North Central Supply, Inc. 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. North Central Supply, Inc.'s site at 818 E. Saint Andrew Street, Rapid City, SD 57701 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.
