Entablature being called petrification. The structure of the entablature varies with the three classical orders: Doric, Ionic, and Corinthian. In each, the proportions of the subdivisions (architrave, frieze, cornice) are defined by the proportions of the column in the order. In Roman and Renaissance interpretations, it is usually approximately a quarter of the height of the column. Variants of entablature that do not fit these models are usually derived from them. Pure classical Doric entablature is simple. The architrave, the lowest band, is split, from bottom to top, into the guttae, the regulae, and the taenia. The frieze is dominated by
Department of Lands building Street, and two others in Gresham Street (one originally used for carriage). The façades are of dressed Pyrmont sandstone with cornices and balusters at each floor level, with a dome and tower tops made from copper. The four façades are all richly decorated with classical motifs and statuettes and are dissimilar to each other. Barnet’s mix of the orders and their integration into the building is significant. For example, the lowest level of the building is adorned with Doric and Ionic pilasters, whereas Corinthian and Ionic ones are used above. The clock tower has an 'onion' copper dome which was