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Available in 41 languages" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-41" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">41 languages</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D9%83%D8%AA%D9%81_(%D8%B9%D9%85%D8%A7%D8%B1%D8%A9)" title="كتف (عمارة) – Arabic" lang="ar" hreflang="ar" data-title="كتف (عمارة)" data-language-autonym="العربية" data-language-local-name="Arabic" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-be mw-list-item"><a href="https://be.wikipedia.org/wiki/%D0%9A%D0%BE%D0%BD%D1%82%D1%80%D1%84%D0%BE%D1%80%D1%81" title="Контрфорс – Belarusian" lang="be" hreflang="be" data-title="Контрфорс" data-language-autonym="Беларуская" data-language-local-name="Belarusian" class="interlanguage-link-target"><span>Беларуская</span></a></li><li class="interlanguage-link interwiki-be-x-old mw-list-item"><a href="https://be-tarask.wikipedia.org/wiki/%D0%9A%D0%B0%D0%BD%D1%82%D1%80%D0%B0%D1%84%D0%BE%D1%80%D1%81" title="Кантрафорс – Belarusian (Taraškievica orthography)" lang="be-tarask" hreflang="be-tarask" data-title="Кантрафорс" data-language-autonym="Беларуская (тарашкевіца)" data-language-local-name="Belarusian (Taraškievica orthography)" class="interlanguage-link-target"><span>Беларуская (тарашкевіца)</span></a></li><li class="interlanguage-link interwiki-bg mw-list-item"><a href="https://bg.wikipedia.org/wiki/%D0%9A%D0%BE%D0%BD%D1%82%D1%80%D0%B0%D1%84%D0%BE%D1%80%D1%81" title="Контрафорс – Bulgarian" lang="bg" hreflang="bg" data-title="Контрафорс" data-language-autonym="Български" data-language-local-name="Bulgarian" class="interlanguage-link-target"><span>Български</span></a></li><li class="interlanguage-link interwiki-br mw-list-item"><a href="https://br.wikipedia.org/wiki/Harpell" title="Harpell – Breton" lang="br" hreflang="br" data-title="Harpell" data-language-autonym="Brezhoneg" data-language-local-name="Breton" class="interlanguage-link-target"><span>Brezhoneg</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/Contrafort" title="Contrafort – Catalan" lang="ca" hreflang="ca" data-title="Contrafort" data-language-autonym="Català" data-language-local-name="Catalan" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-da mw-list-item"><a href="https://da.wikipedia.org/wiki/Str%C3%A6bepille" title="Stræbepille – Danish" lang="da" hreflang="da" data-title="Stræbepille" data-language-autonym="Dansk" data-language-local-name="Danish" class="interlanguage-link-target"><span>Dansk</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/Strebepfeiler" title="Strebepfeiler – German" lang="de" hreflang="de" data-title="Strebepfeiler" data-language-autonym="Deutsch" data-language-local-name="German" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-et mw-list-item"><a href="https://et.wikipedia.org/wiki/Tugipiilar" title="Tugipiilar – Estonian" lang="et" hreflang="et" data-title="Tugipiilar" data-language-autonym="Eesti" data-language-local-name="Estonian" class="interlanguage-link-target"><span>Eesti</span></a></li><li class="interlanguage-link interwiki-el mw-list-item"><a href="https://el.wikipedia.org/wiki/%CE%91%CE%BD%CF%84%CE%B7%CF%81%CE%AF%CE%B4%CE%B1" title="Αντηρίδα – Greek" lang="el" hreflang="el" data-title="Αντηρίδα" data-language-autonym="Ελληνικά" data-language-local-name="Greek" class="interlanguage-link-target"><span>Ελληνικά</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Contrafuerte" title="Contrafuerte – Spanish" lang="es" hreflang="es" data-title="Contrafuerte" data-language-autonym="Español" data-language-local-name="Spanish" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-eo mw-list-item"><a href="https://eo.wikipedia.org/wiki/Kontra%C5%ADforto" title="Kontraŭforto – Esperanto" lang="eo" hreflang="eo" data-title="Kontraŭforto" data-language-autonym="Esperanto" data-language-local-name="Esperanto" class="interlanguage-link-target"><span>Esperanto</span></a></li><li class="interlanguage-link interwiki-eu mw-list-item"><a href="https://eu.wikipedia.org/wiki/Hormabular" title="Hormabular – Basque" lang="eu" hreflang="eu" data-title="Hormabular" data-language-autonym="Euskara" data-language-local-name="Basque" class="interlanguage-link-target"><span>Euskara</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%D9%BE%D8%B4%D8%AA%E2%80%8C%D8%A8%D9%86%D8%AF" title="پشت‌بند – Persian" lang="fa" hreflang="fa" data-title="پشت‌بند" data-language-autonym="فارسی" data-language-local-name="Persian" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/Contrefort" title="Contrefort – French" lang="fr" hreflang="fr" data-title="Contrefort" data-language-autonym="Français" data-language-local-name="French" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-ga mw-list-item"><a href="https://ga.wikipedia.org/wiki/Taca" title="Taca – Irish" lang="ga" hreflang="ga" data-title="Taca" data-language-autonym="Gaeilge" data-language-local-name="Irish" class="interlanguage-link-target"><span>Gaeilge</span></a></li><li class="interlanguage-link interwiki-gl mw-list-item"><a href="https://gl.wikipedia.org/wiki/Contraforte" title="Contraforte – Galician" lang="gl" hreflang="gl" data-title="Contraforte" data-language-autonym="Galego" data-language-local-name="Galician" class="interlanguage-link-target"><span>Galego</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EB%B2%84%ED%8A%B8%EB%A0%88%EC%8A%A4" title="버트레스 – Korean" lang="ko" hreflang="ko" data-title="버트레스" data-language-autonym="한국어" data-language-local-name="Korean" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-hy mw-list-item"><a href="https://hy.wikipedia.org/wiki/%D4%BF%D5%B8%D5%B6%D5%BF%D6%80%D6%86%D5%B8%D6%80%D5%BD" title="Կոնտրֆորս – Armenian" lang="hy" hreflang="hy" data-title="Կոնտրֆորս" data-language-autonym="Հայերեն" data-language-local-name="Armenian" class="interlanguage-link-target"><span>Հայերեն</span></a></li><li class="interlanguage-link interwiki-hr mw-list-item"><a href="https://hr.wikipedia.org/wiki/Kontrafor" title="Kontrafor – Croatian" lang="hr" hreflang="hr" data-title="Kontrafor" data-language-autonym="Hrvatski" data-language-local-name="Croatian" class="interlanguage-link-target"><span>Hrvatski</span></a></li><li class="interlanguage-link interwiki-io mw-list-item"><a href="https://io.wikipedia.org/wiki/Kontraforto" title="Kontraforto – Ido" lang="io" hreflang="io" data-title="Kontraforto" data-language-autonym="Ido" data-language-local-name="Ido" class="interlanguage-link-target"><span>Ido</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/Contrafforte" title="Contrafforte – Italian" lang="it" hreflang="it" data-title="Contrafforte" data-language-autonym="Italiano" data-language-local-name="Italian" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-kk mw-list-item"><a href="https://kk.wikipedia.org/wiki/%D0%9A%D0%BE%D0%BD%D1%82%D1%80%D1%84%D0%BE%D1%80%D1%81" title="Контрфорс – Kazakh" lang="kk" hreflang="kk" data-title="Контрфорс" data-language-autonym="Қазақша" data-language-local-name="Kazakh" class="interlanguage-link-target"><span>Қазақша</span></a></li><li class="interlanguage-link interwiki-ky mw-list-item"><a href="https://ky.wikipedia.org/wiki/%D0%9A%D0%BE%D0%BD%D1%82%D1%80%D1%84%D0%BE%D1%80%D1%81" title="Контрфорс – Kyrgyz" lang="ky" hreflang="ky" data-title="Контрфорс" data-language-autonym="Кыргызча" data-language-local-name="Kyrgyz" class="interlanguage-link-target"><span>Кыргызча</span></a></li><li class="interlanguage-link interwiki-lt mw-list-item"><a href="https://lt.wikipedia.org/wiki/Kontraforsas" title="Kontraforsas – Lithuanian" lang="lt" hreflang="lt" data-title="Kontraforsas" data-language-autonym="Lietuvių" data-language-local-name="Lithuanian" class="interlanguage-link-target"><span>Lietuvių</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Steunbeer" title="Steunbeer – Dutch" lang="nl" hreflang="nl" data-title="Steunbeer" data-language-autonym="Nederlands" data-language-local-name="Dutch" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/%E6%8E%A7%E3%81%88%E5%A3%81" title="控え壁 – Japanese" lang="ja" hreflang="ja" data-title="控え壁" data-language-autonym="日本語" data-language-local-name="Japanese" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-no mw-list-item"><a href="https://no.wikipedia.org/wiki/Strebepilar" title="Strebepilar – Norwegian Bokmål" lang="nb" hreflang="nb" data-title="Strebepilar" data-language-autonym="Norsk bokmål" data-language-local-name="Norwegian Bokmål" class="interlanguage-link-target"><span>Norsk bokmål</span></a></li><li class="interlanguage-link interwiki-oc mw-list-item"><a href="https://oc.wikipedia.org/wiki/Contraf%C3%B2rt" title="Contrafòrt – Occitan" lang="oc" hreflang="oc" data-title="Contrafòrt" data-language-autonym="Occitan" data-language-local-name="Occitan" class="interlanguage-link-target"><span>Occitan</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Skarpa_(architektura)" title="Skarpa (architektura) – Polish" lang="pl" hreflang="pl" data-title="Skarpa (architektura)" data-language-autonym="Polski" data-language-local-name="Polish" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/Contraforte" title="Contraforte – Portuguese" lang="pt" hreflang="pt" data-title="Contraforte" data-language-autonym="Português" data-language-local-name="Portuguese" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-ro mw-list-item"><a href="https://ro.wikipedia.org/wiki/Contrafort" title="Contrafort – Romanian" lang="ro" hreflang="ro" data-title="Contrafort" data-language-autonym="Română" data-language-local-name="Romanian" class="interlanguage-link-target"><span>Română</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/%D0%9A%D0%BE%D0%BD%D1%82%D1%80%D1%84%D0%BE%D1%80%D1%81" title="Контрфорс – Russian" lang="ru" hreflang="ru" data-title="Контрфорс" data-language-autonym="Русский" data-language-local-name="Russian" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-simple mw-list-item"><a href="https://simple.wikipedia.org/wiki/Buttress" title="Buttress – Simple English" lang="en-simple" hreflang="en-simple" data-title="Buttress" data-language-autonym="Simple English" data-language-local-name="Simple English" class="interlanguage-link-target"><span>Simple English</span></a></li><li class="interlanguage-link interwiki-sl mw-list-item"><a href="https://sl.wikipedia.org/wiki/Opornik" title="Opornik – Slovenian" lang="sl" hreflang="sl" data-title="Opornik" data-language-autonym="Slovenščina" data-language-local-name="Slovenian" class="interlanguage-link-target"><span>Slovenščina</span></a></li><li class="interlanguage-link interwiki-sh mw-list-item"><a href="https://sh.wikipedia.org/wiki/Kontrafor" title="Kontrafor – Serbo-Croatian" lang="sh" hreflang="sh" data-title="Kontrafor" data-language-autonym="Srpskohrvatski / српскохрватски" data-language-local-name="Serbo-Croatian" class="interlanguage-link-target"><span>Srpskohrvatski / српскохрватски</span></a></li><li class="interlanguage-link interwiki-sv mw-list-item"><a href="https://sv.wikipedia.org/wiki/Str%C3%A4vpelare" title="Strävpelare – Swedish" lang="sv" hreflang="sv" data-title="Strävpelare" data-language-autonym="Svenska" data-language-local-name="Swedish" class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-th mw-list-item"><a href="https://th.wikipedia.org/wiki/%E0%B8%84%E0%B8%A3%E0%B8%B5%E0%B8%9A%E0%B8%A2%E0%B8%B1%E0%B8%99" title="ครีบยัน – Thai" lang="th" hreflang="th" data-title="ครีบยัน" data-language-autonym="ไทย" data-language-local-name="Thai" class="interlanguage-link-target"><span>ไทย</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/%D0%9A%D0%BE%D0%BD%D1%82%D1%80%D1%84%D0%BE%D1%80%D1%81_(%D0%B0%D1%80%D1%85%D1%96%D1%82%D0%B5%D0%BA%D1%82%D1%83%D1%80%D0%B0)" title="Контрфорс (архітектура) – Ukrainian" lang="uk" hreflang="uk" data-title="Контрфорс (архітектура)" data-language-autonym="Українська" data-language-local-name="Ukrainian" class="interlanguage-link-target"><span>Українська</span></a></li><li class="interlanguage-link interwiki-vls mw-list-item"><a href="https://vls.wikipedia.org/wiki/Steunbeir" title="Steunbeir – West Flemish" lang="vls" hreflang="vls" data-title="Steunbeir" data-language-autonym="West-Vlams" data-language-local-name="West Flemish" class="interlanguage-link-target"><span>West-Vlams</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/%E6%89%B6%E5%A3%81" title="扶壁 – Chinese" lang="zh" hreflang="zh" data-title="扶壁" data-language-autonym="中文" data-language-local-name="Chinese" class="interlanguage-link-target"><span>中文</span></a></li> </ul> <div class="after-portlet after-portlet-lang"><span class="wb-langlinks-edit wb-langlinks-link"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q331900#sitelinks-wikipedia" title="Edit interlanguage links" class="wbc-editpage">Edit links</a></span></div> </div> </div> </div> </header> <div class="vector-page-toolbar"> <div 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.hatnote+link+.hatnote{margin-top:-0.5em}@media print{body.ns-0 .mw-parser-output .hatnote{display:none!important}}</style><div role="note" class="hatnote navigation-not-searchable">This article is about an architectural structure. For the large tree root, see <a href="/wiki/Buttress_root" title="Buttress root">Buttress root</a>. For the Royal Canadian Air Force station, see <a href="/wiki/Buttress,_Saskatchewan" title="Buttress, Saskatchewan">Buttress, Saskatchewan</a>.