Quanex Building Products Corporation, together with its subsidiaries, provides components for the fenestration industry in the United States, Europe, Canada, Asia, and internationally.

The company operates through three segments: North American Fenestration, European Fenestration, and North American Cabinet Components.

It offers flexible insulating glass spacers, extruded vinyl profiles, window and door screens, and precision-formed metal and wood products, as well as cabinet doors and other components for original equipment manufacturers (OEMs) in the kitchen and bathroom cabinet industry.

The company also provides various non-fenestration components and products, including solar panel sealants, trim moldings, vinyl decking, fencing, water retention barriers, and conservatory roof components.

It sells its products to OEMs in the building products industry through sales representatives, direct sales force, distributors, and independent sales agents.

The company was founded in 1927 and is based in Houston, Texas.