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A coffer (or coffering) in
architecture Architecture is the art and technique of designing and building, as distinguished from the skills associated with construction. It is both the process and the product of sketching, conceiving, planning, designing, and constructing buildings ...
is a series of sunken panels in the shape of a square, rectangle, or
octagon In geometry, an octagon (from the Greek ὀκτάγωνον ''oktágōnon'', "eight angles") is an eight-sided polygon or 8-gon. A '' regular octagon'' has Schläfli symbol and can also be constructed as a quasiregular truncated square, t, w ...
in a
ceiling A ceiling is an overhead interior surface that covers the upper limits of a room. It is not generally considered a structural element, but a finished surface concealing the underside of the roof structure or the floor of a story above. Ceilings ...
,
soffit A soffit is an exterior or interior architectural feature, generally the horizontal, aloft underside of any construction element. Its archetypal form, sometimes incorporating or implying the projection of beams, is the underside of eaves (t ...
or vault. A series of these sunken panels was often used as decoration for a ceiling or a vault, also called ''caissons'' ("boxes"), or ''lacunaria'' ("spaces, openings"), so that a coffered ceiling can be called a ''lacunar'' ceiling: the strength of the structure is in the framework of the coffers.


History

The stone coffers of the
ancient Greeks Ancient Greece ( el, Ἑλλάς, Hellás) was a northeastern Mediterranean civilization, existing from the Greek Dark Ages of the 12th–9th centuries BC to the end of classical antiquity ( AD 600), that comprised a loose collection of cult ...
and Romans are the earliest surviving examples, but a seventh-century BC Etruscan chamber tomb in the necropolis of San Giuliano, which is cut in soft tufa-like stone reproduces a ceiling with beams and cross-beams lying on them, with flat panels filling the ''lacunae''. For centuries, it was thought that wooden coffers were first made by crossing the wooden beams of a ceiling in the Loire Valley
château A château (; plural: châteaux) is a manor house or residence of the lord of the manor, or a fine country house of nobility or gentry, with or without fortifications, originally, and still most frequently, in French-speaking regions. No ...
x of the early Renaissance. In 2012, however, archaeologists working under the Packard Humanities Institute at the House of the Telephus in
Herculaneum Herculaneum (; Neapolitan and it, Ercolano) was an ancient town, located in the modern-day ''comune'' of Ercolano, Campania, Italy. Herculaneum was buried under volcanic ash and pumice in the eruption of Mount Vesuvius in AD 79. Like the n ...
discovered that wooden coffered ceilings were constructed in Roman times. Experimentation with the possible shapes in coffering, which solve problems of mathematical tiling, or tessellation, were a feature of
Islamic Islam (; ar, ۘالِإسلَام, , ) is an Abrahamic monotheistic religion centred primarily around the Quran, a religious text considered by Muslims to be the direct word of God (or '' Allah'') as it was revealed to Muhammad, the ma ...
as well as
Renaissance architecture Renaissance architecture is the European architecture of the period between the early 15th and early 16th centuries in different regions, demonstrating a conscious revival and development of certain elements of ancient Greek and Roman thought ...
. The more complicated problems of diminishing the scale of the individual coffers were presented by the requirements of curved surfaces of vaults and domes. A prominent example of Roman coffering, employed to lighten the weight of the dome, can be found in the ceiling of the rotunda
dome A dome () is an architectural element similar to the hollow upper half of a sphere. There is significant overlap with the term cupola, which may also refer to a dome or a structure on top of a dome. The precise definition of a dome has been a m ...
in the
Pantheon, Rome The Pantheon (, ; la, Pantheum,Although the spelling ''Pantheon'' is standard in English, only ''Pantheum'' is found in classical Latin; see, for example, Pliny, '' Natural History'36.38 "Agrippas Pantheum decoravit Diogenes Atheniensis". Se ...
.


Asian architecture

In
ancient Chinese wooden architecture Ancient Chinese wooden architecture is a style of Chinese architecture. In the West it has been studied less than other architectural styles. Although Chinese architectural history reaches far back in time, descriptions of Chinese architecture are ...
, coffering is known as ''zaojing'' ().


Gallery

File:7530vik Wawel. Foto Barbara Maliszewska.jpg, Coffered
plafond A plafond (French for "ceiling"), in a broad sense, is a (flat, vaulted or dome) ceiling. A plafond can be a product of monumental painting or sculpture. Picturesque plafonds can be painted directly on plaster (as a fresco, oil, glutinous, sy ...
at
Wawel Castle The Wawel Royal Castle (; ''Zamek Królewski na Wawelu'') and the Wawel Hill on which it sits constitute the most historically and culturally significant site in Poland. A fortified residency on the Vistula River in Kraków, it was established ...
,
Kraków Kraków (), or Cracow, is the second-largest and one of the oldest cities in Poland. Situated on the Vistula, Vistula River in Lesser Poland Voivodeship, the city dates back to the seventh century. Kraków was the official capital of Poland un ...
, Poland File:Palazzo Vecchio - Sala dell'Udienza - ceilings.jpg, Coffered ceiling of the Sala dell'Udienza, in the
Palazzo Vecchio The Palazzo Vecchio ( "Old Palace") is the town hall of Florence, Italy. It overlooks the Piazza della Signoria, which holds a copy of Michelangelo's ''David'' statue, and the gallery of statues in the adjacent Loggia dei Lanzi. Originally ...
in Florence File:Chapelle Expiatoire 1, Paris 2010.jpg, Chapelle Expiatoire, Paris File:Ceiling SM Maggiore.jpg,
Giuliano da Sangallo Giuliano da Sangallo (c. 1445 – 1516) was an Italian sculptor, architect and military engineer active during the Italian Renaissance. He is known primarily for being the favored architect of Lorenzo de' Medici, his patron. In this role, Giu ...
's flat caisson ceiling from
Basilica di Santa Maria Maggiore The Basilica of Saint Mary Major ( it, Basilica di Santa Maria Maggiore, ; la, Basilica Sanctae Mariae Maioris), or church of Santa Maria Maggiore, is a Major papal basilica as well as one of the Seven Pilgrim Churches of Rome and the large ...
, Rome File:Coffered ceilings of Mir Castle.jpg, Coffered ceilings of Mir Castle,
Belarus Belarus,, , ; alternatively and formerly known as Byelorussia (from Russian ). officially the Republic of Belarus,; rus, Республика Беларусь, Respublika Belarus. is a landlocked country in Eastern Europe. It is bordered by ...
File:Chancel ceiling, Church of the Good Shepherd.jpg, Chancel ceiling, Church of the Good Shepherd (Rosemont, Pennsylvania) File:L'Enfant Plaza station from north mezzanine, March 2019.jpg, Coffered ceiling typical of stations on the
Washington Metro The Washington Metro (or simply Metro), formally the Metrorail,Google Books search/preview
(Washington, DC)


See also

*
Dome A dome () is an architectural element similar to the hollow upper half of a sphere. There is significant overlap with the term cupola, which may also refer to a dome or a structure on top of a dome. The precise definition of a dome has been a m ...
*
Dropped ceiling A dropped ceiling is a secondary ceiling, hung below the main (structural) ceiling. It may also be referred to as a drop ceiling, T-bar ceiling, false ceiling, suspended ceiling, grid ceiling, drop in ceiling, drop out ceiling, or ceiling tile ...
* Cove ceiling * Beam ceiling


Footnotes


External links


U.S. National Capitol
{{Authority control Ceilings Architectural elements