Folding door system for large structures


External folding doors provide users with significant flexibility. They allow for easy utilization of favorable weather conditions and virtually eliminate the barrier between the interior of the building and its surroundings. Thus, such doors can serve as excellent, wide transitions from a house to a terrace or connect a café or restaurant with its outdoor area, used seasonally.



The MB86 Fold Line system is a solution that is highly convenient for everyday use, while also possessing high technical parameters and enabling the construction of large-sized structures. Folding doors can be opened both outward and inward of the building. They can have any configuration of panels. This is a modern product designed to meet the high demands of users, architects, and investors.

  • Three-chamber, durable aluminum profiles with a structural depth of 86 mm for frames and 77 mm for door leaves
  • Available for both corner and panoramic configurations, allowing for the assembly of structures with up to 8 door leaves
  • Thermal inserts in the central chamber, 24 mm wide for frames and 34 mm wide for door leaves, ensuring high thermal insulation of the structure
  • Dedicated fittings ensure smooth operation of door leaves weighing up to 120 kg
  • Large permissible dimensions, enabling the creation of door leaves up to 3000 mm in height and 700 to 1200 mm in width
  • Wide range of threshold solutions, including those with sealing or user-friendly features such as concealed thresholds
  • Broad range of glazing options from 13.5 to 61.5 mm, accommodating single- and double-chambered glass units, including specialized ones with enhanced acoustic insulation or burglary resistance
  • Highly compatible with the well-known and respected MB86N window and door system, allowing for the integration of analogous profiles and some common fittings, gaskets, and accessories for both systems.

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