This article forms part of the Decorative and Applied Arts Encyclopedia, a master reference hub providing a structured overview of design history, materials, movements, and practitioners.
Mart Stam (1899–1986) was a Dutch architect, urban planner, educator and furniture designer. He helped shape European modernism through architecture, publishing, teaching and experiments with tubular-steel furniture. His best-known contribution was an early cantilever chair made without conventional rear legs.
Stam worked across the Netherlands, Germany, Switzerland and the Soviet Union. His career connected New Objectivity, the Bauhaus, the Weissenhof Estate, New Frankfurt and post-war design education. However, historians continue to debate the authorship and development of several projects associated with him.
Mart Stam: Dutch Architect, Urban Planner and Designer
Martinus Adrianus Stam was born in Purmerend, the Netherlands, on 5 August 1899. He completed a carpentry apprenticeship between 1917 and 1919. He also studied drawing and qualified to teach the subject.
Stam initially worked for the Rotterdam architect Marinus Jan Granpré Molière. However, his emerging modernist outlook soon drew him towards more experimental circles. He joined the Rotterdam-based group Opbouw and became involved in debates about functional architecture, standardisation and collective design.
In 1922, Stam moved to Berlin. There, he worked in offices associated with Max Taut and Hans Poelzig. He later travelled to Switzerland and worked with Karl Moser and Arnold Itten. These experiences placed him within an expanding European network of architects who rejected historical ornament and sought socially useful forms of construction.
Mart Stam and the European Avant-Garde
ABC—Beiträge zum Bauen and New Objectivity
In 1924, Stam established the magazine ABC—Beiträge zum Bauen with the Swiss architects Hans Schmidt and Emil Roth. Other modernists, including Hannes Meyer and Hans Wittwer, contributed to the publication.
ABC promoted rational planning, new construction methods and architecture shaped by social need. Its austere typography and polemical tone expressed principles closely related to Neue Sachlichkeit, or New Objectivity.
The magazine also helped connect architects working across national borders. Through these relationships, Stam became an important intermediary between Dutch, German and Swiss modernism.
Mart Stam and the Van Nelle Factory
Stam returned to the Netherlands in 1926 and worked for Brinkman & Van der Vlugt until 1928. During this period, the practice developed the Van Nelle Factory in Rotterdam.
Johannes Brinkman and Leendert van der Vlugt served as the project’s principal architects. Stam contributed during the factory’s formative development, but sources do not support describing him as its sole designer. His precise role remains a subject of historical discussion.
The completed complex nevertheless embodied many principles that Stam advocated. Its glass curtain walls, exposed structure, daylight and efficient circulation made it an internationally significant work of industrial modernism.
Mart Stam and the Cantilever Chair
The 1926 Gas-Pipe Prototype
Stam’s most influential furniture experiment began with a chair assembled from lengths of gas pipe and standard connecting joints in 1926. Instead of four conventional legs, its continuous frame bent towards the floor and supported the sitter without rear legs.
The rigid prototype did not yet provide the springing action associated with later cantilever chairs. Nevertheless, it demonstrated how a continuous metal structure could replace the traditional arrangement of legs, seat rails and supports.
Stam subsequently refined the idea for production in tubular steel. The resulting designs included the S33 side chair and S34 armchair, which became enduring examples of modern furniture.
Breuer, Mies van der Rohe and Contested Authorship
The cantilever chair did not emerge from the work of one designer alone. Marcel Breuer had already explored bent tubular steel in furniture at the Bauhaus. Meanwhile, Ludwig Mies van der Rohe developed a more resilient curved-steel cantilever chair for the 1927 Weissenhof exhibition.
Patent and manufacturing disputes followed. A Dutch court decision in 1931 recognised Stam’s priority in the concept of a chair without rear legs during a dispute involving Thonet and Gispen. However, that legal finding does not reduce the broader history to a single inventor. Breuer, Mies and Stam each developed distinct solutions that transformed modern seating.
The episode also connects Stam to the longer industrial history represented by Michael Thonet, whose company adapted new materials and production systems to furniture manufacture.
Mart Stam at the Weissenhof Estate and Bauhaus
Weissenhof Houses and Die Wohnung
Mies invited Stam to participate in the 1927 Weissenhof Estate in Stuttgart. The exhibition, organised by the Deutscher Werkbund under the title Die Wohnung, presented new approaches to affordable modern housing.
Stam designed three adjoining terraced houses for the estate. Their flat roofs, undecorated surfaces and carefully organised plans reflected his commitment to economical construction. He also displayed cantilever seating in the interiors.
The exhibition brought Stam into direct contact with architects and designers including Mies, Breuer and Gerrit Rietveld. As a result, it became an important meeting point for several competing versions of modernism.
Mart Stam, CIAM and the Bauhaus
In 1928, Stam and Rietveld represented the Netherlands at the first meeting of the Congrès Internationaux d’Architecture Moderne, commonly known as CIAM. The organisation promoted modern architecture and planning as responses to contemporary social and economic conditions.
