Wood Extension Jambs

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Save valuable time with Quanex Building Products’ wood extension jamb engineered to work within your existing processes. Our patented pocket and screw system enables your employees to easily apply the jamb in place using preset screws.

To meet your unique needs, we offer more than 30 solid and veneered wood species. By aligning ourselves with well-established mills that must pass an ongoing evaluation based on yield, overall quality, and on-time delivery, we are constantly adding new, high-quality species.

Window & Patio Door Extension Jamb Kits

Customers can buy ready-to-install jambs in several species and substrates, including solid wood, medium-density fiberboard, veneer wrapped, primed or painted. Jambs are kitted by unit and labeled uniquely for each job – customers just open the kit and install the jambs in seconds with our patented pocket and screw system.

Learn more about our preassembled components and custom millwork capabilities or contact us for more information on our window & door jamb kits.