3mm Aluminium Coping – 3m Length | 75mm External Leg

Protect your wall tops with a clean, durable finish that's built to last in all weather.

This 3m aluminium coping piece is designed to cover and protect exposed parapet walls, delivering a clean, watertight seal. Made from high-quality 3mm 1050A-grade aluminium, it offers long-term strength and is powder-coated to resist corrosion and UV damage. With a 75mm external leg, it's ideal for smaller upstands or tighter design requirements, whether in residential, commercial, or industrial builds.

Please refer to the attached RAL colour chart to view available options. At checkout, enter your chosen RAL colour in the designated box.

Choose a variant:

Capping Width

Starting at £225.60

excluding shipping cost

Download Colour Chart

Features + Benefits

3mm aluminium thickness for heavy-duty performance
75mm external leg for slim, neat wall coverage
Polyester powder-coated for weather and fade resistance
Fire-rated to A2-s1,d0 for building compliance
Sleek flat-top design for modern finishes
Clean look with hidden brackets
Fast click-on installation
Available in a wide range of RAL/BS colours
Ideal for new builds, extensions, and refurbishments

Specs & Options

Material: 1050A Grade Aluminium
Thickness: 3mm
Length: 3 metres
External Leg: 75mm
Finish: Polyester powder-coated (external grade)
Colours: RAL and BS options available
Fire Rating: A2-s1,d0
Fixings: Supplied with hidden fixing brackets
Lead Time: 5 to 10 working days
Custom Sizes: Available upon request

Installation / Usage Instructions

Each coping unit comes with hidden brackets. Just attach the brackets to the wall, align the coping, and click it into place. No visible screws or complex tools required.

Looking for a slim, sturdy coping solution for wall protection?

This 3mm aluminium coping with a 75mm external leg is trusted by contractors across the UK. Place your order today or contact the Online Metal Store team for custom size and colour support.