Cornell Iron Works operates a facility that is ISO 9001 certified by the International Organization for Standardization. Founded in 1828, Cornell manufactures a complete line of closure products, which includes rolling service doors, fire-rated doors and security grille products for commercial, industrial, institutional and retail use. Additionally, Cornell manufactures and distributes insulated rolling doors, counter doors, fire doors and insulated fire doors, smoke shield doors and a variety of grilles. Cornell s products are supplied through a network of authorized installing door distributors throughout the United States. The company has been owned and managed by the Cornell family since 1828. Cornell Iron Works is located in Mountaintop, Pa.