Abstract: A modular office furniture system of hexagonal configuration is disclosed provided by walls formed from detachably interconnected posts, beams and panels. The hexagonal configuration provides efficient work space for workers and is laid out on a simple equilateral triangular grid. There can be anything from a single module to a multiplicity of modules arranged in groups or clusters. Visual and acoustic privacy is provided by acoustical panels, stackable one on top of the other and slidable into grooves on spaced apart posts. The posts have a lower portion to which there is attached a beam and such beam is grooved to receive an edge portion of the panel that provides the work surface. File and storage systems and shelves are mounted on the acoustical pad panels. Provision for electrical and communication wiring is provided in concealed channels through the beams and hexagonal posts. Hexagonal shaped ambient light fixtures are mounted on selected posts.