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2D Primary Forms

As lines are widened, they become “planes” with properties of length, width, shape, surface, orientation and position. Planes are 2-dimensional, having no depth, yet they are significant forms in designing architectural constructions.

The identifying characteristics of planes are their shapes, which are determined by the contour of the line forming the plane’s edges. The most common shapes are “squares,” “circles,” “triangles,” and “irregular.” These primary forms can be seen in the most complex buildings.
 

Select a 2-dimensional primary form on the left. Roll over the example image to display how the primary form is used in the structure. Click on 1, 2, or 3 on the right to switch between examples of each form.