General steel detailing process
In basic terms, architects design the building (size, finishes, materials etc.). Structural Engineers calculate, design and specify the structural elements. Both of these disciplines convey this information in drawings. Steel fabricators cannot fabricate their steel from architects or structural engineers drawings. To fabricate steel one requires Fabrication Drawings.
Fabrication Drawings are derived from a combination of the architectural & structural engineers drawings. The setting out of the steel (in plan and elevation) is taken from the architects’ drawings and the sizes as well as the connections from the structural engineer’s drawings.