{{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 buildings|brick nog}} In construction, a '''dwang''' (Scotland and 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 and Australia; all derived from 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), is a horizontal bracing piece used between wall studs 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 in compression they provide no bracing effect in shear, which requires diagonal bracing to stop the frame racking.
The interval between noggings is dictated by local building codes and by the type of timber used; a typical timber-framed house 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 lintels, sills and jack studs to form openings.
Joist bridging, or blocking, is used between floor or ceiling joists, but this is to prevent the joists from twisting or rotating under load 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) *Carpentry
Category:Building engineering Category:Structural system Category:Carpentry
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