Advance Steel vs Tekla: Which Is Better for Steel Detailing?

Advance Steel or Tekla is one of the first questions people ask when they get into steel detailing. Most of what I write on this site is about Advance Steel, so keep that in mind as you read. I’ll try to be fair to Tekla and tell you where it’s the better choice.

Short answer: both Advance Steel and Tekla Structures are full steel detailing programs that take you from a 3D model to shop drawings, bills of material and CNC files. Advance Steel (Autodesk) runs on AutoCAD and is the easier step for AutoCAD and Revit users. Tekla (Trimble) is a standalone program known for handling very large, multi-user models. The better choice is usually whichever one your fabricator, your team and your clients already use.

Below I compare them where it matters for actual detailing work: learning curve, modeling and connections, drawings and NC files, working with Revit, teamwork on big models, cost, and which one to learn for a job.

What’s the difference between Advance Steel and Tekla?

Both programs do the same job. The differences are in where they come from, how they work, and the ecosystem around them.

	Advance Steel	Tekla Structures
Company	Autodesk	Trimble
Platform	Runs on AutoCAD	Standalone program
Feels familiar to	AutoCAD and Revit users	Users of other model-first BIM programs
Main exchange with Revit	Advance Steel Extension for Revit (SMLX)	IFC and Trimble’s own Revit tools
Connections	Connection Vault with parametric connections	Component library, plus Tekla Warehouse add-ons
Drawings	AutoCAD DWG drawings from drawing styles and processes	Tekla drawings from its own drawing system
Multi-user	Not compared here	Tekla Model Sharing included in subscriptions
Licensing	Autodesk subscription	Trimble subscription (Carbon, Graphite, Diamond)
Operating system	Windows	Windows
Student access	Free Autodesk education plan	Free Tekla Student subscription

Which is better, Tekla or Advance Steel?

Neither is better across the board. Both can produce a complete, professional shop drawing package. What makes one a better fit than the other:

Advance Steel tends to fit better if:

You or your office already work in AutoCAD.
The engineers you work with send Revit models.
You’re a small shop or a one-person detailing business and want to stay in the Autodesk world.
You like being able to fix up a drawing with plain AutoCAD tools.

Tekla tends to fit better if:

You’re joining a company or detailing group that already runs Tekla.
Your jobs are very large, and several detailers need to work in the same model at the same time.
You want access to the Tekla Warehouse and a large ecosystem of shared tools.
You do a lot of precast or concrete detailing alongside steel.

The honest answer: don’t pick based on a feature list. Pick based on who you’ll be exchanging models with, and what the people paying you expect.

Is Tekla harder to learn than Advance Steel?

For an AutoCAD user, Advance Steel is usually easier at the start. You open it and you’re in an AutoCAD window with steel tabs added to the ribbon. Your commands, snaps and habits still work, and you can fall back on plain AutoCAD drawing tools whenever you need them. I keep a list of the basic CAD commands I use in Advance Steel.

Tekla has a steeper start if you come from AutoCAD, because nothing looks familiar. Views, the model, drawings and reports all work its own way. The flip side is that everything in it was built for detailing, not general drafting, and it can be customized a lot.

If you’re starting with no CAD background at all, the difference is smaller. You’ll be learning a new way of working either way.

In both programs, the software isn’t the hard part. Knowing steel is: how connections work, what the shop needs on a drawing, and what fits in the field.

How do modeling and connections compare?

Both model the same things: members from standard section catalogs, plates, bolts, welds, cuts and copes, stairs, railings, ladders and gratings. Both have big libraries of parametric connections you place, adjust and copy to similar joints.

In Advance Steel, the Connection Vault covers the everyday connections: base plates, shear plates, clip angles, gusset plates, bracing and more, plus dedicated tools for stairs, railings and ladders. When a connection doesn’t exist, you build it from plates and bolts and then copy it to the other joints. You can also create custom profiles when a shape isn’t in the library.

In Tekla, the equivalent is the component library. This is one area where Tekla has a real advantage: the Tekla Warehouse, where Trimble and users share extra components and tools, and an open API that lets companies build their own. Advance Steel can be customized too (custom connections, profiles, drawing styles), but Tekla’s ecosystem of shared add-ons is bigger.

One thing that’s true in both: the program places the connection; it doesn’t make it right. Connection design belongs to the engineer of record.

How do drawings, BOMs and NC files compare?

This is the part that pays the bills, and both do it well. In both programs you number the model, generate single-part and assembly drawings, produce erection drawings and anchor bolt plans, and export a bill of material and DSTV/NC files for the saw, drill line or plasma table.

Here’s what the process looks like in Advance Steel:

Tekla is known for strong drawing automation and reporting on large jobs. Advance Steel’s drawing styles, drawing processes and Document Manager do the same job. Because Advance Steel drawings are AutoCAD DWGs, it’s easy to touch one up with regular AutoCAD tools when a reviewer wants something shown a particular way.

Which one works better with Revit?

