Abstract: A furniture system for fitting-out a building room of the type having a generally open plan and having an associated floor surface includes an overhead framework including a plurality of horizontal beam segments interconnected to form a rigid structure configured to be spaced above the floor surface. A plurality of support columns, each has an upper portion connected with the overhead framework, and a lower portion shaped to abut the floor surface to support the overhead framework in a freestanding fashion at a predetermined elevation above average user height. Each of the support columns further includes at least three vertical edges defining substantially planar faces therebetween. At least two of the vertical edges have a plurality of slots therein for supporting office furniture items and office accessories. A shelf is mounted to one of the support columns and is supported thereon.