</div> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:MIAG-AO_CHURCH_2.JPG" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/6/61/MIAG-AO_CHURCH_2.JPG/220px-MIAG-AO_CHURCH_2.JPG" decoding="async" width="220" height="146" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/6/61/MIAG-AO_CHURCH_2.JPG/330px-MIAG-AO_CHURCH_2.JPG 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/6/61/MIAG-AO_CHURCH_2.JPG/440px-MIAG-AO_CHURCH_2.JPG 2x" data-file-width="3696" data-file-height="2448" /></a><figcaption>Buttresses of <a href="/wiki/Miag-ao_Church" class="mw-redirect" title="Miag-ao Church">Miag-ao Church</a>, <a href="/wiki/Philippines" title="Philippines">Philippines</a></figcaption></figure> <p>A <b>buttress</b> is an <a href="/wiki/Architecture" title="Architecture">architectural</a> structure built against or projecting from a <a href="/wiki/Wall" title="Wall">wall</a> which serves to support or reinforce the wall.<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> Buttresses are fairly common on more ancient buildings, as a means of providing support to act against the lateral (sideways) <a href="/wiki/Force" title="Force">forces</a> arising out of inadequately braced <a href="/wiki/Roof" title="Roof">roof</a> structures. </p><p>The term <i><b>counterfort</b></i> can be synonymous with buttress<sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> and is often used when referring to dams, retaining walls and other structures holding back earth. </p><p>Early examples of buttresses are found on the <a href="/wiki/Eanna" title="Eanna">Eanna</a> Temple (ancient <a href="/wiki/Uruk" title="Uruk">Uruk</a>), dating to as early as the 4th millennium BC.<sup class="noprint Inline-Template Template-Fact" style="white-space:nowrap;">[<i><a href="/wiki/Wikipedia:Citation_needed" title="Wikipedia:Citation needed"><span title="This claim needs references to reliable sources. (July 2014)">citation needed</span></a></i>]</sup> </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Terminology">Terminology</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Buttress&action=edit&section=1" title="Edit section: Terminology"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>In addition to <a href="/wiki/Flying_buttress" title="Flying buttress">flying</a> and ordinary buttresses, brick and masonry buttresses that support wall corners can be classified according to their ground plan. A clasping or clamped buttress has an L-shaped ground plan surrounding the corner, an angled buttress has two buttresses meeting at the corner, a setback buttress is similar to an angled buttress but the buttresses are set back from the corner, and a diagonal (or 'French') buttress <a href="/wiki/Bisection" title="Bisection">bisects the angle</a> between the walls where they meet.<sup id="cite_ref-3" class="reference"><a href="#cite_note-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-4" class="reference"><a href="#cite_note-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> </p><p>The gallery below shows top-down views of various types of buttress (dark grey) supporting the corner wall of a structure (light grey). </p> <ul class="gallery mw-gallery-packed"> <li class="gallerycaption">Buttress ground plans</li> <li class="gallerybox" style="width: 181.33333333333px"> <div class="thumb" style="width: 179.33333333333px;"><span typeof="mw:File"><a href="/wiki/File:Anglebuttress.PNG" class="mw-file-description" title="Angled buttress"><img alt="Angled buttress" src="//upload.wikimedia.org/wikipedia/commons/7/7c/Anglebuttress.PNG" decoding="async" width="180" height="200" class="mw-file-element" data-file-width="188" data-file-height="210" /></a></span></div> <div class="gallerytext">Angled buttress</div> </li> <li class="gallerybox" style="width: 273.33333333333px"> <div class="thumb" style="width: 271.33333333333px;"><span typeof="mw:File"><a href="/wiki/File:Claspingbuttress.PNG" class="mw-file-description" title="Clasping or clamped buttress"><img alt="Clasping or clamped buttress" src="//upload.wikimedia.org/wikipedia/commons/e/ee/Claspingbuttress.PNG" decoding="async" width="272" height="200" class="mw-file-element" data-file-width="232" data-file-height="171" /></a></span></div> <div class="gallerytext">Clasping or clamped buttress</div> </li> <li class="gallerybox" style="width: 167.33333333333px"> <div class="thumb" style="width: 165.33333333333px;"><span typeof="mw:File"><a href="/wiki/File:Diagonalbuttress.PNG" class="mw-file-description" title="Diagonal