Columns with round shafts that are attached to or partially embedded in a wall and that reflect the Doric order. Generally, it is a stoutly proportioned column with a simple, round capital.

Columns with round shafts that are attached to or partially embedded in a wall and that reflect the Ionic order. Generally, it is a more slender column, and its capitals are recognized by two scrolling volutes.

Columns with round shafts that are attached to or partially embedded in a wall and that reflect the Corinthian order. Generally, it is the most slender column of all the orders, and its capital is the most ornate, with layers of stylized acanthus leaves.