We can fabricate residential and light commercial ductwork using up to 22 gauge material. We use top quality materials on all ductwork. Our standard plenums and transitions are fabricated using 26 gauge G60 grade galvanized. G90 grade is available for those that demand the absolute best. We use high-quality insulation in both 1/2" and 1" thickness with premium grade adhesive. Grip Nails are also used in high air pressure applications. We also fabricate all types of pans.