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Al Whitley/2 min read

Understanding Architectural Drawings: Floor Plans, Elevations, Building Sections, Wall Sections, and Details

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This tutorial walks through understanding architectural drawings: floor plans, elevations, building sections, wall sections, and details, covering essential tools and techniques for your projects.

I would like to spend a few minutes explaining to you the difference between a Floor Plan, Building Elevation, Building Section, Wall Sections, and Details. Typically, a Floor Plan is a slice that's happening through a building, and the slice is normally measured about 4 feet 6 inches above the finished floor or ground plane of a building. So a Floor Plan is a horizontal slice through a building.

An Elevation is a view that is outside of the building that looks straight on at the different sides of a building. We have Floor Plans that are horizontal slices through the building, Elevations that are vertical views of the exterior of the building. A Building Section is a vertical slice that happens through a building.

The Floor Plan, the Building Elevations, and Building Sections are normally shown at the same scale throughout a set of drawings where the Floor Plans, Elevations, and Building Sections relay information at the same level of detail. We also have something called a Wall Section. In a Wall Section, we are zooming in closer on some specific information so that we can show even more detail.

Last but not least, we have a detail itself. With a detail, we are really zooming in on information provided within the set of construction documents. We have a Floor Plan, which is a horizontal slice through the building.

We have Elevations, which are exterior views looking directly at the building. We have Building Sections, which are slices through the building. We have Wall Sections, which are enlarged areas within the drawing.

And we have Details, which are providing yet more information on the drawing. These are the typical kinds of information that we show throughout a set of construction documents. It is important to remember that these views are representations of our building geometry as two-dimensional drawings.

These drawings may be referred to as views, drawings, plans, details, or even images. These words are interchangeable in most situations, but drawings will usually be the best word for describing these views.