The 70mm x 30mm stair nosing profile has become the go-to choice for commercial and high-traffic environments across the UK. Here's why this substantial profile is specified by architects and contractors alike.
Understanding the 70mm x 30mm Profile
This profile refers to the dimensions of the stair nosing:
- 70mm – The width across the tread surface
- 30mm – The depth down the riser face
This generous sizing provides maximum protection for the stair edge while ensuring excellent visibility and slip resistance.
Why Choose 70mm x 30mm?
Superior Edge Protection
The wider profile covers more of the vulnerable stair edge, protecting against chipping, cracking, and wear from heavy foot traffic.
Enhanced Visibility
A 70mm nosing is highly visible, making it easier for users—especially those with visual impairments—to perceive each step clearly.
Building Regulation Compliance
The 70mm width exceeds the minimum 50-65mm contrast requirement in Part M, ensuring your installation comfortably meets accessibility standards.
Durability
Larger profiles are typically manufactured from thicker material, providing extra durability for demanding environments.
Ideal Applications
- Shopping centres and retail
- Schools and universities
- Hospitals and healthcare facilities
- Transport hubs and stations
- Office buildings
- Public buildings and councils
- Sports and leisure facilities
Material Options
70mm x 30mm nosings are available in:
- Extruded Aluminium – Lightweight, corrosion-resistant, available in multiple finishes
- Cast Aluminium – Extra heavy-duty for the most demanding applications
- GRP – Chemical resistant for industrial environments
Anti-Slip Insert Options
Most 70mm x 30mm nosings accommodate anti-slip inserts:
- Carborundum (maximum grip)
- Ribbed rubber
- PVC inserts
- Photoluminescent strips for emergency visibility
Installation
Due to their size, 70mm x 30mm nosings are typically screw-fixed with 4-6 fixings per metre length. For concrete stairs, use appropriate plugs and anchors.
View our range of 70mm x 30mm stair nosings or contact our team for specification advice.