Duct Board Plenum: Cut, Fold, and Assemble (10×12) | HVAC Technical Academy – Sanford, FL

Speaker: Kevin Hill (HVAC Technical Academy) Watch Kevin Hill walk you through cutting and assembling a 10×12 duct board plenum—from the math to the V-cuts, butt cut, cleanup, and final fold-up. It’s a real-world demo with pro tips on getting clean edges, managing tension in the fiberglass, and forming a square box without a second set of hands. What you’ll learn • The quick math: why you subtract 3 inches from each dimension before cutting • How to use V-cuts and a butt cut so corners fold tight and clean • Trimming/“filleting” excess fiberglass for a crisp seam • Forming, squaring, and securing the plenum so it holds its shape Tools/Materials shown Duct board • V-groove cutter (red sled) • Straight knife • Tape measure • Marker • Utility blades Train with us in Sanford, FL → https://hvacta.com 👍 Like the video 🔔 Subscribe for more hands-on HVAC builds 📤 Share this with a classmate or tech who’ll benefit #HVAC #DuctBoard #Plenum #SheetMetal #Fabrication #HVACTechnician #SanfordFL #HVACTA