The intercolumniation of 2.25 diameters is known as what?

• A. Eustyle
• B. Pycnostyle
• C. Areostyle
• D. Systyle

Answer: (A)

Intercolumniation is the space between adjacent columns, measured in the column’s diameter. An intercolumniation of about 2.25 diameters is described as eustyle, a moderate, balanced spacing that creates a harmonious rhythm along a façade. This term comes from Greek roots meaning a “true/harmonious column,” conveying the idea of a well-proportioned gap that looks right to the eye. Pycnostyle, by contrast, uses a tighter spacing, giving a more compact and dense look. Systyle refers to a standard, regular spacing, not as tight as pycnostyle but not as wide as areostyle. Areostyle describes a wider-than-usual spacing with more generous gaps. So, 2.25d fits the eustyle category because it represents that moderate, aesthetically balanced spacing.