Nonbuilding structure, also referred to simply as structure, refers to a body or system of connected parts used to support a load not designed for continuous human occupancy. The term is used by architects, structural engineers, and mechanical engineers to distinctly identify structures that are not buildings.

Examples of nonbuilding structures:

Some structures that are occupied periodically and would otherwise be considered nonbuilding structures are categorized as "buildings" for life and fire safety purposes:^{[citation needed]}