What type of structures require trusses to be placed on 24-inch centers?

Trusses are structural components used to support roofs, floors, and other loads, and their spacing is crucial for ensuring the integrity of the structure. When it comes to light-frame structures, which typically include single-family homes, townhouses, and similar buildings, placing trusses on 24-inch centers is a common practice.

This spacing provides a balance between structural support and material efficiency. Light-frame constructions rely on a system of interconnected members, and using 24-inch centers for trusses helps distribute loads effectively while accommodating standard-size insulation and sheathing materials. It is essential for meeting code requirements and enhancing energy efficiency.

Other types of structures, such as heavy commercial buildings or multi-story constructions, may require different spacing based on their load demands and structural systems. Therefore, while various wood-framed structures exist, the specific practice of placing trusses on 24-inch centers is primarily associated with light-frame construction, making this answer accurate.