Classical order Classical order An order in architecture is a certain assemblage of parts subject to uniform established proportions, regulated by the office that each part has to perform. Coming down to the present from Ancient Greek and Ancient Roman civilization, the architectural orders are the styles of classical architecture, each distinguished by its proportions and characteristic profiles and details, and most readily recognizable by the type of column employed. The three orders of architecture—the Doric, Ionic, and Corinthian—originated in Greece. To these the Romans added, in practice if not in name, the Tuscan, which they made simpler than Doric, and the
The Five Orders of Architecture five orders, with indication of their shadows and the first principles of construction"; "The Five Orders of Architecture according to Giacomo Barozzio of Vignola, to Which are Added the Greek Orders"; and "The five orders of architecture, the casting of shadows and the first principles of construction based on the system of Vignola". The book tackles the five orders, Tuscan, Doric, Ionic, Corinthian, and Composite in separate sections, each subdivided in five parts on the colonnade, arcade, arcade with pedestal, individual pedestals, and entablatures and capitals. Following those 25 sections were some less related parts on cornices and other elements.