Prairie-style architecture orginated at the turn of the twentieth century. Often associated with Frank Lloyd Wright, prairie-style houses were partly derived from Asian sources and inspired by the flat landscape of the American Midwest. They frequently employed natural organic materials and developed new concepts of interior space. The typical prairie-style house plan has sweeping horizontal lines and wide open floor plans. Other common features of this style include broad overhanging eaves, rows of small casement windows, one-story projections, and in many cases a central chimney.

Prairie Style Mouldings

Prairie style mouldings tend to be used in linear arrangements to emphasize the horizontality of the architecture and to delineate the structural system. They are usually a combination of S4S shapes with sharp edges and corners in complex geometric designs.