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Source: https://www.quantumsteeldesign.com/videos/shop-drawings-vs-erection-drawings/

Steel drawings explainer · 0:53

# Shop Drawings vs Erection Drawings: What Is the Difference?

Learn how structural steel shop drawings support fabrication while erection drawings organize piece placement, orientation, grids, elevations, and field work.

What you will learn

- SHOP: How a piece is fabricated.

- FIELD: Where a piece is installed.

- MARK: Identity connects both views.

- MODEL: The coordinated source.

Published August 9, 2026

[Watch on YouTube ↗](https://www.youtube.com/watch?v=51of0g5PcqA)
[Watch the Short ↗](https://www.youtube.com/shorts/NdUFN4FYXKo)

Practical context

## How shop and erection drawings serve different teams

Shop drawings describe individual parts and assemblies; erection drawings organize shipping pieces within the structure for field installation.

Fabrication and erection documents serve different users. Contract requirements and the controlled release process define what must be issued.

Continue with the data

### Steel shop and erection drawing workflow

Move from the video explanation to the related reference, dimensions, properties, tools, and learning context.

[Open related reference](https://www.quantumsteeldesign.com/learning-hub/steel-detailing-and-drawings/#shop-vs-erection)

Companion reading and practice

## Which drawing answers the question you have?

A training erection plan locates B12 in the frame. Its shop drawing describes the piece to be produced. Looking for fabrication information only on the placement plan can leave essential detail out.

Follow the piece mark between views and verify that both belong to the intended issue. Neither document should be read in isolation from referenced notes and details. Their different purposes also affect which downstream records a revision may change.

### Try it with a sample

Choose one sample mark and write down its placement reference and its fabrication reference.

[Find the mark across the drawing set](https://www.quantumsteeldesign.com/drawing-search/)

Examples are fictional learning exercises. This companion text adds context to the video; the transcript below records the narration.

Primary sources

## References and further reading

- [AISC Code of Standard Practice](https://www.aisc.org/aisc/publications/current-standards/aisc-303/)

Use the edition and requirements adopted for the project. These references support further reading; a short video does not reproduce the complete standards.

Published by Quantum Steel Design. [Sources and editorial approach](https://www.quantumsteeldesign.com/about/#editorial-approach) · [Report a correction](https://www.quantumsteeldesign.com/contact/) · Companion guide updated September 28, 2026.

Accessible transcript

## Shop drawings versus erection drawings transcript

The visible transcript makes the video content available to people and search systems without requiring playback.

- Shop and erection drawings may come from one model, but they serve different users.

- Shop drawings tell the fabrication team how to make an individual part or assembly.

- They show material, dimensions, holes, parts, bolts, welds, finish, quantities, and the piece mark.

- Erection drawings tell the field team where each shipping piece belongs.

- They emphasize grids, elevations, orientation, piece marks, locating dimensions, and field connections.

- One provides fabrication detail; the other provides placement context. Neither should silently substitute for the other.

- AI can compare marks, quantities, and model relationships, but a qualified checker verifies requirements and release status.

- Same steel, different job. Learn the complete detailing workflow at Quantum Steel Design.

Keep watching

## More structural steel detailing and fabrication videos.

[View the complete video library](https://www.quantumsteeldesign.com/videos/)

[0:48](https://www.quantumsteeldesign.com/videos/steel-piece-marks-connect-information/)

September 3, 2026Steel piece-mark explainer

## Steel Piece Marks Connect the Model, Shop, and Field

Learn how structural steel piece marks connect model objects, shop drawings, material, fabrication records, shipping, and erection information.

[Watch with transcript](https://www.quantumsteeldesign.com/videos/steel-piece-marks-connect-information/)
[Watch Short ↗](https://www.youtube.com/shorts/ftIdqgQ2Efw)

[0:51](https://www.quantumsteeldesign.com/videos/steel-rfi-that-gets-answered/)

August 10, 2026Steel coordination explainer

## How to Write a Structural Steel RFI That Gets Answered

Build a useful structural steel RFI with exact source references, one clear issue, requested direction, impact context, and a controlled response record.

[Watch with transcript](https://www.quantumsteeldesign.com/videos/steel-rfi-that-gets-answered/)
[Watch Short ↗](https://www.youtube.com/shorts/4xfiDa9hC88)

[0:56](https://www.quantumsteeldesign.com/videos/what-does-structural-steel-detailer-do/)

August 9, 2026Steel detailing explainer

## What Does a Structural Steel Detailer Do? (60-Second Answer)

Follow engineering intent through coordinated steel geometry, connections, models, shop drawings, erection drawings, material lists, fabrication data, RFIs, and revisions.

[Watch with transcript](https://www.quantumsteeldesign.com/videos/what-does-structural-steel-detailer-do/)
[Watch Short ↗](https://www.youtube.com/shorts/6SOIvFKhgBQ)
