The free plan, as it relates to architecture

Architecture

Architecture is both the process and product of planning, designing and construction. Architectural works, in the material form of buildings, are often perceived as cultural and political symbols and as works of art...

 refers to an open plan

Open plan

Open plan is the generic term used in architectural and interior design for any floor plan which makes use of large, open spaces and minimizes the use of small, enclosed rooms such as private offices...

 with non load-bearing partitions dividing interior space. In this structural system, the building structure is separate of interior partitions. This is made possible by the elimination of interior load-bearing walls, by moving the structure of the building to the exterior, or by having columns that are free from space dividing partitions.

One famous example of free plan is S.R. Crown Hall

S.R. Crown Hall

S. R. Crown Hall, designed by the German-born Modernist architect Ludwig Mies van der Rohe, is the home of the College of Architecture at the Illinois Institute of Technology in Chicago, Illinois.-History:...

 in Chicago

Chicago

Chicago is the largest city in the US state of Illinois. With nearly 2.7 million residents, it is the most populous city in the Midwestern United States and the third most populous in the US, after New York City and Los Angeles...

, Illinois

Illinois

Illinois is the fifth-most populous state of the United States of America, and is often noted for being a microcosm of the entire country. With Chicago in the northeast, small industrial cities and great agricultural productivity in central and northern Illinois, and natural resources like coal,...

.