Advance Steel has the more direct link, because both are Autodesk products. The free Advance Steel Extension for Revit exports the engineer’s model to SMLX for import into Advance Steel, and design changes can be synchronized later instead of re-imported. I go through that workflow step by step in Advance Steel vs Revit.

Tekla works with Revit through IFC and Trimble’s own Revit tools, and it’s very good at handling large shared models.

For design review and clash checking with other trades, you can export an Advance Steel model to Navisworks. Here’s how to export Advance Steel to Navisworks.

Can several detailers work on the same model?

On big jobs this matters a lot. Tekla’s answer is Tekla Model Sharing, which lets several people work on one model from different locations. According to Trimble, Model Sharing and Trimble Connect Business Premium are included in the Carbon, Graphite and Diamond subscriptions.

If you’re a one- or two-person office, this probably isn’t a deciding factor. If you’re joining a large detailing group, ask what they use and how they split up models.

How much do Tekla and Advance Steel cost?

I’m not quoting prices, because they change and depend on your country, your reseller and what’s bundled. Here’s how each one is sold:

Advance Steel is an Autodesk subscription.
Tekla Structures is a Trimble subscription in three configurations, Carbon, Graphite and Diamond, each one adding more features than the last. Subscriptions are named-user licenses.

Get current quotes for both, and ask what’s included. The configuration you need for steel fabrication output matters for Tekla.

Can you get Tekla or Advance Steel for free?

Not for paid work, but you can learn either one for free:

Advance Steel: a free trial (typically 30 days), and free one-year access through the Autodesk education plan for eligible students and educators.
Tekla: a free trial, and a free Tekla Student subscription valid for 365 days. Trimble notes that the educational version excludes the steel and precast fabrication functionality and watermarks drawings and reports.

Both education licenses are strictly non-commercial.

What computer do you need for Tekla or Advance Steel?

Both are Windows programs. Advance Steel 2026 needs 64-bit Windows 10 or 11 (8 GB RAM minimum, 32 GB recommended), and Tekla Structures 2025 runs on Windows 11 and 64-bit Windows 10. Neither has a Mac version. For real projects, more RAM and a good graphics card make the biggest difference with both. See what is Advance Steel for the full Advance Steel requirements, and my toolbox page for the hardware I use.

What about SDS2?

SDS2 is the other big name in steel detailing, and it shows up in the same searches. I don’t cover it on this site and won’t pretend to compare it in detail. If you’re choosing a program for a new detailing business, it’s worth looking at all three.

How to test both programs before you decide

If you’re choosing for a business, don’t decide from articles (mine included). Both have free trials, so run the same small test job in each. Here’s the test I’d use, because it covers the work you’ll actually be paid for:

Set up a project with your units and a grid of three bays by two bays, with two levels.
Model a small frame: columns, beams, a couple of braced bays.
Place three connection types you use all the time, for example a base plate, a shear tab and a clip angle. Then copy them to every similar joint.
Model a simple stair with a landing and a rail. Stairs and rails show you quickly how much a program helps or fights you.
Number the model and make erection drawings, assembly drawings and single-part drawings.
Export a bill of material and NC/DXF files, and send the NC files to whoever runs the machines in your shop to make sure they load.
Make a revision: change a beam size and move a column. See what updates on its own and what you have to fix.
Bring in an outside model, a Revit or IFC file from an engineer, and see how much cleanup it needs.

Time each step. The program that gets you through steps 5 to 7 with the least fighting is probably your answer.

Questions to ask before you buy

What do your fabricators use? If you detail for several shops, what do they expect to receive?
What file formats do the shop’s machines take? Both programs export DSTV/NC and DXF, but check with the machine software.
What drawing standards do your clients want? Plan on time to set up drawing styles either way.
What local support and training is available? A good reseller or a local user group helps a lot in the first year.
Who sends you models? If it’s mostly Revit, that leans toward Advance Steel; if it’s mostly IFC from mixed sources, it matters less.

Should I learn Tekla or Advance Steel to get a job?

Look at who’s hiring where you want to work. Check job listings for detailing companies and fabricators in your area and see which program they ask for. That beats any comparison article, including this one.

A few general points:

If you already know AutoCAD, Advance Steel gets you productive faster.
If the companies near you run Tekla, learn Tekla.
Whichever you learn first, the second one is much easier. Members, connections, numbering, drawing styles and NC files are the same ideas in both.

Can you switch from Advance Steel to Tekla (or the other way)?

Yes. Models can be exchanged through IFC, and the real skill (knowing how to detail steel) carries over completely. Expect some time to rebuild your drawing standards, templates and custom connections in the new program; that setup is usually the biggest cost of switching, more than the learning itself.

My take

For a small shop or a one-person detailing business that already uses AutoCAD and gets Revit models from engineers, Advance Steel is the natural choice. It gets you from model to drawings to NC files, and it fits into the Autodesk tools everyone around you already has.

If you’re going to work for a large detailing company running big projects in Tekla, learn Tekla. The best software is the one your team and your clients already use.

Either way, learn it on a small real project: a simple frame with a few connections, a stair and a full set of shop drawings will teach you more than any comparison. My Advance Steel mini tutorial series is a good way to do that in Advance Steel.