Pre-engineered buildings are factory manufactured buildings of steel that are shipped to site and the steel members assembled together by bolted connections. As compared to conventional buildings in this case the contractor also designs the building commonly called as design & build.
These buildings are ideally suited for industrial buildings and warehouses. They are cost effective as compared to conventional steel buildings. They are cheap and fast to erect. As these buildings are bolted connections they can be dismantled and moved to other site as well.