Builders Supply Company, Inc. is a recognized member of Intertek's Certified Machiner Program, allowing them to modify Intertek Certified Fire Doors as detailed within the applicable Intertek specification listings. Builders Supply Company, Inc.'s site at 501 S French Street, Lancaster, SC 29720 is subject to routine inspections to verify that modifications to Intertek Certified Fire Doors are done in compliance with the requirements of the Intertek specification listings.
