A steel building system features structural steel and covering components, plus related accessories, engineered and designed to act as an integrated building system. The building exterior is built to suit the owner's requirements for masonry, brick, steel, fabric or a combination of these building materials. The building system utilizes rigid frames or columns and beams as the primary structural elements; alternatively, it may be a "self-framing" type, using the cladding as the primary load bearing roof and/or wall elements in addition to functioning as a weather barrier. These buildings are fabricated by the manufacturer at a central location and shipped to builders across Canada. The manufacturer is responsible for the structural design and fabrication of the building system, and the builder is responsible for the erection and related work.