express nosings logo web
£0.00 0

Basket

No products in the basket.

Free Shipping

Spend £300 or more

Safe Checkout

Encrypted and secure

Free Samples

Just pay for shipping

5 Star Reviews

Reviews.io trusted site

Genesis Aluminium Stair Nosing NSL26 67x55mm Tredsafe Insert External

Genesis

✓ In Stock

  • NSL26 external aluminium stair nosing with durable Tredsafe® insert
  • 67 x 55mm rake back profile ideal for exposed outdoor staircases
  • Three-dimensional pyramid anti-slip surface for wet and dry conditions
  • DDA compliant design meeting BS8300:2009+A1:2010 guidance
  • Mill finish aluminium channel with optional anodised or powder coated finishes
  • Alternative product for internal use available here
  • £FREE - Spend £300 or more
  • £12.49 - Under £300
  • 1-2 Days Delivery
  • FREE 2-4 Day Click and Collect
Riser Size55mm
ChannelSingle Tredsafe Insert
ModelNSL26
Tread Size67mm
Nosing Edge ShapeRakeback
MaterialAluminium
Nosing TypeCommercial All, External, Ramped
Size67mm x 55mm
Suitable for Floor TypeCarpet, Laminate, LVT, Tile
Fixing MethodGlue or Screw or Tape, Screwfit
FinishAluminium Colours
Environmental ResistanceSuitable for indoor and outdoor environments
Profile TypeStair Nosing

Price range: £43.12 through £138.74 inc. VAT

ex. VAT £35.93-£115.62
  • Delivered tomorrow if you choose Express Delivery
Encrypted secure checkoutSatisfactory guaranteed
  • Pay by Invoice

The NSL26 External Aluminium Stair Nosing is a DDA compliant rake-back stair nosing designed for external staircases and demanding environments where enhanced slip resistance is required. The profile features a durable aluminium channel with a specialist Tredsafe® anti-slip insert, providing excellent traction in both wet and dry conditions.

With a 67 x 55mm ramp-back profile, the NSL26 is ideal for installations where no floor coverings or resilient flooring are used. The rake-back design provides a smooth transition across the step edge while clearly defining the step for improved safety and accessibility.

The Tredsafe® insert is manufactured from a specially formulated blend of P.V.C., silica quartz and polymeric plasticiser, creating a hard-wearing, homogeneous anti-slip surface. Its distinctive three-dimensional pyramid pattern enhances grip and delivers reliable slip resistance in both wet and dry environments, making it ideal for outdoor stairs exposed to weather.

The aluminium profile is supplied in a Mill finish as standard, with anodised and powder-coated finishes available on request. Designed for commercial and public buildings, the NSL26 external stair nosing helps improve step visibility and safety while meeting accessibility guidance.

The NSL26 profile is designed to meet the guidance outlined in Approved Document M and BS8300:2009+A1:2010, helping ensure safe and accessible stair design in public environments.

 

 

 

 

Dimensions may vary by up to ±5mm in line with supplier manufacturing tolerances.
**1.0m, 1.5m and 2.0m are custom cut lengths to order. As such these are non returnable except where there is a fault. This does not affect your statutory rights**
Anti Slip Stair Nosing 67 x 55mm NSL26 Tredsafe   Indoor/Outdoor DDA Compliant Aluminium Edge Trim With PVC Insert
  1. Ensure the stair surface is clean, dry and structurally sound.
  2. Position the stair nosing on the step edge and mark fixing points through the pre-drilled holes.
  3. Drill and plug the fixing locations.
  4. Apply a suitable exterior-grade adhesive to the underside of the aluminium profile.
  5. Fix the nosing in place using appropriate countersunk screws.
  6. Insert the Tredsafe® anti-slip insert to complete the installation and conceal fixings.

Installing step profile with drill and adhesive.

Stair carpet fixing instructions in four steps.

Riser Size55mm
ChannelSingle Tredsafe Insert
ModelNSL26
Tread Size67mm
Nosing Edge ShapeRakeback
MaterialAluminium
Nosing TypeCommercial All, External, Ramped
Size67mm x 55mm
Suitable for Floor TypeCarpet, Laminate, LVT, Tile
Fixing MethodGlue or Screw or Tape, Screwfit
FinishAluminium Colours
Environmental ResistanceSuitable for indoor and outdoor environments
Profile TypeStair Nosing

What makes the NSL26 suitable for external stairs?

The profile is fitted with a Tredsafe® insert specifically designed to provide reliable slip resistance in wet and dry conditions.

What materials are used in the Tredsafe insert?

Tredsafe inserts are manufactured from a blend of PVC, silica quartz and polymeric plasticiser to create a durable anti-slip surface.

Is the NSL26 external stair nosing DDA compliant?

Yes. The NSL26 is designed to meet the guidance set out in Approved Document M and BS8300:2009+A1:2010.

Where is the NSL26 external nosing typically used?

It is commonly installed on outdoor staircases in commercial buildings, schools, hospitals, transport hubs and public access areas.
Orders placed before 1400 Mon-Friday will normally be dispatched the same day. Please see our shipping options below:

Standard Delivery

Standard delivery is available for most of our items that are under 1.2m in length. Standard delivery is tracked and normally takes 3-4 working days.

£3.99 Available for products under 1.2m in length

Express Delivery

Express delivery is available for most of our items. Express delivery is tracked and normally takes 1-2 working days with most deliveries arriving next day.

from £8.99 for products under 1.2m in length
from £11.99 for products over 1.2m up to 2.0m
from £12.49 for our commerical range

Long Length Delivery

Long Length delivery is an Express delivery service that applies to most of our items that are over 1.2m in length. Express delivery is tracked and normally takes 1-2 working days with most deliveries arriving next day. Products over 1.2m have to be shipped using these services

From £12.49 - £24.99 for products over 1.2m. Free if you spend over £300

FREE Delivery

For orders over £300
*Please note the above rates apply to most GB mainland postcodes. On rare occassions our couriers may increase their rates for some postcodes in which case we will call you to discuss your options.
ecopow Limited Trading as Express Nosings © 2026 All rights reserved
Company No. 07247540 | VAT: 466137382