International Association of Bridge, Structural, Ornamental and Reinforcing Iron Workers

This international association, usually referred to simply as Ironworkers, was founded in 1896 and represents more than 120,000 workers in Canada and the U.S. Many commonly known structures in North America have come as a result of the work performed by ironworkers, including the Freedom Tower, the Golden Gate Bridge and the Oil Sands Plan Expansion in Alberta. Ironworkers assemble and erect steel frameworks and other metal parts of buildings, bridges, dams, skyscrapers, factories and other steel structures.


The late 1880s brought about an abrupt change in the way bridges and buildings were built. Stone and wood was replaced by steel as the primary source of structural building materials. This led to the creation of architectural ironworkers. The union was officially established on February 4, 1896, by 16 delegates who attended the associations founding convention in Pittsburgh.


The trade(s) that are represented by this union include:


Canadian Headquarters

8-205 Chatelain Drive

St-Albert, AB T8N 5A4



(780) 459-4498

International Website