Aluminium flyscreen mesh in 30 m rolls rated BAL29, 610 to 1220 mm wide, and heavy-duty aluminium mesh in 14 m rolls in 910 and 1220 mm. Aluminium is more durable than fibreglass for windows and doors; the heavy-duty mesh suits big openings and high-traffic doors.See the Flyscreen Mesh Buying Guide for choosing a mesh by type, width and BAL rating.