INTERCOLUMNIATIONS

Intercolumniations are said to be the measurements of the space between columns in a colonade starting from the bottom of their shafts.

intercolumniation was determined from a system codified by the 1st-century bc Roman architect Vitruvius.

Pycnostyle

One and a half diameters

Systyle

Two diameters

Eustyle

Two and a quarter diameters, considered by Vitruvius to be the best proportion

Diastyle

Three diameters

Araeostyle

Four or more diameters, requiring a wooden architrave rather than one of stone

Araeosystyle

Alternating araeostyle and systyle