What is a shop drawing?

A shop drawing is a detailed and dimensioned drawing that is typically created by the contractor, subcontractor, or manufacturer to illustrate the specific details of a construction project. These drawings are used to communicate the design specifications and installation requirements for various components of the project, such as structural elements, mechanical systems, and architectural finishes.

Shop drawings are typically created using computer-aided design (CAD) software and may include detailed plans, elevations, sections, and details as required to accurately convey the design intent. They are typically submitted to the architect or engineer for review and approval before construction to ensure that they meet the project's requirements and are in compliance with local building codes and regulations.

Shop drawings are an essential part of the construction process as they help to coordinate the work of different trades and ensure that all components of the project are installed correctly and in accordance with the design specifications. They are often referred to during construction to guide the installation process and to resolve any conflicts or discrepancies that may arise.