KB Duct is the nation's largest manufacturer of industrial Duct and sheet metal components. We're one of the nation's oldest manufacturers of industrial sheet metal, with over 107 years of customer service and customer satisfaction. We have strategically and conveniently located customer sales, service and production facilities across North America - in the East, Southeast, Mid-West and the West Coast. KB Duct wants to be your national sheet metal supplier. No one else can offer you what KB Duct can: ◦A complete offering of industrial ducting - flanged and clamp-together. ◦Individual components or complete systems, including all accessories. ◦Custom and special fabrications. ◦Complete fabrication services. ◦Custom development of special products. You draw it and we can make it! ◦Free design services. We can turn the roughest drawings into full 3-D system designs. ◦Highest quality - guaranteed! From the latest technology and production techniques. ◦Full service and support at all levels. SOMETHING WE'RE KNOWN FOR. ◦Fastest delivery in the industry.