Home / Accessories / Aluminium Angle Aluminium Angle£30.00 Must be used if 50mm of backbox or more is on show. Aluminium Angle quantity Add to cart Category: Accessories Description Additional information Description 30mm x 20mm. This is to be used where 50mm or more of the roller door back box is on show. This adheres to the back box to strengthen it up to prevent movement in the wind. Additional information Weight 10 kg Related products External Override (if no other door into garage) £118.00 Add to cart Indoor RTS Plug £29.99 Add to cart Standard Remote £35.00 Add to cart Box Lid (under 3500mm) £50.00 Add to cart