Project teams often talk about drawings as if they were one thing, but design drawings and shop drawings do different jobs. Understanding the difference helps you know what to ask for, and when.
Design drawings describe intent
Design drawings, prepared by the architect or design team, show what the building should look like and how it should perform. They set out layouts, dimensions, materials and performance requirements, but they do not usually explain how each individual component will be made.
Shop drawings describe how it gets made
Shop drawings are developed for a specific trade or building component, such as millwork, glazing, a ceiling package or a run of metalwork. They take the design intent and add the detail a fabricator or installer needs, so the work can be produced and fitted correctly.
- Dimensioned plans, elevations and sections
- Joinery, fixing and junction details
- Material and finish references
- Piece numbering for fabrication layouts
- Setting-out information for installation
Why organised packages matter
A shop drawing set is easier to review and build from when it is consistent. That means clear sheet naming, revision marks that show what has changed, and schedules that match the drawings. When fabricators, installers and reviewers all work from the same organised set, questions are caught earlier.
What shop drawings are not
Shop drawing support is trade-level detailing. It is not overall building design, and it does not replace structural engineering. Where structural calculations are needed, they remain the responsibility of the project engineer.
Learn more about our Drafting & Shop Drawings service, or send us your documents to discuss a package.