A plan INCORRECT
The design is the initial sketch, the overview. Then a detailed sketch of the design starts showing the intricacies of the design.
Then an accurate plan is drawn to scale showing exact dimensions and precise details and information for the building trades to study and follow carefully.
architect can supervise, or engineer..
A construction Superintendent
A person who designs buildings and in many cases supervises their construction.
A person who designs buildings and in many cases also supervises their construction.
The likely word sought is architect (building designer).
An architect is a person who designs buildings.
An architect.
An architect.
An carpenter
One can find the structural designs of metal buildings at such sites as The Building Design Network, Armstrong Steel Buildings, MBMI Steel Buildings, and Ceco Building Systems.
Architect
architect
ARCHITECT