Columns are vertical support members subjected to compressive loads. They are also referred to as pillars, posts, stanchions and struts.

Picture of columns made from various materials such as stone, brick, concrete, wood and steel.

The most efficient shape for a column is the circular hollow section (CHS).

The second most efficient shape is the square hollow section (SHS).

Picture of a circular hollow section and square hollow section

Circular hollow section (CHS)        Square hollow section (SHS)