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Importance of Shop drawings in construction

Shop drawings are often considered the backbone of any fabrication industry and a part of the Construction Document Submittal Process of all construction and restoration projects. Shop drawings are generally a set of drawings needed for prefabricated components and include dimensions, manufacturing standards, and fabrication details. 

What are shop drawings and what is the significance of shop drawings in construction? Today construction projects are getting more rigid as far as economy and risk management are concerned. Project investments are suffering, uncertainties are swelling, and there is always a crisis of the time, money, and manpower. This article will discuss how the construction industry leverages AutoCAD shop drawing and steel shop drawing to manage its activities with fabricators and sub-contractors.

What are Shop drawings?

Shop drawings are detailed and accurate descriptions of design and plans for an equipment or building component meant to be manufactured or installed by a fabrication shop. Therefore, it is very important to ensure that all the components are skillfully fabricated and installed as per the industry standards and codes, they are also referred to as “prefabrication drawings.” 

Shop drawings represent a range of prefabricated components—from steel beams, trusses, and concrete panels to elevators, appliances, cabinetry, ductwork, electrical layouts, etc.

Shop drawings include more detailed and precise information in comparison to design and construction drawings and represent the phase of the prefabrication process after drafting design drawings and specifications.

Specifications of a Shop Drawing

  • The project title and number
  • The date of the initial drawing, as well as the dates of the following revisions
  • Detailed CAD drawings of the prefabricated component, often shown from various angles
  • Data required to fabricate the component, including physical dimensions, material specifications, manufacturing protocols, and specific instructions
  • Information required to assemble or install the component, such as step-by-step instructions, a diagram of connections, and a list of supporting materials that must be procured and planned for successful installation
  • Detailed references that describe how the prefabrication design addresses the specifications and requirements of the original design and construction documents
  • Notes of any changes or deviation from the original design and construction documents
  • Notes of any key dimensions at the job site that must be reviewed and verified before the component can be fabricated and installed

Shop Drawings must also include:

  • Comparison information for the engineers and architects to refer to the details and specs of the drawings. Shop drawing takes care of the condition, production, and precise descriptions in the specifications and construction drawings.
  • Change information regarding any modifications from the construction documents. The information allows to relate any changes from the original records and help the engineers and architects to analyze & approve any alteration.
  • Suggestion information where confirmation of dimensions is needed. Construction drawings may present the dimensions of the site or facility is a slightly different way and may vary from the original site dimensions. Therefore, it becomes important that fabricated components are ready for the installation and don’t need further alterations.

Applications of Shop Drawings in AEC Industry

  • Architects and engineers analyze how the fabricator’s version of a component corresponds to the original design and construction documents.
  • Structural engineers use shop drawings to establish that every concrete reinforcing bar will be manufactured per the building’s structural integrity and create an accurate building structure.
  • Manufacturers use shop drawings to obtain a clear and detailed understanding of the materials, dimensions, and gain approval from the design team on the selection of final materials. and instructions required to fabricate components.
  • MEP (Mechanical, Electrical, and Plumbing) specialists use shop drawings to gain a clear plan of how to install components like ductwork, electrical panels, and piping systems on a job site.
  • Coordination & collaboration with BIM information to control the overall project design and proactively detect building clashes before actual fabrication and construction begin.

AEC industry uses shop drawings to assure the accurate design, fabrication, and installation of crucial building components.


Importance and Benefits of Shop Drawings

  • Shop drawings enable us to get an accurate design model, optimizing construction schedule, efficient cost estimation & quantity take-offs, improve production quality and allow efficient handover. Thus, providing efficient collaboration and communication across cross -functional activities.
  • Provides Easily and comprehensive information for the stakeholders to understand
  • Shop Drawings helps in defining the roles and responsibilities among the stakeholders and enhances coordination, therefore decreasing risks and liabilities.
  • Facilitates Engineering Accuracy & Analysis 
  • Integral part of Construction Document Submittal Process of all-important construction and restoration projects.

In a rapidly evolving construction scenario shop drawings are critical for the AEC industry to produce timely, cost-effective, and error-free work. INDOVANCE Inc delivers a comprehensive range of fabrication drawings services which include structural steel shop drawings, GA (general arrangement) drawings, 3D modelling and fabrication drawings, millwork shop drawings and more. With our skilled team of CAD experts and 18+ years of experience working on a wide range of projects across different domains makes INDOVANCE Inc a One Stop Shop for all of your fabrication drawing solutions.

For more queries regarding any of the above-mentioned topics, feel free to connect with us on our website www.indovance.com or contact us on +1-919-238-4044.

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