Twenty-Six Design Concepts, Illustrated

density In a continuation of solid and void, architects must consider the density of their buildings. A dense building, such as Marcel Breuer's central library, may be relatively monolithic and appear heavy and solid.

Alternatively, a less dense building would feel lighter by incorporating elements such as perforation, minimalist support, and a more open plan. Material usage also plays a role in determining density.

Concrete, for example, is a very dense material; this is why brutalist buildings are often descried to be dense. Using windows, however, introduces an element of transparency and reflection, thus contributing a lighter feel. Although it may seem arbitrary, density plays a large role in the way that people will percieve a building, so it must be considered. And if incorporated properly, it can powerfully underscore thematic intent.