Understanding Cornice
The cornice has deep roots in classical architecture, originating as the projecting top section of an entablature in Greek and Roman temples — the horizontal band that extends beyond the wall to shed rainwater. In architecture, the cornice remains the uppermost horizontal molding on the exterior of a building. Interiors borrowed the term for elaborate ceiling moldings, particularly built-up multi-piece installations that project further from the wall than simple crown molding. The window cornice (or cornice board) is a separate concept: a structured, box-like treatment mounted above a window to conceal curtain rods, tracks, and the top of window treatments. Window cornices can be upholstered in fabric, painted wood, or elaborately carved. They add a tailored, finished look to window treatments and are making a strong comeback in current interior design.
Cornice in Interior Design
In ceiling applications, cornices add architectural gravitas — they are the heavier, more elaborate cousin of crown molding, appropriate for formal living rooms, dining rooms, and entryways in traditional, neoclassical, and art deco interiors. Plaster cornices with egg-and-dart, dentil, or acanthus leaf detailing are hallmarks of Georgian and Victorian homes. Modern cornices use cleaner geometric profiles. For windows, upholstered cornice boards are experiencing a revival as designers seek structured alternatives to soft valances. A fabric-covered cornice board adds a tailored, architectural look to drapes and can tie in the room's textile pattern or color palette. Cornices also serve a practical purpose, hiding imperfect window head heights and making windows appear taller when mounted above the frame.
