FFT FLEX Green – a folding door of real stature

DORMA first to offer a folding door with a maximum opening width of up to 2.4 m

FFT FLEX Green – a folding door of real stature

Ennepetal Germany, January 19, 2015 DORMA’s new generation of folding doors in the form of the FFT FLEX Green offers a truly great solution, especially in applications where the architecture is restrictive, yet a wide door opening is still desired. A passage clearance of up to 2.4 m can be achieved where the solution is a synchronized bi-parting doorset with two folding panel pairs left and right. Similarly, unilateral-opening doorsets create a clear opening width of between 800 mm and 1.2 m. The system also comes with strong credentials in terms of energy-efficient building and user safety. The panels consist of aluminum frames with thermal-break profiles and sealed insulation glass units. The especially good thermal transmittance values thus achieved mean these doorsets are also suitable for use in facades. And here DORMA provides planning support in the form of certified, individually computed U-values.

There is also an FFT FLEX Green model approved according to EN 16 005 / DIN 18 650 for emergency escape routes. Whatever the model, the system is intrinsically safe in performing its normal daily operations: A round profile at the secondary closing edge of the panels maintains contact across the gap to the lateral brush seals whatever the panel position, eliminating any crush hazard. A certificate confirming the performance characteristics in accordance with EN 16 361 for powered doors is also available. The motor incorporated in this folding door system is designed for quiet yet especially dynamic operation and offers effective response to increasing wind loads. There is a backup battery pack to keep the system working in the event of a power failure, with combination sensors (motion detectors + infrared curtain) from the DORMA Pro Secure Opti Combi series rounding off the holistically integrated system.

The FFT FLEX Green can be face-fixed to the wall or side-fixed within passage ways and corridors. To ensure stumble-free access whatever the fixing method employed, the slender stainless steel floor rail, included to add stability to particularly wide panels, is recessed for concealment. With various anodized finishes and powder coatings in RAL colors, these doorsets will blend beautifully with any interior design or facade.

DORMA’s new generation of folding doors in the form of the FFT FLEX Green offers a truly great solution, allowing a maximum opening width of up to 2.4 m.


DORMA is the trusted global partner for premium access solutions, security systems & services enabling better buildings. With over 100 years of tradition behind it, the company offers holistic solutions covering all facets of door operability – from hinges, locks, closers and floor springs to automatic door systems and time & access control solutions. DORMA also supplies horizontal sliding wall systems. In fiscal 2013/2014 (June 30), the DORMA Group generated consolidated sales amounting to 1,060 million euros. Headquartered in Ennepetal, the internationally active DORMA Group is represented in more than 50 countries and employs some 7,500 people worldwide.

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