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Most buildings have two kinds of stair: the dry flights inside, and the steps that take the weather at the entrance or fire escape. This twin channel ramp back nosing covers both with one profile. The 93mm aluminium tread, straight 38mm front leg and tapered back edge stay the same. You choose the insert for each step: textured High Grip for internal stairs, or gritted Exterior Grip where rain, frost and tracked-in grit are part of daily use.
The two inserts sit side by side over almost the whole 93mm tread, so your foot finds grip whether it lands on the arris or further back. Going down, the heel strikes the nosing first, and that depth is what stops a slip becoming a fall.
Obsidian and Solar are a textured PVC film on a PET base, about 2mm thick and self-adhesive in the channel. The manufacturer gives pendulum values of 95 dry and 60 wet, well above the 36 that counts as low slip potential.
Internal use only, rated -10°C to 80°C.
Brimstone, Coal and Everest are GRP with fused alumina or quartz grit set into the resin under a gel coat, so the grip runs through the insert, not just across its face. Published values are above 95 dry and above 85 wet, with General Purpose fire grade.
Internal and external use.
Behind the inserts the tread tapers to a fine edge. The floor covering is laid tight against it, leaving no upstand to trip on, sweep around or lift.
Every insert has a published LRV: Obsidian 1.80, Solar 55.10, Coal 5.09, Brimstone 54.24, Everest 58.00. Approved Document M asks for a difference of more than 30 points between nosing and tread, so one dark and one light option will clear it on almost any floor. The 93mm tread band exceeds the 55mm in Approved Document K, and the profile is classed as Building Regulations compliant.
Schools, offices, health buildings, hotels and flats where the main stair and the outside steps should match: High Grip inside, Exterior Grip on the entrance and escape steps, one finish throughout. For a job that is all internal or all external, the same 93 x 38mm profile is also listed with twin High Grip inserts only and with twin Exterior Grip inserts only.
| Profile | Square edge with ramped back, twin insert channel |
| Range | Standard range |
| Profile material | Extruded aluminium |
| Tread (top leg) | 93mm |
| Riser (front leg) | 38mm overall; 35mm inside leg |
| Gauge | 3.5mm |
| Stock lengths | 2.44m (2440mm), 2.75m (2750mm), 3.22m (3220mm) |
| Finishes | Mill Finish, Bright Polished, Satin Silver, Satin Gold, Satin Bronze, Dark Bronze, Satin Black, Mirrorflect Silver and Mirrorflect Gold (9) |
| High Grip inserts | Obsidian (black) and Solar (yellow): textured PVC on a PET base, approx. 2mm, self-adhesive; internal use, -10°C to 80°C |
| Exterior Grip inserts | Brimstone (yellow), Coal (black) and Everest (light grey): gel-coated GRP with fused alumina or quartz grit; internal and external use |
| Slip resistance (TRL pendulum) | High Grip 95 dry / 60 wet; Exterior Grip above 95 dry / above 85 wet - manufacturer stated (36+ = low slip potential) |
| Insert LRV | Obsidian 1.80, Solar 55.10, Coal 5.09, Brimstone 54.24, Everest 58.00 - manufacturer stated |
| Fire (Exterior Grip insert) | General Purpose (GP) grade - manufacturer stated |
| Suitable floorcoverings | Vinyl, lino, LVT and other hard floor finishes |
| Building Regulations | Building Regs compliant profile |
| Fixing | Screw and adhesive fix to the tread (fixings and adhesive not included) |
| Availability note | Bright Polished is supplied with High Grip inserts only |
Insert first, by location. Any step that is outside, under a canopy, or just inside a door where wet shoes arrive takes Exterior Grip. Dry internal flights take High Grip.
Then colour, for contrast. On pale treads use Obsidian or Coal. On dark or mid-tone floors use Solar or Brimstone, or Everest where safety yellow is too strong. Check your floor's LRV against the figures above.
Then finish. Mill Finish is the economical choice for service and escape stairs, from £139.90 for a 2.44m length with High Grip. Satin Black and the bronzes sit quietly in dark schemes. Satin Gold, Bright Polished and the Mirrorflect finishes are for stairs where the metal is meant to be seen, with Mirrorflect Gold the most expensive. Exterior Grip costs more than High Grip in every finish.
