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A 56 x 56mm square edge aluminium stair nosing from the DDA range, with a textured High Grip insert. The deep 56mm riser face makes the step edge visible from below as well as from above, which is what accessible-stair guidance asks for in public and commercial buildings. The 3.5mm gauge suits vinyl, lino and lightweight carpet.
Choose Obsidian or Solar insert in any of nine aluminium finishes, in 2.44m, 2.75m or 3.22m stock lengths for cutting on site.
Approved Document K, clause 1.7a, asks for step nosings in buildings other than dwellings to contrast visually over a minimum of 55mm on both the tread and the riser. Approved Document M sets adequate visual contrast as a light reflectance value (LRV) difference of more than 30 points. With a 56mm tread and a 56mm riser, this profile has the geometry for that clause. Contrast comes from your choice of insert against the floor, and Building Control signs off the installed stair.
Grip on a stair edge is measured with a pendulum test. This textured PVC insert scored 95 dry and 60 wet at an independent laboratory, well above the 36 that UK Slip Resistance Group guidance treats as low slip potential. One full-width strip sits on the step edge, exactly where feet land as people come down the stair.
Obsidian has a light reflectance value (LRV) of 1.80 and Solar 55.10, near opposite ends of the scale. Choose the one at least 30 LRV points away from your floorcovering and the edge reads clearly from the top of the flight.
Someone climbing a stair sees the riser, not the tread. A 32mm nosing gives a thin line at the top of each riser; the 56mm face gives a solid band. For stairs that do not need it, the 56 x 32mm square profile costs less. For hard floors, see the 70 x 56mm DDA ramp back.
Choose the metal to suit the building. Mill Finish is the working option. The satins (Silver, Gold, Bronze and Black) and Dark Bronze hide scuffs on busy stairs. Bright Polished, Mirrorflect Silver and Mirrorflect Gold are for entrances and receptions where the stair is on show.
Public and commercial buildings where accessible stairs are specified: hospitals and health centres, schools and colleges, council and civic buildings, offices, retail and transport, with vinyl, safety flooring, lino or light carpet.
| Profile | Square edge, single insert channel, deep riser |
|---|---|
| Range | DDA range |
| Tread (top face) | 56mm |
| Riser (front leg) | 56mm |
| Gauge | 3.5mm |
| Carrier material | Aluminium alloy, UK manufactured |
| Insert | One High Grip textured anti-slip insert: textured PVC face on a PET base, self-adhesive, approx. 2mm thick |
| Slip resistance (insert) | Pendulum 95 dry / 60 wet (manufacturer data, independent laboratory) |
| Insert colours (LRV) | Obsidian 1.80, Solar 55.10 |
| Finishes | Mill Finish, Bright Polished, Satin Silver, Satin Gold, Satin Bronze, Dark Bronze, Satin Black, Mirrorflect Silver and Mirrorflect Gold |
| Stock lengths | 2.44m (2440mm), 2.75m (2750mm), 3.22m (3220mm) |
| Suitable floorcoverings | Vinyl, lino and lightweight carpet |
| Use | Internal stairs; insert service range -10°C to 80°C |
| Fixing | Screw-fix through the channel, then fit the insert to hide the fixings; or bond with stair nosing adhesive |
Insert colour. Hold a sample of your floor next to the colour chart: the insert should stand out, not blend in. Obsidian and Solar cost the same.
Finish. Mill Finish is the lowest price, then Bright Polished, then Satin Gold. Dark Bronze, Satin Black, Satin Silver and Satin Bronze share the middle price. Mirrorflect Silver comes next. Mirrorflect Gold costs the most. Satin finishes hide scuffs best on busy stairs.
Length. Stair widths are rarely identical, so measure each step at the nose and choose the length that divides into them with the smallest offcuts.
Cut each length to the step width with a fine-toothed blade for aluminium and de-burr the ends. The step must be clean, dry and sound. Screw-fix through the channel with fixings to suit the substrate, or bed the profile on a stair nosing adhesive. Clean and dry the channel, peel the backing from the self-adhesive insert and press it firmly into place over the fixings. Lay the floorcovering tight to the back of the profile. Clean the insert as part of the normal floor routine with a neutral detergent. Dirt packed into the texture reduces grip, and floor polish should not be applied to the insert. Abrasive pads will mark polished and coloured finishes.
It was tested with the pendulum method used across the UK flooring industry, at an independent laboratory: 95 dry, 60 wet. The UK Slip Resistance Group treats 36 or more as low slip potential. Keep the textured face clean to keep those figures.
Its geometry does. Approved Document K clause 1.7a asks for a contrasting nosing at least 55mm wide on both tread and riser, and this profile is 56mm on each. The contrast itself depends on choosing an insert at least 30 LRV points away from your floor, and Building Control signs off the finished stair.
No. The High Grip insert is rated for internal use, with a service temperature range of -10°C to 80°C. For external steps, choose a profile with an exterior-grade insert, which is listed separately.
It is a deeper extrusion: the riser face is 56mm instead of 32mm, so there is more aluminium in every length. You pay for that extra metal on the riser.
No. The insert is there to mark the edge, so it should contrast with the floor. Use Solar (LRV 55.10) on mid and dark floors and Obsidian (LRV 1.80) on pale ones, aiming for a difference of more than 30 LRV points.
One variant equals one length of nosing in your chosen finish, insert colour and stock length, with the insert supplied. Screws and adhesive are not included. We deliver to UK mainland addresses; carriage and lead time are shown at checkout. Need a quantity price for a whole building? Contact us with your step count and widths.
