What the package includes, and what it usually does not. Scope varies between suppliers, and comparing quotations is close to impossible until the boundaries are established. Almost always included: primary frame, secondary framing, roof and wall sheeting, fasteners, bracing and the anchor bolt setting plan. Frequently excluded: foundations, floor slab, erection labour, cranage, insulation, doors, gutters and any local permit engineering. Several of those are substantial costs, and a quotation that appears cheaper often simply excludes more of them. The anchor bolt plan is the critical interface between the two scopes — the supplier issues the bolt layout and the column reactions, and the foundation is designed locally to suit those reactions and the site’s soil. Errors at that interface are expensive because they surface only when the first column will not sit down. Design responsibility is normally split the same way: the supplier engineers the building system, while a local engineer takes responsibility for the foundation and, in most jurisdictions, for the permit submission. If you are looking for a supplier rather than a definition, our [pre-engineered steel buildings](/pre-engineered-steel-buildings) page covers what we design and deliver, and [steel building codes and standards](/steel-building-codes-standards) explains how the division of responsibility usually works.