Column cylindrical disks of alternating diameter. The shaft is almost never fluted. The proportions vary, but are generally similar to Doric columns. Height to width ratio is about 7:1. The Ionic column is considerably more complex than the Doric or Tuscan. It usually has a base and the shaft is often fluted (it has grooves carved up its length). The capital features a volute, an ornament shaped like a scroll, at the four corners. The height-to-thickness ratio is around 9:1. Due to the more refined proportions and scroll capitals, the Ionic column is sometimes associated with academic buildings. Ionic style columns
Tuscan order frontage is a careful exercise in revivalism, there are minimal plain bases to the thick fluted columns and, despite having metope reliefs and a large group of sculpture in the pediment, there are no triglyphs or guttae. Nonetheless, despite these "Tuscan" aspects, the overall impression is strongly Greek and it is rightly always described as "Doric". Tuscan is often used for doorways and other entrances where only a pair of columns are required, and using another order might seem pretentious. Because the Tuscan mode is easily worked up by a carpenter with a few planing tools, it became part of