A 93 x 38mm square front aluminium stair nosing with a ramped back and twin textured High Grip inserts, the deepest tread in this range. Two grip bands across 93mm cover almost the whole landing zone of the foot, and the ramp lets the floorcovering finish without a lip. It is made for crowded internal stairs in vinyl or lino.
Choose Obsidian or Solar inserts in any of nine aluminium finishes, in 2.44m, 2.75m or 3.22m stock lengths for cutting on site.
Why this nosing works
The widest grip band in the range
With 93mm of tread and two High Grip strips, the descending heel and the ascending toe both land on texture. The front leg is 38mm on the outside face and 35mm inside, which gives a deep, visible edge on square-cut steps.
Why texture beats a smooth insert
Wet shoe soles slide on smooth plastic. The High Grip insert has a textured PVC surface that keeps contact through a film of water: pendulum 95 dry and 60 wet, independently tested, against the 36 that UK Slip Resistance Group guidance treats as low slip potential. Two strips across the 93mm tread put that grip under both the descending and the ascending foot.
Obsidian or Solar
Obsidian (dark charcoal, LRV 1.80) and Solar (golden yellow, LRV 55.10) are the two colours. Pick the one that differs from your floor by more than 30 LRV points, not the one that matches it.
Ramped at the back
The rear edge tapers to the floor, so vinyl and lino finish flush with no upstand to catch a heel or a trolley wheel. For lighter traffic, the single-insert 70 x 32mm ramp back is the economical alternative.
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, 93mm tread x 38mm riser, 3.5mm gauge
- Twin textured High Grip inserts: pendulum 95 dry, 60 wet
- Obsidian (LRV 1.80) or Solar (LRV 55.10)
- 9 finishes, 3 stock lengths, for vinyl and lino
Where it's used
Crowded internal stairs finished in vinyl, safety vinyl or lino: leisure centres and swimming pool buildings, stations, stadium and arena concourses, school main stairs, hospital stairs and shopping centres.
Specifications
| Profile |
Square front with ramped back, double insert channel |
| Range |
Standard range |
| Tread (top face) |
93mm |
| Riser (front leg) |
38mm external, 35mm internal |
| Gauge |
3.5mm |
| Carrier material |
Aluminium alloy, UK manufactured |
| Insert |
Two High Grip textured anti-slip inserts: 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 and lino |
| Use |
Internal stairs; insert service range -10°C to 80°C |
| Fixing |
Screw-fix through the channel, then fit the inserts 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 channels, peel the backing from the self-adhesive inserts and press them 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
How slip-resistant is the High Grip 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.
Why choose a 93mm tread with twin inserts?
It puts two bands of textured grip under the foot, so both ascending and descending steps land on the insert, and it gives the widest, most visible edge in the range. It suits stairs where crowds move at once.
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.
What floorcoverings does it suit?
Vinyl and lino, including safety vinyl. The 3.5mm gauge and ramped back give a flush finish with the covering. Carpet needs a different profile.
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 two inserts 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.