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

Connect your sloping coping system neatly around angled internal corners with our 2 mm aluminium 135 degree internal corner, designed with a 125 mm external leg for strong and consistent wall coverage. This component ensures your coping line flows smoothly through wider internal angles without breaking the visual run.

The sloping profile maintains the correct water fall direction, helping guide rainwater away from the parapet and preventing moisture from collecting in vulnerable areas.

Lightweight, durable, and weather resistant, it provides a clean architectural finish suitable for residential, commercial, and industrial wall and roof structures.

Key Features

• 2 mm architectural grade aluminium for strength and long term performance
  
• 135 degree internal corner designed for angled parapet transitions
  
• 125 mm external leg for secure coverage on medium to large parapet walls
  
• Sloping coping profile encourages efficient water run off
  
• Powder coated finish available in any RAL colour
  
• Works with concealed fixing systems for a clean, screw free look
  
• Manufactured in the UK with reliable quality and fast delivery

Why You’ll Love It

This 135 degree internal corner gives you a smooth, continuous coping line across wider internal angles, keeping the entire parapet visually aligned and professionally finished. The 2 mm aluminium construction adds rigidity, while the 125 mm leg offers generous coverage for larger wall profiles. It is the ideal choice when your project includes angled wall sections that need a watertight and seamless transition.

What is this 135 degree internal corner used for?
It connects two sloping coping sections around a wider internal angle, maintaining a neat and secure finish.

Why choose the 125 mm external leg version?
It provides strong coverage for medium to large parapet walls and enhances overall stability.

Is 2 mm aluminium durable enough for outdoor use?
Yes. It is corrosion resistant, weatherproof, and built to perform in all UK climate conditions.

Can it be colour matched to my coping system?
Yes. We supply powder coating in any RAL colour to ensure a perfect visual match.

How is it installed?
It integrates with OMS’s concealed bracket and sealant system for a watertight joint with no visible fixings.

UK made 2 mm aluminium sloping coping internal corner with 125 mm external leg. Powder coated in any RAL colour for a seamless, secure and watertight transition on angled parapet walls.