What is an engineering shop drawing review?

An engineering shop drawing review checks whether a proposed fabricated item, connection, equipment support, or specialty assembly is consistent with the contract documents and the design assumptions that affect it. The reviewer compares dimensions, materials, loads, attachments, interfaces, clearances, substitutions, tolerances, and installation information, then records comments or a defined disposition. Review is not a redesign of every fabrication detail and does not transfer the contractor's responsibility for dimensions, quantities, coordination, or means and methods. The responsible engineer states the review scope and relies on suitable project records; the contractor remains responsible for fabrication and field verification, and the AHJ controls any required deferred review or approval.

The correct application of engineering shop drawing review starts with the actual project, not a generic promise. Confirm the jurisdiction, adopted code, design scope, existing conditions, required deliverables, and professional responsibility before relying on a conclusion. A responsible engineer documents assumptions and identifies information that still needs verification.

Project type, occupancy, existing construction, site conditions, code edition, agency requirements, and changes made after the original design can change the work. A concise answer is useful for orientation, but the signed or sealed project record must reflect the current scope and the authority's process.

• Confirm the authority having jurisdiction and current checklist
• Use current drawings, calculations, field evidence, and equipment information
• Separate engineering decisions from owner, architect, contractor, utility, and agency decisions
• Record assumptions, limitations, and questions requiring direct AHJ confirmation