Length last. Pick the stock bar that cuts into your step widths with the least waste.
Make good damaged edges, then clean and dry the step. Cut the bar to width with a fine-tooth saw and mark the fixings with it pushed hard against the step. Bed it on cartridge adhesive (outside, this also stops water tracking underneath) and screw down with corrosion-resistant fixings. Lay the floor finish tight to the ramped back and seat the inserts. Clean with water and a neutral detergent, and brush grit out of Exterior Grip inserts. A worn insert can be replaced without lifting the aluminium.
Fixings and adhesive are not included. Tell us the substrate and we will quote suitable fixings.
Exterior Grip: Brimstone, Coal or Everest. They are gritted GRP rated for external use, with published pendulum values above 95 dry and above 85 wet. The textured High Grip inserts are for internal stairs only and should not be fitted to exposed steps.
Yes, and that is what this listing is for. Every finish except Bright Polished is offered with both insert families, so the internal stair can take High Grip and the entrance or escape steps Exterior Grip, with the aluminium matching throughout.
Allow a few millimetres per saw cut. A 2.44m bar gives two 1.2m steps, a 2.75m bar two 1.35m steps, and a 3.22m bar three 1.05m steps or two 1.6m steps.
All 126 combinations of finish, insert and length are priced individually above, with inserts included. Bars ship full length for cutting on site, with flat-rate UK delivery at £9.99; order by 2pm on a working day for same-day dispatch. For projects, send us the step count and widths for a quote.
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 7 reviews.
Works a treat for what I paid. Popped the rail in at our local art gallery, and it gives the steps that extra bit of durability with some style to boot. Compared to similar bits Ive swung by in the DIY shops, this ones top-notch value with a really solid feel!
Ramp Back Twin Channel Aluminium Stair Nosing 93 x 38mm, High Grip or Exterior Grip Inserts
Had to address the wear and tear on our warehouse steps, and this grip strip was just right—weighty enough to feel solid underfoot, even with constant use. Tacked down nicely and seems set to last through daily hustle.
Ramp Back Twin Channel Aluminium Stair Nosing 93 x 38mm, High Grip or Exterior Grip Inserts
Arrived in secure packaging with no damage at all. I fitted the channels to the hotel lobby stairway, and the finish looks superb against the marble under various lighting conditions. Even with high foot traffic on damp days, these grips deliver awesome traction, bringing both safety and style to our setting.
Ramp Back Twin Channel Aluminium Stair Nosing 93 x 38mm, High Grip or Exterior Grip Inserts
Took a chance on this, and it arrived promptly in sturdy packaging that kept everything sorted during transit. Perfect for our hospital corridor, these aluminium stair nosings fit right over the vinyl step coverings and havent budged an inch since we installed them. Id definitely consider this for future projects without hesitation!
Ramp Back Twin Channel Aluminium Stair Nosing 93 x 38mm, High Grip or Exterior Grip Inserts
Picked this up for the outside steps of our community library, and Im pleased with how well it complements the stone. While making the steps safer and more defined, its weighty feel suggests itll handle plenty of foot traffic during our autumn book days without any trouble. Loving the balance between practicality and visual finish that the stair nosing brings to such a classic spot.
Ramp Back Twin Channel Aluminium Stair Nosing 93 x 38mm, High Grip or Exterior Grip Inserts
Installed it on the carpeted stairs at the local shopping centre, and it fit perfectly well. After several months of heavy foot traffic, I can see that it’s still holding its shape without any signs of wear or loosening. Its proven to be very durable and looks like itll continue enduring for some time.
Ramp Back Twin Channel Aluminium Stair Nosing 93 x 38mm, High Grip or Exterior Grip Inserts
Remarkably easy to fit! I wasnt sure how cutting the aluminium stair nosing to size would go, but it turned out simpler than I anticipated. It snugly fitted my outdoor staircase, where its been coping well with the weather and foot traffic. Lovely bit of kit for sprucing up and safeguarding steps!
Ramp Back Twin Channel Aluminium Stair Nosing 93 x 38mm, High Grip or Exterior Grip Inserts
