Quanex Building Products Corp. engages in the manufacture of components sold to original equipment manufacturers in the building products industry. The company is headquartered in Houston, Texas and currently employs 3,875 full-time employees. The firm's components can be categorized as window and door (fenestration) components, and kitchen and bath cabinet components. Its fenestration components include flexible insulating glass spacers, extruded vinyl profiles, window and door screens, and precision-formed metal and wood products. The company operates through three segments: North American Fenestration segment, which is engaged in manufacturing vinyl profiles, insulating glass (IG) spacers, screens and other fenestration components; European Fenestration segment, which includes United Kingdom-based vinyl extrusion business, manufacturing vinyl profiles and conservatories, and the European insulating glass business manufacturing IG spacers, and North American Cabinet Components segment, which includes North American cabinet door and components business and two wood-manufacturing plants.