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BF 73 Bi-folding Doors

Alutech Bi Folding Door

Alutech Bi Folding Door

Alutech Systems are one of the largest designers and manufacturers of Aluminium Systems in the world. We pride ourselves in providing outstanding design and specification to make our products stand out from other manufacturers. BF 73, Bi-folding door can be used for Residential or Commercial purposes. Designed for the aesthetics and insulation requirements of a home, with outstanding durability and reliability of commercial application.


  • Maximum vision – minimal sight lines, only 120mm
  • Maximum security – PAS 24 approved
  • Maximum insulation value – down to 1.4 U W/m2K
  • Maximum weather proofing – BS6375 Part 1 : 2009
  • Single or dual colour to any RAL colour
  • Market leading sash size of 1200mm wide
Download the brochure Download the wall chart Download the technical guide


Door leaf configuration

BF70 is available in up to 7 leaves each way (14 total) to allow for the largest possible openings. To suit the specific application, the door leaves are able to open either from the left or right of the opening, either opening towards the inside of the property or to the outside – the choice is yours.

Technical data

  • 120kg per door leaf – providing for the largest openings
  • Panels of up to 3000mm high and up to 1200mm wide
  • Above ground bottom rollers
  • Engineering grade running rollers for a smooth and silky opening and closing operation
  • Thermal properties of down to 1.4 U W/m2K
  • Sightline 120mm or 133mm for maximum vision
  • PAS 24 Security rated
  • Tested to BS6375 Part 1 : 2009

Bi Fold Door

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