A 70 x 32mm square front aluminium stair nosing with a ramped back edge and a textured High Grip insert. The ramp tapers the rear of the profile down to the floor, so it finishes cleanly against LVT, wood and other hard floors without a raised lip. It is for internal stairs in shops, offices, restaurants and hotels where wet footwear is a daily risk.
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.
Why this nosing works
A ramp instead of a step at the back
A standard nosing relies on the floorcovering butting up to a 3.5mm upstand. With hard floors that vary in thickness, that upstand can leave a lip. Here the back edge ramps down, so the transition from nosing to floor is smooth whatever the covering, and the 70mm top leg puts the insert well onto the tread.
Grip figures you can check
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.
Contrast you can put a number on
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.
Square at the front
The nose is a crisp right angle with a 32mm front leg, for square-cut steps. Where the riser face itself must carry a 55mm contrast band, choose the 70 x 56mm DDA version. For deep treads, there is a twin-insert 93 x 38mm ramp back.
Nine finishes
Nine finishes. Mill Finish for plant rooms and service stairs; Bright Polished, Satin Silver and Mirrorflect Silver for a silver line from soft to mirror-bright; Satin Gold and Mirrorflect Gold for warm interiors; and Satin Bronze, Dark Bronze and Satin Black to sit quietly on wood, stone-effect and dark floors.
- Ramp back aluminium profile, 70mm tread x 32mm riser, 3.5mm gauge
- Textured High Grip insert: pendulum 95 dry, 60 wet
- Obsidian (LRV 1.80) or Solar (LRV 55.10)
- 9 finishes, 3 stock lengths, for vinyl, LVT, wood and other hard flooring
Where it's used
Internal stairs finished in LVT, engineered wood, laminate, vinyl or other hard flooring: shops and showrooms, restaurants and bars, hotel and office stairs, mezzanines and the communal stairs of new-build flats.
Specifications
| Profile |
Square front with ramped back, single insert channel |
| Range |
Standard range |
| Tread (top face) |
70mm |
| Riser (front leg) |
32mm |
| 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, LVT, wood and other hard flooring |
| 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 |
Choosing the right option
Insert colour. Solar for dark, mid-grey, blue and green floors; Obsidian for white, cream, beige and light grey floors. There is no price difference between them.
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. List your step widths, then work out which of the three lengths cuts them with the smallest offcuts. Allow one spare length on a long flight.
Dry, decorative stair? The same profile is available with standard PVC inserts in 19 colours.
Installation, use & care
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 up to the ramped back so it finishes flush. Keep the textured face clean: dirt and polish build-up fill the texture and lower the grip figures. A damp mop with a neutral cleaner is enough. Do not use abrasive pads on the metal finishes.
Frequently asked questions
What are the slip test results for this insert?
Independent pendulum testing gave 95 in the dry and 60 in the wet. UK Slip Resistance Group guidance classes 36 and above as low slip potential, so even a wet insert has a large safety margin. Those results assume a clean insert: dirt or floor polish in the texture will lower them.
What is a ramp back stair nosing?
The rear edge of the profile slopes down to floor level instead of ending in a square upstand. Hard floors such as LVT and wood then finish against it with no raised lip, which looks cleaner and removes a small trip edge.
Is the High Grip insert suitable for external steps?
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.
Which floors is it designed for?
Vinyl, LVT, wood and other hard flooring. For carpet, choose a square or rake back profile with a standard gauge instead.
Which insert colour gives the best contrast?
The one furthest from your floor in light reflectance value. Solar is 55.10 and Obsidian 1.80. Approved Document M treats a difference of more than 30 LRV points as adequate visual contrast, so check the LRV on your floorcovering data sheet and pick the insert on the other side of the scale.
Ordering & delivery
You order by the length: each variant is 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.