All associations or subordinated associations of each country in Europe, who acknowledge the articles of association and constitute a representative agency of the manufacturer of prefabricated houses, can become members of EFV. The emphasis of the member associations and their work is on prefabricated timber construction.

Associations applying for EFV membership must have own quality rules and must ensure these rules application will be monitored by independent institutes. The European prefabrication guidelines of EFV have to be abided by the members. Another condition is the willingness to exchange knowledge on an international level.

Associations and institutions close to prefabricated timber-constructions can join the association as a supporting member without a right to vote.