Grille (architecture)#Grillwork

In heating, cooling, ventilation, or a combination thereof, a grille is a perforated cover for an air duct. Grilles sometimes have louvers which allow the flow of air to be directed.

A register differs from a grille in that a damper is included.{{sfn|Sugarman|2005|page=132}}{{sfn|Haines|Wilson|2003|page=129}} However, in practice, the terms "grille", "register", and "return" are often used interchangeably, and care must be taken to determine the meaning of the term used.{{sfn|Haines|Wilson|2003|page=129}}{{sfn|Dearborn Home Inspection|2003|page=80}}

Grillwork is decorative grating of metal, wood, stone, or other material used as a screen, divider, barrier, or as a purely decorative element. It may function as a window, either with or without glazing. Grillwork may also refer to grilles, decorative front ends of motor vehicles. Grillwork is sometimes referred to as simply as a grill or as grille, but the latter terms do not convey a decorative quality. These words are all derived from the Old French {{lang|fro|greille}}.

Other terms are used to refer to such decorative work. If the screen is made from iron, the term ironwork is often used. The term in Spanish, reja can also refer to metal fences. If the screen is made from cutouts of wood, the term fretwork is also used.{{Cite book|last=Southworth|first=Susan|first2=Michael|last2=Southworth|url=http://worldcat.org/oclc/1159783176|title=Ornamental ironwork : an illustrated guide to its design, history and use in American architecture|date=1992|publisher=McGraw-Hill|isbn=0-07-059804-5|oclc=1159783176}}

File:Summer Garden grille.jpg|The 18th-century fence of Summer Garden in St. Petersburg is a recurring subject in Russian poetry and art.

Image:Spanish 17th century wrought iron and bronze grillwork by Francisco Gonzales, Spanish, Metropolitan Museum of Art.JPG|Spanish 17th century wrought iron and bronze grillwork by Francisco Gonzales, Metropolitan Museum of Art

Image:Early 20th century American grillwork, anonymous, Honolulu Academy of Arts.jpg|Early 20th-century American grillwork, anonymous, Honolulu Museum of Art

Image:Architectural stone Grillwork from a house in northern India, Rajput Dynasty, 17th-18th century, Honolulu Academy of Arts.jpg|Architectural stone grillwork from a house in northern India, Rajput Dynasty, 17th-18th century, Honolulu Museum of Art

File:Entrance to Marin County Center, 1963.jpg|Marin County, California, Civic Center, 1963.

• Register (air and heating)

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• {{cite book |author=Dearborn Home Inspection |title=Principles of Home Inspection |location=Chicago |publisher=Dearborn Home Inspection |date=2003 |isbn=9780793179510}}
• {{cite book |last1=Haines |first1=Roger W. |last2=Wilson |first2=C. Lewis |title=HVAC Systems Design Handbook |location=New York |publisher=McGraw-Hill |date=2003 |isbn=9780071395861}}
• {{cite book |last=Sugarman |first=Samuel C. |title=HVAC Fundamentals |location=Lilburn, Ga. |publisher=Fairmont Press |date=2005 |isbn=9780881734898}}

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{{Commons category|Grilles (architecture)}}

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Category:Architectural elements