This guide aims to provide comprehensive training for sheet metal fabrication apprentices, covering essential mathematical, practical, and technical skills required for the trade. Developed by NCCER, it draws upon industry expertise to deliver a robust curriculum. The material is structured to build foundational knowledge in areas such as trade math, piping practices, radial line development, blueprint interpretation, and fabrication standards, culminating in practical application of skills like soldering and ductwork construction.

This technical guide is presented as a comprehensive resource for sheet metal trainees, reflecting a structured curriculum developed by NCCER. The content covers a range of foundational and advanced topics necessary for the trade, suggesting a focus on practical skill development and technical understanding. The inclusion of instructor supplements indicates its intended use within formal training programs.