or 'french' buttress"><img alt="Diagonal or 'french' buttress" src="//upload.wikimedia.org/wikipedia/commons/1/15/Diagonalbuttress.PNG" decoding="async" width="166" height="200" class="mw-file-element" data-file-width="206" data-file-height="249" /></a></span></div> <div class="gallerytext">Diagonal or 'french' buttress</div> </li> <li class="gallerybox" style="width: 202px"> <div class="thumb" style="width: 200px;"><span typeof="mw:File"><a href="/wiki/File:Setbackbuttress.PNG" class="mw-file-description" title="Setback buttress"><img alt="Setback buttress" src="//upload.wikimedia.org/wikipedia/commons/5/53/Setbackbuttress.PNG" decoding="async" width="200" height="200" class="mw-file-element" data-file-width="245" data-file-height="245" /></a></span></div> <div class="gallerytext">Setback buttress</div> </li> </ul> <div class="mw-heading mw-heading2"><h2 id="Gallery">Gallery</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Buttress&action=edit&section=2" title="Edit section: Gallery"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul class="gallery mw-gallery-packed"> <li class="gallerycaption">Examples of Buttresses</li> <li class="gallerybox" style="width: 75.333333333333px"> <div class="thumb" style="width: 73.333333333333px;"><span typeof="mw:File"><a href="/wiki/File:Buttress_-_Palace_of_Westminster_-_London_-_England_-_040404.jpg" class="mw-file-description" title="A buttress and a flying buttress, mostly concealed, supporting walls at the Palace of Westminster"><img alt="A buttress and a flying buttress, mostly concealed, supporting walls at the Palace of Westminster" src="//upload.wikimedia.org/wikipedia/commons/thumb/2/22/Buttress_-_Palace_of_Westminster_-_London_-_England_-_040404.jpg/110px-Buttress_-_Palace_of_Westminster_-_London_-_England_-_040404.jpg" decoding="async" width="74" height="160" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/2/22/Buttress_-_Palace_of_Westminster_-_London_-_England_-_040404.jpg/165px-Buttress_-_Palace_of_Westminster_-_London_-_England_-_040404.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/2/22/Buttress_-_Palace_of_Westminster_-_London_-_England_-_040404.jpg/221px-Buttress_-_Palace_of_Westminster_-_London_-_England_-_040404.jpg 2x" data-file-width="384" data-file-height="834" /></a></span></div> <div class="gallerytext">A buttress and a flying buttress, mostly concealed, supporting walls at the <a href="/wiki/Palace_of_Westminster" title="Palace of Westminster">Palace of Westminster</a></div> </li> <li class="gallerybox" style="width: 216px"> <div class="thumb" style="width: 214px;"><span typeof="mw:File"><a href="/wiki/File:Zejtun_cultural_heritage_11.jpg" class="mw-file-description" title="Buttress at Our Saviour's Chapel, Żejtun, Malta"><img alt="Buttress at Our Saviour's Chapel, Żejtun, Malta" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/49/Zejtun_cultural_heritage_11.jpg/321px-Zejtun_cultural_heritage_11.jpg" decoding="async" width="214" height="160" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/49/Zejtun_cultural_heritage_11.jpg/482px-Zejtun_cultural_heritage_11.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/49/Zejtun_cultural_heritage_11.jpg/643px-Zejtun_cultural_heritage_11.jpg 2x" data-file-width="2592" data-file-height="1936" /></a></span></div> <div class="gallerytext">Buttress at <a href="/wiki/Our_Saviour%27s_Chapel,_%C5%BBejtun" title="Our Saviour's Chapel, Żejtun">Our Saviour's Chapel</a>, <a href="/wiki/%C5%BBejtun" title="Żejtun">Żejtun</a>, Malta</div> </li> <li class="gallerybox" style="width: 108px"> <div class="thumb" style="width: 106px;"><span typeof="mw:File"><a href="/wiki/File:2014_02_13_16_12_25_Milano_ITALY_Duomo_facciata_facade_con_lampione_with_street_lamp_photo_Paolo_Villa_FOTO3972.JPG" class="mw-file-description" title="Façade buttresses at Milan Cathedral, Italy"><img alt="Façade buttresses at Milan Cathedral, Italy" src="//upload.wikimedia.org/wikipedia/commons/thumb/5/51/2014_02_13_16_12_25_Milano_ITALY_Duomo_facciata_facade_con_lampione_with_street_lamp_photo_Paolo_Villa_FOTO3972.JPG/159px-2014_02_13_16_12_25_Milano_ITALY_Duomo_facciata_facade_con_lampione_with_street_lamp_photo_Paolo_Villa_FOTO3972.JPG" decoding="async" width="106" height="160" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/5/51/2014_02_13_16_12_25_Milano_ITALY_Duomo_facciata_facade_con_lampione_with_street_lamp_photo_Paolo_Villa_FOTO3972.JPG/238px-2014_02_13_16_12_25_Milano_ITALY_Duomo_facciata_facade_con_lampione_with_street_lamp_photo_Paolo_Villa_FOTO3972.JPG 