In classical architecture, a pilaster is a rectangular support that resembles a flat column. It includes the usual features of a classical column; a capital at the top, the shaft of the column itself, a base and a plinth, but it usually only projects a third of its width or less from the wall.
Pilasters are traditionally used for decorative rather than structural purposes, often as a means of breaking up an otherwise empty expanse of wall. As with columns, different classical orders can be represented, and the surface of a pilaster can be left plain or can be fluted.
 Related articles on Designing Buildings Wiki
- Barrel vault.
- Classical orders in architecture.
- Cornice coving and architrave definitions.
- Elements of classical columns.
- Italian Renaissance revival style.
- Trompe l’oeil.
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