# Dwang

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{{Short description|Bracing piece used between wall studs}}
{{For-multi|the Guang language of Ghana|Dwang language|the term nogging used for infill in [timber-framed](/source/timber_framing) buildings|brick nog}}
In [construction](/source/construction), a '''dwang''' ([Scotland](/source/Scotland) and [New Zealand](/source/New_Zealand)),<ref>"Dwang" def. 1. Cryer, Max. ''The Godzone dictionary of favourite New Zealand words and phrases''. Auckland [N.Z.: Exisle Pub., 2006. 62. Print.</ref><ref>{{cite web|url=http://www.thefreedictionary.com/noggings|work=Free dictionary|accessdate=1 January 2012|title=Nogging}}</ref><ref>{{Cite book |last1=Coxhead |first1=Averil |title=English for Vocational Purposes: Language Use in Trades Education |last2=Parkinson |first2=Jean |last3=Mackay |first3=James |last4=McLaughlin |first4=Emma |publisher=Routledge |year=2019 |isbn=978-0-429-83216-1 |location=Oxon |author-link1=Averil Coxhead}}</ref> '''nogging piece''', '''nogging''', '''noggin''' or '''nog''' ([England](/source/England) and [Australia](/source/Australia); all derived from [brick nog](/source/brick_nog)),<ref name="Fleming" >Fleming, Eric. ''Construction technology: an illustrated introduction''. Oxford: Blackwell, 2005. 123, 160. Print.</ref><ref>Loudon, J. C.. [https://books.google.com/books?id=UVYpAAAAYAAJ ''An encyclopaedia of cottage, farm, and villa architecture and furniture: containing numerous designs for dwellings, from the cottage to the villa, including farm houses, farmeries, and other agricultural buildings, several designs for country inns, public'']. London: Longman, Rees, Orme, Brown, Green & Longman, 1833. 39. Print.</ref> or '''blocking''' ([North America](/source/North_America)), is a horizontal bracing piece used between [wall stud](/source/wall_stud)s to give rigidity to the wall frames of a building. Noggings may be made of timber, steel, or aluminium.{{Citation needed|date=June 2021}} If made of timber they are cut slightly longer than the space they fit into and are driven tightly into place or rabbeted into the wall stud.<ref>{{Cite book|last=Tolson|first=Simon|title=Dictionary of Construction Terms|publisher=Routledge|year=2014|isbn=978-1-843-11794-0|location=Oxon|pages=267}}</ref> Although noggings between vertical studs brace the studs against [buckling](/source/buckling) in compression they provide no bracing effect in [shear](/source/shear_stress), which requires diagonal bracing to stop the frame racking.

The interval between noggings is dictated by local [building code](/source/building_code)s and by the type of timber used; a typical [timber-framed house](/source/Timber_framing) in a non-cyclonic area will have two or three noggings per storey between studs.  Additional noggings may be added as grounds for later fixings and are supplemented by [lintel](/source/lintel)s, [sills](/source/window_sill) and jack studs to form openings.

Joist bridging, or [blocking](/source/Blocking_(construction)), is used between floor or ceiling joists, but this is to prevent the joists from [twisting or rotating under load](/source/buckling) rather than to prevent buckling in compression. Herringbone strutting may replace blocking with smaller, timber battens fixed diagonally, in pairs, between joists. <ref>{{Cite book|last1=Marshall|first1=Duncan|title=The Construction of Houses|last2=Worthing|first2=Derek|last3=Dann|first3=Nigel|last4=Heath|first4=Roger|publisher=Routledge|year=2013|isbn=978-0-415-53817-6|location=Oxon|pages=127|language=en}}</ref>

==References==
<references />

==See also==
* [Blocking (construction)](/source/Blocking_(construction))
*[Carpentry](/source/Carpentry)

Category:Building engineering
Category:Structural system
Category:Carpentry

{{Architecture-stub}}

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