Steel Structures Inc. We are a licensed contractor in Nevada with an "A14" Steel Erection/ Industrial Machinery since 1981. We specialize in all types of structural steel applications. At Steel Structures we believe in safety, loyalty, and stand by the company's legacy of integrity, and fairness. Our goal is to be a responsible partner while building quality construction projects as well as relationships. The fabrication facility for Steel Structures Inc. is located in St. George, Utah.