Abstract: The structure of an office furnishing system is constituted by a plurality of modular elements which can be interconnected in various possible configurations, the same basic elements being usable to form work stations as well as partition walls and screens, integrated into a harmonious unit. Each modular element includes a framework of upright members and cross members interconnected together. Each upright member and each cross member is formed from two parallel, profiled, metal sections spaced apart and interconnected by in at least two regions by first and second connectors respectively. The first and second connectors have complementary engaging surfaces for quickly connecting the cross members to the upright members.