Barrel vault

A barrel vault, also known as a tunnel vault or a wagon vault, is a type of ceiling. It is an architectural element formed by the extension of a simple arch.^[1] It forms the shape of a semicircle over parallel walls.^[1]

References

↑ ^1.0 ^1.1 Fred Kleiner, Gardner's Art through the Ages: The Western Perspective, Volume 1 (Australia; United States: Wadsworth/Cengage Learning, 2010), p. 161

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[Kleiner161-1] 1.0 ^1.1 Fred Kleiner, Gardner's Art through the Ages: The Western Perspective, Volume 1 (Australia; United States: Wadsworth/Cengage Learning, 2010), p. 161

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