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From Drawings to Installation: Third-Year Sheet Metal Apprentices Build Complete Overhead Duct Systems
Our third-year sheet metal apprentices are connecting technical drawings, precision fabrication, and field installation through a comprehensive overhead ductwork project. The assignment takes students through the full construction process—from prefabrication drawings and fitting fabrication to installation, as-built documentation, and a total job cost breakdown.
The work begins with prefabrication drawings, where students translate project requirements into the information needed to build and assemble their duct systems. This stage reinforces dimensional accuracy, fitting layout, and planning before fabrication begins.
Apprentices then fabricate the required fittings and install their overhead systems as though the ductwork will remain exposed. That approach places added emphasis on alignment, fit, consistent workmanship, and the finished appearance of the installation. Each connection contributes to both the function of the system and the quality of the completed project.
Once installation is complete, students prepare as-built drawings to document the final configuration. They also develop a total cost breakdown to evaluate what it takes to complete the job, connecting shop and field decisions to the financial side of construction.
By bringing drafting, fabrication, installation, documentation, and cost analysis into one assignment, this project helps apprentices understand how each phase affects the next. It builds the technical judgment, planning skills, and accountability needed to move a sheet metal project from a drawing to a finished installation.
From Bid Drawings to Installation: Third-Year Sheet Metal Apprentices Build Real-World Skills
Our third-year Sheet Metal apprentices are taking on an overhead group project that simulates the full scope of a field installation. Starting with a bid drawing, students remove existing fittings, fabricate replacements, and install their completed work—connecting drawing interpretation and shop fabrication with hands-on installation.
The project also includes preparing as-built drawings and a cost breakdown, helping apprentices understand how to document completed work and account for project costs. Each group must coordinate with other teams to plan the installation, strengthening the communication, teamwork, and problem-solving skills needed on a busy jobsite.
By bringing these responsibilities together in one project, our program prepares apprentices to approach sheet metal work with precision, productivity, and an understanding of how their work fits into the overall job.