The Reynaers Group is best known for its aluminium solutions via the Reynaers Aluminium brand, but it can count on another equally innovative brand: Forster. This Swiss brand, which is part of the Group, specialises in steel and stainless steel profile systems. Forster offers solutions for windows, internal and external doors and curtain walls, combining the precision of Swiss craftsmanship with the international strength of the Reynaers Group. A unique opportunity for architects and building professionals to design in steel, with particular attention to detail, safety and durability.
Design freedom in steel
For professionals looking for maximum creative freedom, Forster offers a wide range of profile systems in steel and stainless steel for windows, doors and façades. Thin profiles, long spans and a variety of aesthetic possibilities make steel a material of choice for contemporary architecture.
Thanks to the technical support of the Reynaers Group, you benefit from accompaniment from design to completion, including for complex projects. BIM models, system details, technical documentation and personalised expertise are all at your disposal. Together, safe and sustainable architecture is realised, without compromise.

A space where architecture, innovation and sustainability meet to create unique and inspiring workplaces. (Reynaers Aluminium)
Safety without compromise
Steel is by nature an extremely strong material, and Forster fully exploits its properties. The systems are available in tested and certified versions for:
• Fire and smoke resistance: EI30 to EI120 for fixed partitions, EI1 30 to EI1 60 for doors.
• Resistance to burglary: from RC1 to RC4.
• Resistance to bullets: from FB4 to FB6.
Forster thus meets the most stringent requirements in terms of safety and compliance, for all types of projects: public, residential or utility buildings.
One brand, solutions for indoors and outdoors
Forster offers a comprehensive solution steel for interior and exterior applications. From elegant, slimline internal doors with fire and smoke-resistant properties to high-performance external joinery systems that meet the most stringent thermal and structural requirements. As a result, you benefit from aesthetic and technical continuity throughout the project, from façade to interior.
Sustainable choices, down to the smallest detail
The sustainability is at the heart of Forster's vision. Profile systems are free of plastics for thermal insulation and composed of at least 75% recycled steel. Forster is also banking on low carbon steel, reducingCO₂ emissions by up to 60% during production. The systems are 100% recyclable and have EPD certification, making them perfectly compatible with the sustainability objectives of LEED and BREEAM projects.
Why choose Forster?
• Total freedom of design in steel and stainless steel.
• Solutions for indoors and outdoors, in a unified aesthetic line.
• Certified performance: resistance to fire, smoke, burglary and bullets.
• Sustainable plastic-free systems, with a high proportion of recycled materials.
• Reynaers Group support: local expertise and international experience.
With Forster, building professionals opt for technical reliability, aesthetic freedom and lasting impact combined in a single system.
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This promotional article was written by Reynaers Aluminium as part of the company's membership of the Paperjam Club. If you would like to become a member of the Club, please contact us at .