Slide Commercial Duct Fabrication

We know that finding the right ductwork fabrication supplier isn't easy. Tired of calling around and trying to get all the pieces and parts done? Wearied with the struggle between dividing time fabricating, estimating and installing?  Fed up with losing your selling time to estimating and fabricating? Let us help you with your ductwork fabrication!

Capital Sheet Metal Commercial Duct Fabrication has a combination of current technology along with traditional techniques to building duct – the best of both worlds. All built to meet the regulation and client’s standards or higher!

Our duct fabrication process starts with a professional order form that are either brought in from outside contractors or from our mechanics.


All fittings are cut out with an advanced cutting technology plasma machine. This saves time to allow us to get our products out quickly while meeting demand. After the fittings are cut, we run them through a Lockformer that will put a snap lock seams on the fitting. We prefer to use snap lock for a better air tight seal. Finally, we have our professional sheet metal fabricators put the fittings together, and then they are ready for installation.

Straight Duct

Straight duct is cut to length with a 5 or 10 foot shear. The duct is then laid out on a hydraulic notching machine. Depending on the pressure class of the duct, a snap lock seam is applied with a lockformer machine on the straight duct. They are then folded with either a power brake or handbrake depending on the gauge of the metal. Last but not least, a cleat former to turn drives on the duct if desired.