrounds, wet areas and busy paths.
What sizes and colours are available?
Boards are 28 x 119mm in green and black or red and black. Kits come in 2.4 x 3.6 m, 3.6 x 3.6 m and 3.6 x 4.8 m.
Can I see the boards first?
Yes. Free samples are available. See free timber samples.
Need help choosing?
Call 0161 504 0011, request a quote, or book a site meeting.
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