Builders Hardware & Hollow Metal is a recognized member of Intertek's Certified Machiner Program, allowing them to modify Intertek Certified Fire Doors and Frames as detailed within the applicable Intertek specification listings. Builders Hardware & Hollow Metal’s site at W165 N5690 Continental Parkway, Menomonee Falls, WI 53051, is subject to routine inspections to verify that modifications to Intertek Certified Fire Doors and Frames are done in compliance with the requirements of the Intertek specification listings.