Rule Steel is a steel fabricator who cares about your project, your schedule and your people from start to finish, and we always deliver quality and value on time with every job, large or small. Our plant is located in Caldwell, Idaho and we serve the northwest construction industry.  Rule Steel's management is committed to providing quality fabricated structural and miscellaneous steel to the construction industry. We understand that structural steel provides an integral part of the structural integrity and safety of a building, and that it is a key element of construction critical path schedules. These facts, plus a personal commitment to quality, employee relations, safety and customer relationships, keeps our company focused on quality processes and products, which our customers have come to expect and depend upon. We are also a member of the American Institute of Steel Construction and are certified by AISC for the fabrication of structural steel for complex buildings.

Specializing in the fabrication of structural steel for commercial, industrial, and institutional buildings, Rule Steel Company provides complete steel services to clients including fabricated structural steel, steel joists and deck, stairs, railings and miscellaneous steel. Each job, large or small is treated with the same level of importance and professionalism that our clients have come to expect from Rule Steel.