International Union of Woodworkers

The International Union of Woodworkers (IUW) was a global union federation bringing together unions representing wood carvers, carpenters and joiners.

History
In 1891, the Belgian union of woodworkers organised the First International Wood Workers' Congress, in Brussels. The conference established an international information service, and this organised a further congress in Zurich in 1893, then a conference of woodworkers was organised in London in 1896, alongside the International Labour Congress. However, the information service then ceased to operate, and new international links were not established until 1899. In 1904, this led to the establishment of the International Union of Woodworkers at a conference in Amsterdam.

The federation was based in Stuttgart until 1909, then in Berlin, and from 1920 in Amsterdam. By 1925, it had 44 affiliates in 25 countries, with a total of 1,000,876 members. That year, the small Carpenters' International merged into it.

On 1 April 1934, the federation merged with the Building Workers' International, to form the International Federation of Building and Wood Workers.

Affiliates
The following unions were affiliated in 1929:

General Secretaries

 * 1904: Theodor Leipart
 * 1920: Kees Woudenberg
 * 1929: Fritz Tarnow
 * 1933: Willem Hauwaert