Step-by-Step Guide: How to Create Basic Shop Drawings

Shop Drawings

Shop drawings play a vital role in the construction, manufacturing, and engineering industries. They offer a detailed visual representation of components, systems, or structures, ensuring accurate fabrication, assembly, and installation. Whether you’re a beginner or just looking to refresh your process, this step-by-step guide will walk you through how to create basic shop drawings with confidence and accuracy.

What Are Shop Drawings?

Shop drawings are detailed construction or manufacturing drawings created by contractors, fabricators, or manufacturers. These drawings include precise dimensions, materials, installation methods, fabrication details, and other specifications that aren’t typically found in design drawings. Unlike architectural or engineering plans, shop drawings focus more on how something will be made or assembled.

Why Are Shop Drawings Important?

  • Ensure Accuracy: They help prevent errors during manufacturing or installation.
  • Bridge the Gap: Shop drawings translate design intent into real-world execution.
  • Coordinate Between Teams: They aid in coordination among architects, engineers, and contractors.
  • Compliance: They ensure that the project meets code and client requirements.

Step-by-Step Guide to Creating Basic Shop Drawings

Step 1: Understand the Project Requirements

Before creating shop drawings, review the architectural and engineering design drawings carefully. Identify what needs to be detailed and gather any required standards, client specifications, or manufacturer data.

Key tips:

  • Clarify with the design team if any information is missing.
  • Understand material types, tolerances, and finishes.

Step 2: Choose the Right Software

Use a CAD (Computer-Aided Design) software that supports detailed drawing creation. Popular options include AutoCAD, Revit, SolidWorks, or Inventor.

For beginners, AutoCAD is often a good starting point for 2D shop drawings, while Revit or SolidWorks may be better suited for 3D or complex mechanical parts.

Step 3: Start With a Template

Most companies use standardized drawing templates that include:

  • Title block (project info, company logo, date, etc.)
  • Drawing number and revision history
  • Scale and legend
  • Notes and general specifications

Using a template ensures consistency and reduces time spent on formatting.

Step 4: Draft the Views

Start drawing the component from multiple angles:

  • Plan view (top-down)
  • Front and side elevations
  • Sectional views (if needed)

Make sure each view includes:

  • Accurate dimensions
  • Labels and annotations
  • Scale indication

Step 5: Add Dimensions and Details

This is where shop drawings shine. Include:

  • Overall dimensions (length, width, height)
  • Hole sizes and placements
  • Weld symbols
  • Material callouts
  • Surface finishes
  • Assembly or installation instructions

Every measurement should be precise, avoiding ambiguity.

Step 6: Include Notes and Specifications

Add any notes that clarify installation procedures, assembly steps, or tolerances. If you’re working with electrical or plumbing components, include code compliance and performance details.

Examples:

  • “All dimensions in mm unless otherwise specified.”
  • “Welds to be continuous unless noted.”

Step 7: Perform a Quality Check

Before submitting, double-check:

  • Are all necessary views included?
  • Are dimensions and labels clear and complete?
  • Are notes, materials, and symbols correct?
  • Does the drawing comply with project standards?

Ask another team member to review the drawing for quality assurance.

Step 8: Submit for Approval

Send the completed shop drawings to the engineer, architect, or project manager for review. Be prepared to make revisions based on their feedback.

Best Practices for Shop Drawings

  • Be consistent with scales and units
  • Use standard drawing conventions and symbols
  • Label everything clearly
  • Avoid over-cluttering the drawing
  • Document revisions clearly

Following these practices ensures your shop drawings are not just accurate but also easy to understand for anyone using them.

Conclusion

Creating accurate and professional shop drawings is essential for the success of any engineering or construction project. By following this step-by-step guide, you can ensure that your drawings are clear, complete, and meet the necessary standards. As your experience grows, so will your efficiency in producing high-quality shop drawings that are both functional and compliant.

Who prepares shop drawings?

Shop drawings are typically prepared by contractors, fabricators, or manufacturers. Sometimes specialized CAD drafters or engineers are hired to create them.

What’s the difference between shop drawings and construction drawings?

Construction drawings show the design intent, while shop drawings detail how components will be fabricated and installed based on that design.

Do shop drawings require engineer approval?

Yes. Most shop drawings must be reviewed and approved by the project’s architect or engineer before fabrication or construction can proceed.

What information should be included in shop drawings?

A basic shop drawing includes:

Dimensions and views
Material specifications
Fabrication or installation details
Notes and standards
Title block and revision history

Can shop drawings be created in 3D?

Yes. Many industries now use 3D models to generate detailed shop drawings, especially in mechanical and structural applications.

Why are shop drawings rejected sometimes?

Common reasons include:
Missing or incorrect dimensions
Lack of clarity
Inconsistencies with design drawings
Non-compliance with standards
Always double-check before submission to avoid delays.