In which CSI division is information about structural steel found?

Information about structural steel is categorized under Division 05 of the Construction Specifications Institute (CSI) MasterFormat. This division specifically focuses on Metals, which includes various metal structures, metal fastenings, and metal accessories. Structural steel, being a critical component in many construction projects, is detailed in this division, including specifications for fabrication, installation, and material properties, ensuring that engineers and contractors have comprehensive guidelines for working with metal materials.

In contrast, Division 01 relates to General Requirements, providing overarching guidelines for contract documents and project management, while Division 10 deals with Specialties, which encompasses items such as toilet partitions, signage, and other fittings that do not pertain to structural elements. Division 15 has been largely replaced by Division 22 and involves plumbing systems and, previously, mechanical systems, which do not include structural steel. Thus, Division 05 is the division dedicated to structural steel and relevant metalworking details.