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/5/51/2014_02_13_16_12_25_Milano_ITALY_Duomo_facciata_facade_con_lampione_with_street_lamp_photo_Paolo_Villa_FOTO3972.JPG/318px-2014_02_13_16_12_25_Milano_ITALY_Duomo_facciata_facade_con_lampione_with_street_lamp_photo_Paolo_Villa_FOTO3972.JPG 2x" data-file-width="3264" data-file-height="4928" /></a></span></div> <div class="gallerytext">Façade buttresses at <a href="/wiki/Milan_Cathedral" title="Milan Cathedral">Milan Cathedral</a>, Italy</div> </li> <li class="gallerybox" style="width: 215.33333333333px"> <div class="thumb" style="width: 213.33333333333px;"><span typeof="mw:File"><a href="/wiki/File:Barrage_Daniel-Johnson2_edited.jpg" class="mw-file-description" title="Buttresses on the 700ft tall Daniel-Johnson Dam, Quebec"><img alt="Buttresses on the 700ft tall Daniel-Johnson Dam, Quebec" src="//upload.wikimedia.org/wikipedia/commons/thumb/6/66/Barrage_Daniel-Johnson2_edited.jpg/320px-Barrage_Daniel-Johnson2_edited.jpg" decoding="async" width="214" height="160" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/6/66/Barrage_Daniel-Johnson2_edited.jpg/480px-Barrage_Daniel-Johnson2_edited.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/6/66/Barrage_Daniel-Johnson2_edited.jpg/640px-Barrage_Daniel-Johnson2_edited.jpg 2x" data-file-width="3072" data-file-height="2304" /></a></span></div> <div class="gallerytext">Buttresses on the 700ft tall <a href="/wiki/Daniel-Johnson_Dam" class="mw-redirect" title="Daniel-Johnson Dam">Daniel-Johnson Dam</a>, Quebec</div> </li> <li class="gallerybox" style="width: 215.33333333333px"> <div class="thumb" style="width: 213.33333333333px;"><span typeof="mw:File"><a href="/wiki/File:Stone_Butresses_(48013292043).jpg" class="mw-file-description" title="Thick buttresses characterize Earthquake Baroque architecture like Paoay Church, Philippines"><img alt="Thick buttresses characterize Earthquake Baroque architecture like Paoay Church, Philippines" src="//upload.wikimedia.org/wikipedia/commons/thumb/b/b9/Stone_Butresses_%2848013292043%29.jpg/320px-Stone_Butresses_%2848013292043%29.jpg" decoding="async" width="214" height="160" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/b/b9/Stone_Butresses_%2848013292043%29.jpg/480px-Stone_Butresses_%2848013292043%29.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/b/b9/Stone_Butresses_%2848013292043%29.jpg/640px-Stone_Butresses_%2848013292043%29.jpg 2x" data-file-width="1024" data-file-height="768" /></a></span></div> <div class="gallerytext">Thick buttresses characterize <a href="/wiki/Earthquake_Baroque" title="Earthquake Baroque">Earthquake Baroque</a> architecture like <a href="/wiki/Paoay_Church" title="Paoay Church">Paoay Church</a>, Philippines</div> </li> <li class="gallerybox" style="width: 243.33333333333px"> <div class="thumb" style="width: 241.33333333333px;"><span typeof="mw:File"><a href="/wiki/File:Western_side_of_the_Great_Mosque_of_Kairouan.jpg" class="mw-file-description" title="Buttresses of the western side of the Mosque of Uqba in Kairouan, Tunisia"><img alt="Buttresses of the western side of the Mosque of Uqba in Kairouan, Tunisia" src="//upload.wikimedia.org/wikipedia/commons/thumb/f/fa/Western_side_of_the_Great_Mosque_of_Kairouan.jpg/362px-Western_side_of_the_Great_Mosque_of_Kairouan.jpg" decoding="async" width="242" height="160" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/fa/Western_side_of_the_Great_Mosque_of_Kairouan.jpg/542px-Western_side_of_the_Great_Mosque_of_Kairouan.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/fa/Western_side_of_the_Great_Mosque_of_Kairouan.jpg/723px-Western_side_of_the_Great_Mosque_of_Kairouan.jpg 2x" data-file-width="4288" data-file-height="2848" /></a></span></div> <div class="gallerytext">Buttresses of the western side of the <a href="/wiki/Mosque_of_Uqba" class="mw-redirect" title="Mosque of Uqba">Mosque of Uqba</a> in <a href="/wiki/Kairouan" title="Kairouan">Kairouan</a>, <a href="/wiki/Tunisia" title="Tunisia">Tunisia</a></div> </li> <li class="gallerybox" style="width: 215.33333333333px"> <div class="thumb" style="width: 213.33333333333px;"><span typeof="mw:File"><a href="/wiki/File:Standalone_row_house_in_Centralia,_Pennsylvania.JPG" class="mw-file-description" title="Buttresses to support the wall of this row house were constructed after its neighboring house was taken down as part of the Centralia mine fire."