2mm Aluminium Coping – 135° External Corner | 125mm External Leg

Easily connect angled walls with lightweight aluminium coping that delivers strength and a seamless finish.

This 135° external corner unit is built to connect two sloping coping runs at an angle, ensuring a secure and watertight joint on parapet walls. Made from 2mm 1050A-grade aluminium, it's a lightweight yet durable solution that holds up in tough weather. The 125mm external leg offers generous coverage for wider wall designs, and the powder-coated surface protects against corrosion, UV, and wear.

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 £78.72

excluding shipping cost

Download Colour Chart

Features + Benefits

Designed for 90° external corners in sloping coping systems
Made from strong 2mm 1050A-grade aluminium
Finished with a long-lasting polyester powder coat
Fire-rated A2-s1,d0 for full safety compliance
Sleek look with no visible fixings
Supplied with 1.5nr fixing brackets per unit
Click-fit system allows fast and secure installation
RAL and BS colour options available
Suitable for residential, commercial, and industrial projects

Specs & Options

Material: 1050A Grade Aluminium
Thickness: 2mm
Internal Leg: 75mm
External Leg: 125mm
Finish: Polyester powder-coated (external grade)
Colours: RAL and BS options available
Fire Rating: A2-s1,d0
Fixings: 1.5nr hidden brackets per unit
Lead Time: 5 to 10 working days
Custom Sizes: Available on request

Installation / Usage Instructions

Each unit comes with hidden brackets. Simply attach the bracket to the top of the wall and click the coping into place. No visible screws. No specialist tools required. Clean finish in just a few minutes.