3mm Aluminium Sloping Coping – 3m Length | 100mm External Leg

Achieve a flawless architectural finish with our 3 mm aluminium sloping coping in 3-metre lengths. Designed to protect parapet and boundary walls from weather damage, this longer section ensures fewer joints, a neater appearance, and exceptional long-term performance on both commercial and residential builds.

Key Features

• 3 mm thick structural-grade aluminium for strength and stability

• Extended 3 m length reduces visible joints and speeds up installation

• Built-in slope allows rainwater to drain efficiently off the wall surface

• 100 mm external leg provides secure coverage and clean edge detail

• Powder-coated finish in any RAL colour for a refined aesthetic

• Secret-fix system for a seamless, modern appearance

• Made in the UK with short lead times and rapid nationwide delivery

Why Choose Our 3 m Aluminium Coping

This longer-length coping is perfect for large-scale commercial projects or continuous wall runs where minimal joins are essential. The sloping design directs water away from the façade, preventing staining and damp penetration. Crafted from durable, powder-coated aluminium, it’s a smart, low-maintenance alternative to stone or lead copings — offering a professional finish that lasts for decades.

Why choose 3 m aluminium copings instead of shorter lengths?
Longer 3 m sections create a cleaner, continuous appearance and fewer joints to seal, reducing installation time and potential water ingress points.

Can these copings be used on flat roof parapet walls?
Yes, they’re suitable for flat roofs, boundary walls, and any parapet application where durability and a modern look are required.

Are bespoke sizes available?
Absolutely. We manufacture bespoke aluminium copings to any width or profile, complete with matching stop ends and corner sections.

How is 3 m aluminium coping installed?
Each section uses a concealed bracket system with a slight expansion gap between lengths. This ensures a secure fit and a smooth, seamless finish.

What finishes are available?
All RAL colours are available in a durable polyester powder coat, including Anthracite Grey (RAL 7016) and Jet Black (RAL 9005).

How much does aluminium coping cost?
Pricing varies by size and finish, but our 3 m lengths offer great value for larger projects with fewer joins and reduced installation time.

UK-manufactured 3 mm aluminium sloping coping in 3 m lengths with 100 mm external leg. Available in all RAL colours for parapet and roof applications.