Aluminium Stair Nosing 70x56mm Square Edge, DDA 56mm Riser

70mm tread × 56mm riserSquare EdgeAluminiumAnti-Slip Insert


Price
Sale price £88.90
Inc. VAT

1 × Mill Finish, Premium Black, 2.44 Metres (2440mm) at £88.90 (Inc. VAT) each
Goods total £88.90 (Inc. VAT) inc. VAT, before delivery

UK delivery £9.99 per order · 2 working days from dispatch. Order by 2pm (UK time) on a working day for same-day dispatch. Delivery info

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Description

A 56mm-riser square-edge stair nosing for public and commercial stairs

If you are edging a stair that has to satisfy an access audit — an office core, a school, a clinic, a shop, a block of flats — the dimension that matters is the one most nosings lack: the depth of the face on the riser. This profile drops a full 56mm down the front of the step from a 70mm tread plate, at a 3.5mm gauge. The manufacturer lists it in its DDA range and prints a Building Regulations compliance mark on its own product drawing. It fits square-nosed steps, ramps down at the back under vinyl, LVT, wood, lino or lightweight carpet, and its single channel holds one wide replaceable anti-slip PVC insert in 19 colours. The dark and mirror finishes are on a companion listing.

Why it works

The riser face is where most nosings fall short

Approved Document K asks, for buildings other than dwellings, for a visually contrasting material at least 55mm wide on both the tread and the riser (clause 1.7a). A standard 32mm profile cannot meet the riser half of that on its own. This face is 56mm, so a descending user sees a continuous band of metal down the top of every riser as well as the insert on the going, and the 70mm tread plate clears the tread figure when its colour contrasts with the floor.

Contrast you can design, not hope for

Approved Document M sets the contrast test numerically: a difference of more than 30 points in light reflectance value between adjacent surfaces, or 20 points where lighting exceeds 200 lux. The manufacturer publishes an LRV for every insert colour, from Premium Black at 4.48 to White at 73.69, so you can pick an insert that is provably 30 points from the floor covering instead of guessing that a grey will contrast with a grey.

Slip performance, stated by the manufacturer

The manufacturer's safety documentation pack reports a BS 7976-2 pendulum test (Floor Safe Ltd, report FS10174, linished stair tread sample): 70 PTV dry, 58 PTV wet, both low slip potential. We carry those figures as the manufacturer states them; we have not tested the profile ourselves.

✓ Building Regulations — what this profile gives you

The manufacturer marks this profile Building Regulations compliant on its own drawing and lists it in its DDA range. It rests on a 56mm riser face and a 70mm tread plate, both above the 55mm minimum in Approved Document K 1.7a, plus a published LRV for every insert. Compliance belongs to the installed stair: the insert and finish still have to contrast with your floor, and Building Control signs it off.

Where it's used

Office and education stair cores, healthcare circulation, retail, leisure, apartment blocks and student accommodation: any public stair with an access statement to answer. It suits square-edged steps with a hard or resilient floor finish; a raked or bullnosed step needs the matching profile in the same range.

Specifications

Profile material Aluminium alloy
Insert material Slip-resistant PVC
Tread width 70mm
Riser height 56mm (53mm of face below the tread plate)
Gauge 3.5mm
Insert channels Single
Front profile Square, vertical face; ramped rear edge
Suits step nose Square-edged steps
Suitable floor coverings Vinyl, LVT, wood, other hard flooring, lino, lightweight carpets
Range Manufacturer's DDA range
Stock lengths 2.44m, 2.75m, 3.22m
Finishes on this listing Mill Finish, Bright Polished, Satin Gold, Satin Bronze
Insert colours 19, including Hazard black and yellow
Light reflectance Manufacturer stated per insert colour, 4.48 to 73.69
Slip resistance Manufacturer stated: 70 PTV dry, 58 PTV wet (BS 7976-2, Floor Safe Ltd FS10174, linished tread sample)
Exterior inserts Accepted (manufacturer stated); quoted on request
Fixing Screw and plug, or bonded with adhesive

Choosing the right option

Check the step first: this profile needs a square nose, and on a raked or bullnosed step it will not sit tight to the riser.

