Quoin

Structural quoins on a limestone rubble wall

Quoins are the cornerstones of brick or stone walls.^[1] Quoins may be structural, or may be decorative. Architects and builders use quoins to give the impression of strength and firmness to the outline of a building. Rough-finished or rusticated masonry is also frequently used for foundation layers of buildings to give the same impression.

Quoinage can be carried out in stone on a stone building, with stone on a predominantly brick building, or by laying brick masonry to give the appearance of blocks at the corner. If structural, quoins are usually part of load bearing walls; if decorative, they may be made of a variety of materials including brick, stone and wood. The most common form of decorative use for a quoins uses an alternative pattern of rectangles that wrap around the wall, mimicking the pattern of stone blocks or brick as they would wrap around a corner and thus join the two walls. In Georgian architecture, wooden quoins were most often part of an overall theme to imply stone, and thus permanence.

References

External links

•  "Quoins". Encyclopædia Britannica (11th ed.). 1911.