Impost (architecture)

In architecture, an impost or impost block is a projecting block resting on top of a column or embedded in a wall, serving as the base for the springer or lowest voussoir of an arch.[1][2]

1. Arch 2. Impost 3. Column

See alsoEdit


  1. ^ Toman, Rolf, ed. (2010). Gothic Architecture, Sculpture, Painting. Potsdam: H.F. Ullmann. p. 504. ISBN 978-3-8331-1038-2.
  2. ^ Sturgis, Russell (1901). A Dictionary of Architecture and Building, Volume II. New York: Macmillan. p. 464.