CertificationsFor greater transparency and trust.


An important trend in the kitchen sector revolves around colours + sustainability. Unidecors in architect's colours are combined with native woods or their reproductions. Matt surfaces are shaping modern interior design more than ever. Consumer-relevant topics, such as sustainability, durability, trust, safety, authenticity and naturalness, are currently very much at the forefront and can be experienced to the full. In order to take these important considerations into account, rational has joined COLORNETWORK® – a young and growing network of well-known manufacturers who each year offer a new (further) coordinated colour system across many different furnishing products, while committing themselves to product transparency. Selection of the annual “Sustained Color” by an independent, high-calibre and rotating panel of experts, including interior architects, product designers and trend experts, ensures that the colour is timeless and can be combined time and again, affording interior designers and furnishers almost boundless scope to fulfil their creative vision: today as well as tomorrow. The colours remain attractive, thus creating sustainable values in interior design.

Member of the German Design Council

rational has been a member of the German Design Council since 2018.
Design is orientation. Design is differentiation. Design makes for strong brands – and successful companies. As the design and brand authority of Germany, the German Design Council aims to strengthen the understanding of design for the general public, alongside supporting companies in all aspects relating to their brand and design development.

Golden M

rational is one of the first kitchen manufacturers to have been awarded the "Golden M", quite possibly Europe's most important quality mark. The Deutsche Gütegemeinschaft Möbel e.V.“ (German Quality Assurance Association) only awards the "Golden M" to furniture which has passed extensive and stringent testing. The furniture must be sturdy, safe, durable and well made and may not contain any substances that could pose a health threat. This gives the kitchen consumer the assurance that the furniture being purchased is of the best possible quality and has been reliably tested and approved as being non-harmful to health.

Tested safety

The TÜV Rheinland LGA Products GmbH in Nuremberg has conducted tests on all the rational furniture ranges and certified that in terms of construction and technical equipment all the safety requirements have been met. In recognition of this, rational has been awarded the GS safety mark.

Work Group "The Modern Kitchen"

rational is a member of AMK (Work Group "The Modern Kitchen") and produces all its fitted kitchen furniture in line with these practical ergonomic requirements and subject to the relevant DIN standards.

As a brand-name manufacturer, certifications are indispensable for us. Because they ensure that we observe and fulfil the expectations and requirements that we demand of ourselves. And furthermore, they strengthen the trust that our customers, retailers and suppliers have in our work.

Retailer locator

rational works with highly qualified kitchen retailers who will be pleased to provide you with individually tailored and detailed advice over the telephone or by visiting them in person.


For us, it is always something very special when our kitchens win an award.