See our full range of anti-slip stair nosings: aluminium, rubber and PVC profiles for every type of stair.
| Service | Timeframe | Cost |
|---|---|---|
| Standard UK Delivery | 2 working days from dispatch | £9.99 |
Orders placed by 2pm (UK time) on a working day are dispatched the same day. Orders placed after 2pm or on non-working days are dispatched the next working day. Delivery takes 2 working days from dispatch. Working days are Monday to Friday, excluding bank holidays. UK delivery costs £9.99. Contact us for international enquiries.
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Overall rating: 5.0 / 5 from 16 reviews.
Works a treat for adding that much-needed safety at the library entrance. The grip is reliable even with the constant ebb and flow of people, and it stays put thanks to its solid design. Definitely going to keep this nosing in mind for similar projects in future.
Square DDA Aluminium Stair Nosing 56 x 56mm, Mor Grip Insert
At this price, youd expect a bit more sheen, but the overall finish isnt half bad when you get up close. I used this nosing for our gallerys main stairway, and the grip insert does its job even with all the foot traffic. It’s certainly spruced up the concrete steps while keeping them safe.
Square DDA Aluminium Stair Nosing 56 x 56mm, Mor Grip Insert
Had to sort out the stairway to our rooftop terrace, and this nosing really did the trick. The weight gives it a nice sturdiness, and it handles foot traffic brilliantly — no slipping even when its damp out there. Fitting that Mor Grip insert is exactly what keeps each step feeling secure, come rain or shine.
Square DDA Aluminium Stair Nosing 56 x 56mm, Mor Grip Insert
Arrived quickly and was easy to install. The grip insert really holds firm even with heavy foot traffic in our community center, making these nosings feel reliable and solid underfoot.
Square DDA Aluminium Stair Nosing 56 x 56mm, Mor Grip Insert
Wasnt sure at first about getting this for the stairs outside the facility, but Im glad I did. The grip on the coarse insert is really impressive, especially in wet weather. Its fitted perfectly and seems like it will last well through heavy use.
Square DDA Aluminium Stair Nosing 56 x 56mm, Mor Grip Insert
Beautifully practical. Installed on the stairs in our gallery, this nosing adds a touch of modern elegance while being remarkably sturdy. Even with plenty of footfall, the gripping insert holds up impressively—never mind if it’s wet or covered in dust from last weeks renovations. Although its not my favourite job to fit bits like this, I must say, the tidy finish makes all those curses worth it in the end!
Square DDA Aluminium Stair Nosing 56 x 56mm, Mor Grip Insert
Got this for sprucing up the stairs in our shopping centre, and it’s pretty much what I imagined. The nosing has a stellar grip thanks to the insert even with high foot traffic during peak hours. Also, fixed perfectly to heavy-duty concrete without any hassle—seems like itll survive the daily hustle.
Square DDA Aluminium Stair Nosing 56 x 56mm, Mor Grip Insert
Installed it to cover our living room staircase last weekend. First impression straight out of the box was quite reassuring; felt solid and well-made. The insert blended seamlessly with the carpet and has done a top job in keeping everyone from slipping, even when the kids troop through with their muddy boots. All in all, Im pretty pleased with this stair addition.
Square DDA Aluminium Stair Nosing 56 x 56mm, Mor Grip Insert
Job done straight out of the box. Unpacked this bit of kit for the park steps and couldn’t be more chuffed with the grip. Even after a bunch of kiddies traipsed over it, the nosing stayed solid thanks to that insert. Made tackling muddy days much safer!
Square DDA Aluminium Stair Nosing 56 x 56mm, Mor Grip Insert
At this price, you get a solid piece for enhancing safety and appearance. Installed it in our office staircase with the red vinyl flooring; the edge looks really neat and professional. The best part is how the insert grips tight even when it’s damp, which is crucial in our busy environment.
Square DDA Aluminium Stair Nosing 56 x 56mm, Mor Grip Insert
Solid Square DDA Aluminium Stair Nosing 56 x 56mm, Mor Grip Insert for the price. Meets my expectations and looks good.
Square DDA Aluminium Stair Nosing 56 x 56mm, Mor Grip Insert
Came quickly and in solid packaging. Up close, the stair edge looks sleek with its obsidian shade really popping against all the marble. The grip on this strip is top-notch—it hasnt budged an inch despite all the foot traffic in our hotel entrance! That clever insert stops things getting slippery even when its wet.
Square DDA Aluminium Stair Nosing 56 x 56mm, Mor Grip Insert
Got this for the stairs at our office where it needed to handle a lot of foot traffic. It fits snugly with the glossy floor, and the insert holds firm even when things get a bit wet. Adds a sleek touch to the steps without any slips - quite chuffed with it in action!
Square DDA Aluminium Stair Nosing 56 x 56mm, Mor Grip Insert
Absolutely brilliant! Installing these on the gallery staircase was a breeze—the insert provides outstanding grip whether during a busy event or just under daily foot traffic. They snugly fit over the carpet without any hassle, which is exactly what I hoped for when setting up displays.
Square DDA Aluminium Stair Nosing 56 x 56mm, Mor Grip Insert
Solid Square DDA Aluminium Stair Nosing 56 x 56mm, Mor Grip Insert for the price. Meets my expectations and looks good.
Square DDA Aluminium Stair Nosing 56 x 56mm, Mor Grip Insert
Wasnt sure about spending on this nosing initially, but the finish up close is impressively sleek. The insert maintains its grip even when damp, which is reassuring considering how busy our entrance gets. After a few months in place at the museum entrance where theyre trampled by countless visitors each day, these strips still hold strong and look sharp!
Square DDA Aluminium Stair Nosing 56 x 56mm, Mor Grip Insert
