Classical buildings, particularly temples, are classified by a number of criteria. The terminology was recorded by a Roman architect named Vitruvius, who wrote De Architectura during the reign of the Emperor Augustus.
Note - Many of these terms use the suffix "-style". This does not refer to style in the English sense, but comes from the Greek term "stulos", meaning column.
The categories for classification are
- what order of column is used
- how far around the building the columns go
- how many columns there are across the front of the building
- how many rows of columns there are in front of the building
- how far apart the columns are
What order of column is used?
Frankly, Roadmaker did such a brilliant job on the orders of columns that the best I can do is refer you to this node.
How far around the building do the columns go?
peripteral - Columns go all around the building.
o o o o o o
o _____ o
o | | o
o | | o
o | | o
o |_____| o
o o
o o o o o o
pseudo-peripteral - Columns look like they go all the way around, but are actually half-columns, or pilasters, at the sides and back.
o o o o o o
o_________o
d p
d p
d p
d p
d p
o-u-u-u-u-o
peripteral sine postico - Columns go around three sides of the building, with a solid back wall.
o o o o o o
o _____ o
o | | o
o | | o
o | | o
o | | o
o | | o
o |_____| o
- apteral - There are columns on one or both ends of the building, but none on the sides. This is divided into two types:
prostyle - Columns at the front of the building only.
o o o o o o
o_________o
| |
| |
| |
| |
| |
|_________|
amphiprostyle - Columns at the front and back of the building only.
o o o o o o
o_________o
| |
| |
| |
|_________|
o o
o o o o o o
How many columns are there across the front of the building?
- tetrastyle - Four columns across the front.
- hexastyle - Six columns across the front (all of the illustrations above are hexastyle).
- octostyle - Eight columns across the front.
- decastyle - Ten columns across the front.
How many rows of columns are there across the front of the building?
- monopteral - One row of columns. Note that monopteral is also used to refer to a round building surrounded by columns.
o o o o o o
o o o o o _____ o
o ___ o o | | o
o / \ o o | | o
o \___/ o o | | o
o o o |_____| o
o o o o o o
o o o o o o
(Both of these buildings are monopteral)
- dipteral - Two rows of columns.
o o o o o o
o o o o o o
o |-----| o
o | | o
o | | o
o | | o
o |_____| o
o o o o o o
- pseudo-dipteral - Space left for two rows of columns, but only one row actually in place.
o o o o o o
o o
o |-----| o
o | | o
o | | o
o | | o
o |_____| o
o o o o o o
How many far apart are the columns?
- pycnostyle - Columns 1.5 column widths apart.
This was often used to make a temple seem taller than it was, but made movement into the building feel cramped.
- systyle - Columns 2 column widths apart.
- eustyle - Columns 2.25 column widths apart.
This was felt to be the best intercolumnial distance (its name literally means "good column")
- diastyle - Columns 3 column widths apart.
- araeostyle - Columns more than 3 column widths apart.
This level of intercolumniation required extra support, usually of timber.
So now you too can say things like, "Not bad for a hexastyle peripteral building, but I prefer my Ionic temples to be dipteral if they aren't eustyle."