><img alt="Buttresses to support the wall of this row house were constructed after its neighboring house was taken down as part of the Centralia mine fire." src="//upload.wikimedia.org/wikipedia/commons/thumb/5/59/Standalone_row_house_in_Centralia%2C_Pennsylvania.JPG/320px-Standalone_row_house_in_Centralia%2C_Pennsylvania.JPG" decoding="async" width="214" height="160" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/5/59/Standalone_row_house_in_Centralia%2C_Pennsylvania.JPG/480px-Standalone_row_house_in_Centralia%2C_Pennsylvania.JPG 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/5/59/Standalone_row_house_in_Centralia%2C_Pennsylvania.JPG/640px-Standalone_row_house_in_Centralia%2C_Pennsylvania.JPG 2x" data-file-width="3591" data-file-height="2693" /></a></span></div> <div class="gallerytext">Buttresses to support the wall of this <a href="/wiki/Row_house" class="mw-redirect" title="Row house">row house</a> were constructed after its neighboring house was taken down as part of the <a href="/wiki/Centralia_mine_fire" title="Centralia mine fire">Centralia mine fire</a>.</div> </li> <li class="gallerybox" style="width: 215.33333333333px"> <div class="thumb" style="width: 213.33333333333px;"><span typeof="mw:File"><a href="/wiki/File:Church_of_St._Lucas,_near_Jelsa,_Hvar,_Croatia_20230826_06.jpg" class="mw-file-description" title="Buttresses supporting 14th-century chapel of St. Lucas near Jelsa, Croatia"><img alt="Buttresses supporting 14th-century chapel of St. Lucas near Jelsa, Croatia" src="//upload.wikimedia.org/wikipedia/commons/thumb/3/33/Church_of_St._Lucas%2C_near_Jelsa%2C_Hvar%2C_Croatia_20230826_06.jpg/320px-Church_of_St._Lucas%2C_near_Jelsa%2C_Hvar%2C_Croatia_20230826_06.jpg" decoding="async" width="214" height="160" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/3/33/Church_of_St._Lucas%2C_near_Jelsa%2C_Hvar%2C_Croatia_20230826_06.jpg/480px-Church_of_St._Lucas%2C_near_Jelsa%2C_Hvar%2C_Croatia_20230826_06.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/3/33/Church_of_St._Lucas%2C_near_Jelsa%2C_Hvar%2C_Croatia_20230826_06.jpg/640px-Church_of_St._Lucas%2C_near_Jelsa%2C_Hvar%2C_Croatia_20230826_06.jpg 2x" data-file-width="4000" data-file-height="3000" /></a></span></div> <div class="gallerytext">Buttresses supporting 14th-century chapel of St. Lucas near <a href="/wiki/Jelsa,_Croatia" title="Jelsa, Croatia">Jelsa</a>, <a href="/wiki/Croatia" title="Croatia">Croatia</a></div> </li> </ul> <div class="mw-heading mw-heading2"><h2 id="See_also">See also</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Buttress&action=edit&section=3" title="Edit section: See also"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/Cathedral_architecture" class="mw-redirect" title="Cathedral architecture">Cathedral architecture</a></li> <li><a href="/wiki/Flying_buttress" title="Flying buttress">Flying buttress</a></li> <li><a href="/wiki/Strainer_arch" title="Strainer arch">Strainer arch</a></li> <li><a href="/wiki/Pilaster" title="Pilaster">Pilaster</a></li> <li><a href="/wiki/Retaining_wall" title="Retaining wall">Retaining wall</a></li></ul> <div class="mw-heading mw-heading2"><h2 id="References">References</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Buttress&action=edit&section=4" title="Edit section: References"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1239543626">.mw-parser-output .reflist{margin-bottom:0.5em;list-style-type:decimal}@media screen{.mw-parser-output .reflist{font-size:90%}}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output .reflist-upper-roman{list-style-type:upper-roman}.mw-parser-output .reflist-lower-alpha{list-style-type:lower-alpha}.mw-parser-output .reflist-lower-greek{list-style-type:lower-greek}.mw-parser-output .reflist-lower-roman{list-style-type:lower-roman}</style><div class="reflist"> <div class="mw-references-wrap"><ol class="references"> <li id="cite_note-1"><span class="mw-cite-backlink"><b><a href="#cite_ref-1">^</a></b></span> <span class="reference-text"><style data-mw-deduplicate="TemplateStyles:r1238218222">.mw-parser-output cite.citation{font-style:inherit;word-wrap:break-word}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}.mw-parser-output .id-lock-free.id-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/6/65/Lock-green.