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This square-edged nosing from the DDA range is made for stairs where the step edge has to be seen as well as protected. Its 56mm tread leg and matching 56mm riser leg give a clear band of contrast on both the top and the front of every step. That is the detail access consultants and building control officers look for on public and commercial stairs.
It is supplied in 2.44m (2440mm) lengths, takes a single slip-resistant PVC insert, and suits vinyl, lino and lightweight carpet.
Guidance for accessible stairs, including Approved Documents K and M and BS 8300, asks for a permanently contrasting strip on the tread and the riser, so people with impaired vision can pick out each step edge going up or coming down. With 56mm on each leg, this profile is sized for that band. You choose the finish and insert colour to contrast with your floor.
The gauge is the depth your floorcovering meets behind the nosing. At 3.5mm it matches sheet vinyl, lino and lightweight carpet, so the covering finishes flush with the back of the profile and nothing catches underfoot.
Grip comes from a PVC insert held in a single channel, so worn inserts can be replaced without lifting the aluminium. The profile also accepts exterior-grade inserts for covered entrance and external steps.
Offices, schools, universities, hospitals and surgeries, libraries and civic buildings, shops, hotels and the common parts of residential blocks. It suits any stair covered in vinyl, lino or lightweight carpet where step-edge visibility will be inspected, and covered external steps when fitted with exterior inserts.
| Profile | Square edge, single insert channel |
|---|---|
| Range | DDA range |
| Tread (top leg) | 56mm |
| Riser (front leg) | 56mm |
| Gauge | 3.5mm |
| Stock length | 2.44m (2440mm) |
| Profile material | Aluminium |
| Insert material | PVC (polyvinyl chloride), slip-resistant |
| Number of inserts | 1 |
| Suitable floorcoverings | Vinyl, lino and lightweight carpet |
| Exterior inserts | Accepted (covered outdoor steps) |
| Application | DDA range, sized for tread and riser contrast bands |
| Finishes | Mill Finish, Bright Polished, Satin Gold, Dark Bronze, Satin Black and Mirrorflect Gold |
| Insert colours | Apple Green, Aura, Beige, Brown, Dark Blue, Dark Green, Dark Grey, Hazard, Mid Grey, Premium Black, Red, Sage Green, Sahara, White and Yellow |
Finish. Mill Finish is plain, untreated aluminium and the most economical choice for back-of-house and service stairs. Bright Polished gives a reflective silver edge. Satin Gold, Dark Bronze and Satin Black are colour finishes that suit wood, stone-effect and dark contemporary floors. Mirrorflect Gold is a mirror-bright gold for feature and front-of-house stairs, and it costs the most.
Insert colour. Choose it against the floorcovering. For a visible step edge, pick an insert that is clearly lighter or darker than the floor. For a low-key look, match the tone of the floor. Hazard is a black-and-yellow warning insert for plant rooms, loading areas and any step that needs a stronger warning.
Length. The 2.44m length is one of three stocked lengths (2.75m and 3.22m are the others). Pick the one that cuts into your step widths with the least waste.
Measure each step and cut the profile with a fine-toothed metal saw or a mitre saw fitted with a non-ferrous blade, then de-burr the ends. Dry-fit the nosing tight to the step edge with the riser leg down the face. Fix it by screwing through the tread leg with fixings suited to the substrate (plugs into concrete, wood screws into timber), bedding it on a suitable adhesive for a solid, rattle-free fit. Lay the floorcovering up to the back of the profile, then press the insert fully into its channel. Clean with a damp cloth and neutral detergent. Avoid abrasive pads on polished and coloured finishes.
It is sized for the contrasting step-edge band that accessibility guidance asks for, on both tread and riser. Compliance also depends on the insert or finish contrasting with the floor, usually judged by a difference in light reflectance value (LRV), so choose colours with that in mind and confirm with your building control officer or access consultant.
Pick against the floor, not in isolation. Light inserts such as White, Yellow or Beige stand out on dark floors. Premium Black, Dark Grey or Dark Blue suit light floors. Hazard gives a black-and-yellow warning edge for plant rooms, loading areas and external steps.
Yes, on covered steps, when fitted with an exterior-grade insert, which this profile accepts. The PVC inserts listed here are for internal use.
Divide 2440mm by your step width, allowing a few millimetres per cut. It is also stocked in 2.75m and 3.22m lengths if they cut your stair widths with less waste.
Each variant is one 2.44m length in your chosen finish and insert colour, with the insert supplied. Order one length per group of steps it will cut into, and allow a spare where stair widths vary. Screws and adhesive are not included. We deliver to UK mainland addresses, with lead time and carriage shown at checkout. For long runs or mixed lengths, contact us and we can plan the cutting with you.
View our complete range of stair nosing profiles — aluminium, rubber and PVC options for every application.
| 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 5 reviews.
Came securely packaged and looked quite sturdy right out of the box. Installed it in a bustling railway station, the grip has held up remarkably well even during some heavy rain, preventing any unexpected slips. Absolutely brilliant value given how busy that area is!
Square Aluminium Stair Nosing 2.44m, 56mm Tread x 56mm Riser, DDA Single Insert
Wasnt sure at first how quickly this would arrive, but it was delivered in under two days. The packaging was robust enough to ensure everything stayed intact despite a sizeable journey. Installed the stair nosing along our hotel stairs—fits perfectly with the décor and makes things safer too.
Square Aluminium Stair Nosing 2.44m, 56mm Tread x 56mm Riser, DDA Single Insert
Got this for the stairs in our office building, and it really elevates the look of the whole place. The contrast it provides is not only functional for visibility but smartens up the appearance significantly. Such a great value investment given how sleek stair nosing can transform the visual appeal as well as ensuring safety.
Square Aluminium Stair Nosing 2.44m, 56mm Tread x 56mm Riser, DDA Single Insert
Fitted it along the busy hospital staircase and Ive got to say, after six months of countless feet marching over it daily, this edging still looks remarkably intact compared to what I expected. The contrast on each step edge has stayed visible even under heavy wear, which was a major concern considering the foot traffic here. It’s kept its purpose brilliantly without showing much sign of fatigue—impressive durability for such a modest addition.
Square Aluminium Stair Nosing 2.44m, 56mm Tread x 56mm Riser, DDA Single Insert
Surprisingly sturdy for something so slim. Cutting the stair nosing to fit my small university lecture hall project was quite straightforward, though it did take a bit of patience. The clear contrasting edge is ideal—students havent missed a step since!
Square Aluminium Stair Nosing 2.44m, 56mm Tread x 56mm Riser, DDA Single Insert
