Here are entered works on outdoor mural painting decorating buildings in public thoroughfares and often drawing attention to contemporary urban problems such as drugs, minorities, police brutality, etc. General works on painting on wall surfaces are entered under Mural painting and decoration. Works on drawing on wall surfaces emphasizing the concept of drawing with the drawing usually visible for a limited period of time are entered under Wall drawing (Conceptual art).
Here are entered works on sheets or panels of various materials used as substitutes for wooden boards or plaster in the construction of interior walls and ceilings, including sheets or panels of plywood, fiberboard, gypsum drywall, and laminated plastics. Works on sheets or panels of wallboard made with a gypsum core covered with paper are entered under Drywall.