Stam also taught urban planning as a guest lecturer at the Bauhaus during 1928 and 1929. His teaching linked architecture with housing policy, infrastructure and the organisation of the modern city.
He then contributed to Ernst May’s New Frankfurt programme. Stam designed housing at the Hellerhof estate, where standardisation and efficient planning supported the construction of affordable dwellings.
Mart Stam in the Soviet Union
In 1930, Stam joined Ernst May’s group of architects and planners in the Soviet Union. The team became known as the May Brigade. Soviet authorities commissioned it to plan rapidly expanding industrial settlements during the First Five-Year Plan.
Stam worked on projects associated with Magnitogorsk, Makeyevka and Orsk. These commissions confronted the architects with severe material shortages, changing administrative demands and difficult working conditions.
The Soviet experience exposed a gap between modernist planning theory and political reality. Stam returned to the Netherlands in 1934. Although many proposals remained incomplete or substantially altered, this period became an important chapter in the international history of modern urban planning.
Mart Stam as an Architect and Educator after 1934
After returning to the Netherlands, Stam entered a short-lived partnership with Willem van Tijen. He also participated in De 8 en Opbouw, which united progressive architectural groups from Amsterdam and Rotterdam.
In September 1939, Stam became director of Amsterdam’s Instituut voor Kunstnijverheidsonderwijs. The institution later developed into the Gerrit Rietveld Academie. Until June 1948, he promoted an education that connected design, materials, industry and social responsibility.
Stam subsequently led academies in Dresden and Berlin-Weissensee. Political and institutional conflicts, however, brought his East German career to an end in 1952. He returned to Amsterdam in 1953 and established an architectural office in 1955.
After 1966, Stam largely withdrew from professional and public life. He settled in Switzerland and died at Goldach on 23 February 1986.
Mart Stam in Dutch Museum Collections
Dutch museums preserve Stam’s legacy across furniture, architectural models, publications and archival documents. However, catalogue terminology varies. Some institutions identify him as designer, while others record collaborative, attributed or manufacturing roles.
The Stedelijk Museum Amsterdam holds several works connected with Stam. Its online catalogue includes furniture and works on paper, as well as a chair jointly associated with Breuer and Stam.
The Nieuwe Instituut in Rotterdam preserves the Mart Stam archive, acquired in 1971. This material includes correspondence, drawings, photographs and project documentation. Consequently, it provides essential evidence for studying Stam’s architecture, furniture and professional networks.
Museum Boijmans Van Beuningen records several Stam designs. Examples include a 1931 chair, a 37-part wall-storage system from 1946 and the B-262 chair.
Kunstmuseum Den Haag holds a Model 263 chair. It also catalogues an architectural model of Stam’s Weissenhof houses, held on long-term loan from Delft University of Technology.
The Purmerends Museum, in Stam’s birthplace, preserves chairs, a furniture salesman’s sample and a child’s Schaukelwagen. Together, these objects show how his design principles extended beyond one celebrated chair.
Outside the Netherlands, the Victoria and Albert Museum in London holds a Model S33 cantilever chair under accession number CIRC.825-1968. The museum dates the design to 1926, while the surviving example was manufactured later.
The Legacy of Mart Stam
Mart Stam helped establish a modern design language based on economy, structural clarity and industrial production. His career moved easily between furniture, buildings, publishing, education and urban planning.
Nevertheless, Stam’s reputation requires careful attribution. He contributed to collaborative architectural offices and international networks in which ideas circulated rapidly. Therefore, his significance lies not only in individual authorship but also in his ability to connect people, institutions and experimental practices.
The cantilever chair remains his most recognisable achievement. More broadly, his work demonstrates how modern designers attempted to align form, technology and social purpose during a period of intense political and industrial change.
Sample of Mart Stam Works
- Wall Fixture MSW 27 by Mart Stam for Tecnolumen
- Pair of Chairs by Mart Stam for Mücke-Melder ‘Under License from Thonet’, 1930s
- Four Mart Stam Model S33 Chocolate Brown Leather Cantilever Chairs by Fasem
- Modernist B43 Tabular Desk Chair by Mart Stam, 1950s
- S34 Cognac Armachair by Mart Stam and Marcel Breuer, 1970s
- S 40 Cantilever Chair Designed by Mart Stam
- S 43 Cantilever Chair Designed by Mart Stam
- Mart Stam Oak and Wicker Armchair
Sources
- Bauhaus Kooperation. “Mart Stam.” Bauhaus Kooperation.
- Kunstmuseum Den Haag. “Stoel model 263.”
- Museum Boijmans Van Beuningen. “B-262.”
- Nieuwe Instituut. “The Battle of the Chair with No Back Legs.”
- Purmerends Museum. “Top Pieces.”
- Stedelijk Museum Amsterdam. “Mart Stam.”
- Victoria and Albert Museum. “Chair, Model S33.”
