Drawings Available on The GBC CD-ROM . The roof is suspended from the underside of four steel plate girders which in turn are carried by eight exterior steel columns. Crown Hall, in which architecture, city planning, and design are taught, has a symmetrical plan about its short axis. Free-standing partitions at the height of the window muntins partially subdivide the space. Only two enclosed service ducts interrupt the ceiling.
Natural ventilation is provided by louvers at floor level.
Mies van der Rohe. The essence of space is not determined by the mere presence of limiting surfaces but by the spiritual principle of this limitation. Less is More. The concept would not become outmoded for two reasons. It is radical and conservative at once.