This modular system of office furnishing components is characterized by a high level of compositional flexibility, permitting customization of every type of office space in a highly original manner. It consists of an articulated family of containers and worktops that can be freely combined, somewhat like a toy construction set, to create unique compositions that meet the specific needs of a variety of work environments. Cases represents an entirely new approach to office furnishing with respect to conventional systems. The ample and varied choice of elements, materials, finishes and colors can be put together in many different ways.