The NSL21 External Aluminium Stair Nosing 67 x 55mm is designed for demanding outdoor commercial and industrial environments, providing exceptional durability, slip resistance and step edge protection. Manufactured from high-quality aluminium extrusion and fitted with a robust Tredsafe® anti-slip insert, this stair nosing enhances safety while delivering a professional and long-lasting finish.

The external NSL21 stair nosing features an external grade Tredsafe® insert developed specifically for environments exposed to moisture and weather conditions. The insert is manufactured from a special blend of PVC, silica quartz and polymeric plasticiser, creating a homogeneous, hard-wearing anti-slip surface suitable for both wet and dry conditions.

The distinctive three-dimensional pyramid pattern of the Tredsafe® insert provides excellent slip resistance, helping to reduce the risk of slips and falls on external staircases where water, dirt or contaminants may be present.

Manufactured in a durable 3mm gauge aluminium profile, the NSL21 offers excellent edge protection in busy environments such as public buildings, schools, transport hubs, commercial premises and external stairways.

With overall dimensions of 67 x 55mm, the NSL21 external stair nosing provides reliable step edge protection and clear visual definition. The design also supports compliance with accessibility standards and has been developed in accordance with BS8300:2009+A1:2010 guidelines.

The NSL21 profile is available in a range of insert colours and finishes to suit a wide variety of projects, combining safety, durability and architectural finish for demanding external installations.