Main contractors commission independent ‘shop drawings’ that are not otherwise forthcoming from subcontractors. This helps them to program and coordinate the project.
Subcontractors commission ‘feasibility’ and ‘sketch proposal’ drawings and visualisations for a better design dialogue with the main contractor, client or local authority.
Self-Builders need detailed construction drawings, plus fully build-able Planning and Building Regulation drawings.
Great visions are often compromised for lack of being worked out and detailed in drawings that the entire project team can discuss and deliver.