All six workers' clubs of this period differ in shape, size, and functional set. Melnikov's clients (the unions) were not competent in exact functions of these buildings, thus each Melnikov draft is also a functional program with different balance between main hall and other space. The club, according to Melnikov, is not a single fixed theater hall, but a flexible system of different halls that may be united into a single, large volume when necessary. His larger main halls can be divided into three (Rusakov Club) or two (Svoboda Club) independent halls.