{"id":14555,"date":"2016-08-22T13:00:00","date_gmt":"2016-08-22T13:00:00","guid":{"rendered":"http:\/\/architizer.wpengine.com\/architecture-101-what-is-a-section\/"},"modified":"2022-05-31T08:27:11","modified_gmt":"2022-05-31T12:27:11","slug":"architecture-101-what-is-a-section","status":"publish","type":"post","link":"https:\/\/architizer.com\/blog\/practice\/details\/architecture-101-what-is-a-section\/","title":{"rendered":"Architecture 101: What Is a Section Drawing?"},"content":{"rendered":"

Architizer Journal is reader-supported. When you buy through links on our site, we may earn an affiliate commission.\u00a0Learn more<\/a><\/em><\/p>\n

We introduced LTL Architects<\/a>\u2019 amazing new book Manual of Section<\/i> with a devilishly difficult (or was it incredibly easy?) quiz. If you haven\u2019t tested your architectural knowledge yet, do so now<\/a>.<\/p>\n

Manual of Section<\/i><\/a> offers a comprehensive gallery of orthographic slices through famous buildings, but it goes further than that: The opening pages of the compendium analyze the section as a tool for architectural representation and crystallize the definition of this elemental drawing type.<\/p>\n

In the following excerpt, architects Paul Lewis, Marc Tsurumaki and David J. Lewis go right back to basics and ask a fundamental question that should prove informative to architecture students and experienced professionals alike: What is a section? Read on for the definitive definition.<\/p>\n

Architecture 101: What Is a Section Drawing?<\/h2>\n

\u201cWe begin with the seemingly obvious question: \u2018What is a section?\u2019 In reference to architectural drawing, the term section <\/i>typically describes a cut through the body of a building, perpendicular to the horizon line. A section drawing is one that shows a vertical cut transecting, typically along a primary axis, an object or building.<\/p>\n

The section reveals simultaneously its interior and exterior profiles, the interior space and the material, membrane or wall that separates interior from exterior, providing a view of the object that is not usually seen. This representational technique takes various forms and graphic conceits, each developed to illustrate different forms of architectural knowledge, from building sections that use solid fill or poche to emphasize the profile of the form to construction details that depict materials through lines and graphic conventions.<\/p>\n

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The Pantheon, Rome, Italy; via Scribblelive<\/a><\/i><\/p>\n

\n\t\n\t\n<\/div>\n\n

Come\u0301die-Franc\u0327aise by <\/i>Charles de Wailly,<\/i> 1770<\/i><\/p>\n

In an orthographic section, the interior is also described through interior elevations of the primary architectural surfaces, while the combination of a section with a perspective describes in depth the interior as a space, using the techniques of perspectival projection.<\/p>\n

Because the section begins with the visualization of that which will not be directly seen, it remains abstracted from the dominant way of understanding architecture through photographs and renderings. Sections provide a unique form of knowledge, one that by necessity shifts the emphasis from image to performance, from surface to the intersection of structure and materiality that comprises the tectonic logic of architecture.<\/p>\n

\n\t\n\t\n<\/div>\n\n

Lower Manhattan Expressway proposal by <\/i>Paul Rudolph<\/i>, 1972; courtesy of the Library of Congress<\/i><\/p>\n

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The Barbican, London, England; via mbds<\/a><\/i><\/p>\n

At the same time, section demonstrates the exchange among multiple aspects of embodied experience and architectural space, making explicit the intersection of scale and proportion, sight and view, touch and reach that is rendered visible in the vertical dimension (as opposed to from top down). In a section, the interior elevations of walls and surfaces are revealed, combining \u2014 for examination and exploration \u2014 structure and ornament, envelope and interior.<\/p>\n

Plans and sections are similar representational conventions \u2028and offer an important point of comparison. Both depict a relationship that is not directly perceivable by the human eye, between \u2028a building\u2019s mass and the space. Both describe cuts \u2014 the one horizontal, the other vertical. The horizontal division of a plan cuts primarily through walls, not floors. Sections, on the other hand, are capable of showing cuts through both walls and floors and organize space in alignment with the size and scale of the standing human figure.<\/p>\n

\n\t\n\t\n\t

\u00a9 Deborah<\/p>\n\t<\/div>\n\n

Left: Nature-City by WORKac, 2012; courtesy of WORKac. Right: Park Tower by LTL Architects, 2004; courtesy of LTL Architects<\/i><\/p>\n

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Section detail of Park Tower by LTL Architects; via LTL Architects<\/a><\/i><\/p>\n

Plans are typically argued to be the locus of design agency, with sections understood as a means to manifest the effects of the plan through structure and enclosure. In comparison to plan types, which are distinguished by their spatial consequences, section types are usually identified by the scale of their cut: site sections, building sections, wall sections, detail sections.<\/p>\n

Wall and detail sections foreground technical concerns, using graphic conventions of line, hatch and tone, and depict material systems and tectonics. Site sections emphasize a built form\u2019s massing and its relationship with its environment and decrease \u2028the role of internal space. But it is in the building section that a number of crucial issues are at play, including the formal, social, organizational, political, spatial, structural, thermal and technical.\u201d<\/p>\n

Want to learn more? To order your copy of “Manual of Section”, click here<\/b><\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"

We go right back to basics and ask a fundamental question about one of architecture’s favorite drawing types.<\/p>\n","protected":false},"author":16,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"architizer_featured_type":"projects","architizer_featured_image":"1720937","_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[4,2],"tags":[19],"architizer_project":[],"architizer_brand":[],"architizer_firm":[],"architizer_product":[],"class_list":["post-14555","post","type-post","status-publish","format-standard","hentry","category-details","category-practice","tag-guide"],"acf":[],"yoast_head":"\nArchitecture 101: What Is a Section Drawing? - Architizer Journal<\/title>\n<meta name=\"description\" content=\"\u201cWe begin with the seemingly obvious question: \u2018What is a section?\u2019 In reference to architectural drawing, the term section typically describes a cut through the body of a building, perpendicular to the horizon line."\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/architizer.com\/blog\/practice\/details\/architecture-101-what-is-a-section\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Architecture 101: What Is a Section Drawing? 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