Choose the insert by contrast, not by taste. Take the LRV of the floor covering that meets the nosing and pick an insert at least 30 points away: Premium Black (4.48), Dark Blue (5.06) or Dark Green (7.96) against a pale floor; White (73.69), Oyster (58.10) or Yellow (55.35) against a dark one. Hazard, the black and yellow band, is for a step that must be flagged as a hazard in its own right, and on this range it is priced the same as the plain colours.

Pick the finish last. Mill Finish is the standard and the most economical; Bright Polished, Satin Gold and Satin Bronze are chosen to match handrails and ironmongery. Dark Bronze, Satin Black, Mirroflect Silver and Mirrorflect Gold are on the companion listing. Measure the going and take the next stock length up; all three lengths cut down on site.

Installation, use and care

Fix to a clean, sound, dry substrate: drilled and screwed through the tread plate into plugs, or bonded with a construction adhesive where drilling is not wanted. Lay the floor covering over the ramped rear edge. Cut with a fine-tooth blade and de-burr the ends. Clean with warm water and a neutral detergent; keep abrasive pads, solvents, bleach and acidic cleaners off both the insert and the metal.

Frequently asked questions

Does the 56mm face make the stair compliant on its own?

No single component does. The face gives you the riser dimension and the published LRVs let you meet the contrast test, but the result depends on the insert and finish against your floor, and Building Control confirms the finished stair.

What is the difference from the 32mm square-edge profile?

Same tread, gauge, inserts and finishes; the face is 56mm against 32mm, which is what takes the riser past the 55mm regulatory figure.

Ordering and delivery

Every combination on this page is priced from the manufacturer's current trade list. For anything not shown, a whole-building quantity or cut-to-size, contact us for availability and lead time.

View our complete range of stair nosing profiles — aluminium, rubber and PVC options for every application.

Delivery Information

ServiceTimeframeCost
Standard UK Delivery2 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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Customer Reviews

Overall rating: 5.0 / 5 from 5 reviews.

Customer photo review of Aluminium Stair Nosing 70x56mm Square Edge, DDA 56mm Riser, Anti-Slip Insert

Came securely packaged, which was a relief given the size of it. Installed this on our subway stations exit, and its been fabulous against the damp slipperiness weve had with all the rain. The stair nosing has provided excellent traction when footfall increases during rush hour; you can really feel the difference underfoot.

Aluminium Stair Nosing 70x56mm Square Edge, DDA 56mm Riser, Anti-Slip Insert

Took a punt on this after measuring my warehouse stairs for a safety refurb, and it came through the post with everything intact. The stair nosing was snugly packaged and arrived quicker than expected, considering Id read varying delivery times in reviews. Perfect fit on our steel steps, giving just the grip we hoped for with all that footfall through the day.

Aluminium Stair Nosing 70x56mm Square Edge, DDA 56mm Riser, Anti-Slip Insert

Got this for adding a nice sleek look to our amphitheatre’s stairs and it did just that! The stair nosing added a neat finish that really complements the environment, almost like it was always meant to be there. Gripped well too with all the foot traffic weve been having!

Aluminium Stair Nosing 70x56mm Square Edge, DDA 56mm Riser, Anti-Slip Insert

Customer photo review of Aluminium Stair Nosing 70x56mm Square Edge, DDA 56mm Riser, Anti-Slip Insert

Solid choice. I chopped the aluminium nosing down to size for the outdoor steps at our flat, no hassle there. It slots in nicely and stays put even with a bit of weather wear; you wont be slipping around! The stair nosing gives me peace of mind walking up after rain. Thumbs up from me.

Aluminium Stair Nosing 70x56mm Square Edge, DDA 56mm Riser, Anti-Slip Insert

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