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 construction, constructi ...

is a series of sunken panels in the shape of a square, rectangle, or

octagon In geometry, an octagon () 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, which alternates two types of edges. A truncated octagon, t is a ...

in a

ceiling A ceiling is an overhead interior roof 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 can ...

soffit A soffit is an exterior architectural feature, generally the horizontal, aloft underside of the roof edge. Its archetypal form, sometimes incorporating or implying the projection of rafters or trusses over the exterior of supporting walls, is 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 () was a northeastern Mediterranean civilization, existing from the Greek Dark Ages of the 12th–9th centuries BC to the end of classical antiquity (), that comprised a loose collection of culturally and linguistically re ...

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 palace, 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 re ...

x of the

early Renaissance Renaissance art (1350 – 1620) is the painting, sculpture, and decorative arts of the period of European history known as the Renaissance, which emerged as a distinct style in Italy in about AD 1400, in parallel with developments which occurr ...

. In 2012, however, archaeologists working under the Packard Humanities Institute at the House of the Telephus in

Herculaneum Herculaneum is an ancient Rome, ancient Roman town located in the modern-day ''comune'' of Ercolano, Campania, Italy. Herculaneum was buried under a massive pyroclastic flow in the eruption of Mount Vesuvius in 79 AD. Like the nearby city of ...

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 is an Abrahamic religions, Abrahamic monotheistic religion based on the Quran, and the teachings of Muhammad. Adherents of Islam are called Muslims, who are estimated to number Islam by country, 2 billion worldwide and are the world ...

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 Greece, ancient Greek and ...

. 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 (, ; ,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". See also ''Oxfor ...

. Coffered ceilings were used in cathedrals starting with

St Mark's Basilica The Patriarchal Cathedral Basilica of Saint Mark (), commonly known as St Mark's Basilica (; ), is the cathedral church of the Patriarchate of Venice; it became the episcopal seat of the Patriarch of Venice in 1807, replacing the earlier cath ...

and

Santa Maria Maggiore Santa Maria Maggiore (), also known as the Basilica of Saint Mary Major or the Basilica of Saint Mary the Great, is one of the four Basilicas in the Catholic Church#Major and papal basilicas, major papal basilicas and one of the Seven Pilgrim C ...

. They spread following the reforms of the

Council of Trent The Council of Trent (), held between 1545 and 1563 in Trent (or Trento), now in northern Italy, was the 19th ecumenical council of the Catholic Church. Prompted by the Protestant Reformation at the time, it has been described as the "most ...

, as the improved acoustics and opportunity to include statues, apostolic heraldry and other religious elements in compositions with versatile shapes was thought to enhance the doctrinal purpose of a cathedral.

Asian architecture

In ancient Chinese wooden architecture, coffering is known as ''zaojing'' ().

Gallery

File:7530vik Wawel. Foto Barbara Maliszewska.jpg, Coffered plafond 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 o ...

Kraków , officially the Royal Capital City of Kraków, is the List of cities and towns in Poland, second-largest and one of the oldest cities in Poland. Situated on the Vistula River in Lesser Poland Voivodeship, the city has a population of 804,237 ...

, Poland File:Palazzo Vecchio - Sala dell'Udienza - ceilings.jpg, Coffered ceiling of the Sala dell'Udienza, in the

Palazzo Vecchio The ( "Old Palace") is the town hall of Florence, Italy. It overlooks the , which holds a copy of Michelangelo's ''David'' statue, and the gallery of statues in the adjacent Loggia dei Lanzi. Originally called the ''Palazzo della Signoria'', a ...

in Florence File:Chapelle Expiatoire 1, Paris 2010.jpg, Chapelle Expiatoire, Paris File:Ceiling SM Maggiore.jpg, Giuliano da Sangallo's flat caisson ceiling from

Basilica di Santa Maria Maggiore Santa Maria Maggiore (), also known as the Basilica of Saint Mary Major or the Basilica of Saint Mary the Great, is one of the four major papal basilicas and one of the Seven Pilgrim Churches of Rome. The largest Marian church in Rome, it is ...

, Rome File:Coffered ceilings of Mir Castle.jpg, Coffered ceilings of Mir Castle,

Belarus Belarus, officially the Republic of Belarus, is a landlocked country in Eastern Europe. It is bordered by Russia to the east and northeast, Ukraine to the south, Poland to the west, and Lithuania and Latvia to the northwest. Belarus spans an a ...

File:Chancel ceiling, Church of the Good Shepherd.jpg, Chancel ceiling, Church of the Good Shepherd (Rosemont, Pennsylvania) File:Viktor Kovačić - Palača burze u Zagrebu - predvorje (vestibul) - kasetirani svod.jpg, Coffered ceiling, Stock Exchange Pallace,

Zagreb Zagreb ( ) is the capital (political), capital and List of cities and towns in Croatia#List of cities and towns, largest city of Croatia. It is in the Northern Croatia, north of the country, along the Sava river, at the southern slopes of the ...

File:L'Enfant Plaza station from north mezzanine, March 2019.jpg, Coffered ceiling typical of stations on the

Washington Metro The Washington Metro, often abbreviated as the Metro and formally the Metrorail, is a rapid transit system serving the Washington metropolitan area of the United States. It is administered by the Washington Metropolitan Area Transit Authority ...

(Washington, DC)

Footnotes

External links

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