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-limited.id-lock-limited a,.mw-parser-output .id-lock-registration.id-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/d/d6/Lock-gray-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-subscription.id-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/a/aa/Lock-red-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/4/4c/Wikisource-logo.svg")right 0.1em center/12px no-repeat}body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-free a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-limited a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-registration a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-subscription a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .cs1-ws-icon a{background-size:contain;padding:0 1em 0 0}.mw-parser-output .cs1-code{color:inherit;background:inherit;border:none;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;color:var(--color-error,#d33)}.mw-parser-output .cs1-visible-error{color:var(--color-error,#d33)}.mw-parser-output .cs1-maint{display:none;color:#085;margin-left:0.3em}.mw-parser-output .cs1-kern-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right{padding-right:0.2em}.mw-parser-output .citation .mw-selflink{font-weight:inherit}@media screen{.mw-parser-output .cs1-format{font-size:95%}html.skin-theme-clientpref-night .mw-parser-output .cs1-maint{color:#18911f}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .cs1-maint{color:#18911f}}</style><cite class="citation cs2"><a rel="nofollow" class="external text" href="https://www.britannica.com/EBchecked/topic/86773/buttress">"Buttress"</a>, <i>www.britannica.com</i>, Encyclopædia Britannica</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=bookitem&rft.atitle=Buttress&rft.btitle=www.britannica.com&rft.pub=Encyclop%C3%A6dia+Britannica&rft_id=https%3A%2F%2Fwww.britannica.com%2FEBchecked%2Ftopic%2F86773%2Fbuttress&rfr_id=info%3Asid%2Fen.wikipedia.org%3AButtress" class="Z3988"></span></span> </li> <li id="cite_note-2"><span class="mw-cite-backlink"><b><a href="#cite_ref-2">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFChisholm1911" class="citation encyclopaedia cs2"><a href="/wiki/Hugh_Chisholm" title="Hugh Chisholm">Chisholm, Hugh</a>, ed. (1911), <span class="cs1-ws-icon" title="s:1911 Encyclopædia Britannica/Counterfort"><a class="external text" href="https://en.wikisource.org/wiki/1911_Encyclop%C3%A6dia_Britannica/Counterfort">"Counterfort" </a></span>, <i><a href="/wiki/Encyclop%C3%A6dia_Britannica_Eleventh_Edition" title="Encyclopædia Britannica Eleventh Edition">Encyclopædia Britannica</a></i>, vol. 7 (11th ed.), Cambridge University Press, p. 315</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=bookitem&rft.atitle=Counterfort&rft.btitle=Encyclop%C3%A6dia+Britannica&rft.pages=315&rft.edition=11th&rft.pub=Cambridge+University+Press&rft.date=1911&rfr_id=info%3Asid%2Fen.wikipedia.org%3AButtress" class="Z3988"></span></span> </li> <li id="cite_note-3"><span class="mw-cite-backlink"><b><a href="#cite_ref-3">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://www.lookingatbuildings.org.uk/glossary/glossary/B.html?no_cache=1&tx_contagged%5bpointer%5d=8">"Glossary : Buttress"</a>. <i>www.lookingatbuildings.org.uk</i>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=www.lookingatbuildings.org.uk&rft.atitle=Glossary+%3A+Buttress&rft_id=http%3A%2F%2Fwww.lookingatbuildings.org.uk%2Fglossary%2Fglossary%2FB.html%3Fno_cache%3D1%26tx_contagged%255bpointer%255d%3D8&rfr_id=info%3Asid%2Fen.wikipedia.org%3AButtress" class="Z3988"></span></span> </li> <li id="cite_note-4"><span class="mw-cite-backlink"><b><a href="#cite_ref-4">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFEdward_Wyatt" class="citation web cs1">Edward Wyatt. <a rel="nofollow" class="external text" href="http://www.prestbury.net/magazine/church_architecture/page05.htm">"Church architecture: Spires and buttresses"</a>. <i>www.prestbury.net</i>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=www.prestbury.net&rft.atitle=Church+architecture%3A+Spires+and+buttresses&rft.au=Edward+Wyatt&rft_id=http%3A%2F%2Fwww.prestbury.net%2Fmagazine%2Fchurch_architecture%2Fpage05.htm&rfr_id=info%3Asid%2Fen.wikipedia.org%3AButtress" class="Z3988"></span></span> </li> </ol></div></div> <div class="mw-heading mw-heading2"><h2 id="External_links">External links</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Buttress&action=edit&section=5" title="Edit section: External links"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1235681985">.mw-parser-output .side-box{margin:4px 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