Tekla, SDS2, and Advance Steel – Best Steel Detailing Software

Choosing the right steel detailing software can make or break your project timeline, cost, and accuracy. Among the top players in the industry, Tekla Structures, SDS2, and Autodesk Advance Steel are the most widely used solutions for structural steel detailing, modeling, and fabrication drawings.

Each tool is powerful—but they’re not identical. The “best” choice depends on your project type, team size, workflow, and budget. Let’s break them down clearly so you can decide with confidence.

1. Overview of Each Software

Tekla Structures

Tekla Structures is a full-fledged BIM platform known for its ability to handle very large, complex industrial and commercial projects. It supports steel, concrete, and mixed-material structures with high accuracy.

• Strong in clash detection, multi-material modeling, and constructability.

• Widely used by major fabricators, EPC companies, and design consultants.

• Excellent for projects like high-rise buildings, bridges, plants, and heavy industrial structures.

SDS2

SDS2 is known for its intelligent steel connection design and detailing. It doesn’t just model members; it actually designs connections based on codes and loads, which saves huge engineering time.

• Strong in automatic connection design and fabrication-oriented modeling.

• Popular among fabricators and detailers focused heavily on steel connections.

• Great for steel buildings, industrial sheds, and projects where connection design is critical.

Autodesk Advance Steel

Advance Steel is a steel detailing extension on top of AutoCAD. It’s ideal for teams already comfortable with the Autodesk ecosystem.

• Familiar environment for AutoCAD users.

• Great 3D modeling plus automated shop drawings and NC files.

• Works well with Revit, Plant 3D, and other Autodesk tools, making it good for BIM collaboration.

2. Feature-by-Feature Comparison

A. Modeling & Detailing Capabilities

• Tekla Structures:

  • Advanced 3D modeling for steel, concrete, and mixed materials.

  • Handles very large models with thousands of members.

  • Extensive library of connections, macros, and custom components.

  • Highly accurate shop drawings, GA drawings, and reports.

• SDS2:

  • Focused mainly on structural steel.

  • Very strong in automatic connection modeling based on code.

  • The model is highly “fabrication-aware,” reflecting realistic constructability.

  • Produces detailed erection and shop drawings tailored for steel fabricators.

• Advance Steel:

  • 3D steel modeling within AutoCAD environment.

  • Good for small to medium complexity structures.

  • Connection library is solid but not as advanced as Tekla or SDS2 for auto-design.

  • Generates drawings, bills of material, and NC files efficiently.

Verdict:

• For complex, multi-material projects → Tekla Structures.

• For connection-driven steel projects → SDS2.

• For small/medium projects & AutoCAD-based workflows → Advance Steel.

B. Connection Design & Engineering Intelligence

• Tekla Structures:

  • Very flexible connection macros and custom components.

  • Can integrate with external design tools or plugins for connection design.

  • Great control but sometimes more manual engineering input is needed.

• SDS2:

  • This is SDS2’s biggest strength.

  • Automatically designs and details connections based on design codes and load inputs.

  • Reduces engineering time and helps with faster approvals.

• Advance Steel:

  • Good catalog of parametric connections.

  • Mainly rule-based; engineering design often happens in separate structural analysis software.

Verdict:

• For code-based automatic connection design → SDS2 is king.

• For flexible but semi-manual connections → Tekla.

• For standard connections on mainstream projects → Advance Steel.

C. BIM Integration & Interoperability

• Tekla Structures:

  • Strong BIM capabilities.

  • Imports/exports IFC, CIS/2, DWG, and many other formats.

  • Connects well with analysis and design tools (STAAD, SAP2000, ETABS, etc.).

  • Great for multi-disciplinary coordination.

• SDS2:

  • Good interoperability with fabrication and detailing workflows.

  • Supports industry-standard formats, but BIM collaboration is more steel-centric.

• Advance Steel:

  • Deeply integrated with Autodesk ecosystem: Revit, Plant 3D, Navisworks, etc.

  • Great for companies already using Autodesk for architecture, MEP, and plant design.

Verdict:

• For full BIM collaboration across disciplines → Tekla or Advance Steel (if Autodesk-heavy).

• For steel-focused workflows with fabricators → SDS2.

D. Learning Curve & Usability

• Tekla Structures:

  • Very powerful, but with a steep learning curve.

  • Best suited for dedicated detailing/BIM teams willing to invest time in training.

• SDS2:

  • Interface is focused on steel detailers and connection engineers.

  • Still needs proper training but is very efficient once mastered.

• Advance Steel:

  • Easiest transition for AutoCAD users.

  • Shorter learning curve if your team already uses Autodesk tools.

E. Licensing & Cost (High-Level View)

Pricing varies by region, package, and licensing model, but generally:

• Tekla Structures: Higher cost; suited for medium–large organizations and complex projects.

• SDS2: Mid-to-high pricing; excellent value for fabricators focusing on connection design and detailing.

• Advance Steel: Often more affordable, especially for smaller companies and those already using Autodesk products.

3. Which Software Is Best for You?

Here’s a quick decision guide:

• Choose Tekla Structures if:

  • You work on large, complex, or multi-material structures.

  • BIM coordination, clash detection, and constructability are major priorities.

  • You need a robust platform that scales as your projects grow.

• Choose SDS2 if:

  • You are a steel fabricator or detailing firm heavily focused on connection design.

  • You want automatic, code-based connections to save engineering hours.

  • Your core work is steel buildings, industrial sheds, frames, and similar structures.

• Choose Autodesk Advance Steel if:

  • Your team is already fluent in AutoCAD and other Autodesk tools.

  • You handle small to mid-size steel projects.

  • You want solid detailing capabilities without the complexity of a massive BIM platform.

In many cases, companies even use a combination: for example, design in Revit, detail in Advance Steel, or coordinate in Tekla while fabricating from SDS2 outputs. Your choice should align with your workflow, client expectations, and long-term roadmap.

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