Selected Bibliography Architecture - Form Space and Order | Page 43

VO L U ME A plane extended in a direction other than its intrinsic direction becomes a volume. Conceptually, a volume has three dimensions: length, width, and depth. All volumes can be analyzed and understood to consist of: • points or vertices where several planes come together • lines or edges where two planes meet • planes or surfaces that define the limits or boundaries of a volume Form is the primary identifying characteristic of a volume. It is established by the shapes and interrelationships of the planes that describe the boundaries of the volume. As the three-dimensional element in the vocabulary of architectural design, a volume can be either a solid— space displaced by mass—or a void—space contained or enclosed by planes. 28 / A R C H I TE C TU R E : F O R M , S PA C E , & O R D E R