Tostem News  |  28.09.22

LFIT design awarded with three prestigious awards

We are delighted and pleased to announce that our L-Fit design on ATIS window frames has been recognizes and awarded with three of the most prestigious awards in product design industry; Good Design Best 100 (2021), iF Design Award 2022 (Product/Building Technology) and Red Dot Award 2022 (Product Design) reflects the company’s success in offering best in class window and door related products.

L-Fit design is a collection of window related hardware fittings for ATIS window frames, which bases on the theme of “harmony between people and architecture,” all window types have been designed with a unified design that successfully combines two elements: human-friendly curves and straight lines that fit beautifully into architecture.

It was an honor for us that L-Fit design was recognizes for its excellence in innovation and design. L-Fit design is a result of careful trial and error that were conducted during the development process on operation method, feeling of operation, maximize functionality and safety.

The hardware fittings also come with distinctive design, where TOSTEM developed signature elements to be instantly recognized of our brand image and has used a unified design code for all our products, hardware, and fittings. It is also very user oriented as we designed all our products, hardware, and fittings primarily for the user’s convenience from the result of years of research including interviews and behavioral surveys with builders and general users.

See ATIS products here.

Once again, our dedication to ‘Design for Good Living Space’ has been recognized and proven that every detail matter.


TOSTEM is a leading Japanese brand for housing solution, window and door related products that combine the world’s highest standards of design, functionality, and safety.

As TOSTEM significantly understands and values the needs of people, the brand engages in product development with comprehensive range of solutions for simple and seamless user experience.

Our product portfolio provides complete “lifestyle solutions” that are flexible, integrated, and coordinated to consumer needs, delivering everyday satisfaction.

About the awards:


The Good Design Award had been a sole comprehensive design evaluation and commendation system in Japan since 1957 by focusing on promoting better life and society through design. Many companies and designers from both inside and outside of Japan participate in the activity to enhance the industry or the quality of life through the design. “G Mark”, the symbol of the award had been recognized widely as a mark representing good design.


The iF Product Design Award was introduced in 1954 and is annually conferred by the iF International Forum Design. The award, which spans multiple disciplines, has more than 5,500 entries from around 59 nations every year.


The Red Dot Design Award is a German international design prize awarded by Red Dot GmbH & Co. KG. Since 1955. It is considered one of the most prestigious awards in the design industry, which will be held once a year.

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