tldr: Most "AI estimating" tools either do beams well and columns poorly, or aren't built for steel at all. This is a straight comparison of the real options in 2026: SketchDeck, Steel Genie, Beam AI, the Bluebeam and Tekla status quo, and Ferra.

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Full disclosure before anything else: we build Ferra, one of the tools in this comparison. We've tried to be straight about where each option is strong, where it's weak, and who it actually fits, including ourselves. If you only want our pitch, book a demo. If you want the honest lay of the land first, keep reading.

Here's the problem every steel estimator runs into right now. Every tool says it does AI structural steel takeoff. Every demo looks clean. Then you run a trial and find out the columns don't detect, or the revision tool double-counts, or the whole thing was really built for general contractors and pointed at steel as an afterthought. Plenty of AI construction estimating software is genuinely good, just not for structural steel. So this is the comparison we wished existed when we started. Heading into the second half of 2026, the genuinely steel-specific options still come down to a short list, which is why this one stays focused.

How we compared them

We weighed each tool on what actually matters for a structural steel estimating workflow:

• Built for steel, or for everyone? Steel is niche. Tools built for general contractors rarely handle it well.

• Beams and columns. Beams are easy. Columns, especially without a column schedule, are where tools fall apart.

• Revisions. Can it compare two sets and report what changed without double-counting beams?

• Scope. Misc steel, connections, and the rest, not just main members.

• Pricing model. Seat-based, per-takeoff, or flat.

• Support and roadmap. In a fast-moving space, how quickly the team ships matters as much as today's feature set.

SketchDeck

The first mover and the most established name in AI steel takeoff software. If you want the vendor that has been at it longest, this is it. Beam takeoff is solid.

Where it falls short: estimators we've talked to find column detection inconsistent, which matters because columns are the hard part. One described the trial this way, and it stuck with us: every vendor says "we do columns, we do columns, we do columns," and then you run it on a real set and it turns out to be "yeah, we do columns, kinda." Its seat-based pricing has also drawn pushback from smaller shops, and the pace of new features has been slow for a tool that has been around several years.

Best for: shops with beam-heavy workflows that want the most established name.

Steel Genie

Newer, and backed by AllPlan, a Nemetschek company (the same group that owns Bluebeam). Its strength is the tie-in to SDS2 for downstream detailing, so if your shop already lives in that ecosystem, the handoff is clean.

The limitations: scope is narrower today, with limited handling of miscellaneous steel like trusses and braces, and revision handling is weak. You often re-run a project per version rather than getting a clean diff. It is also brand new, so there is little independent track record yet.

Best for: shops already committed to SDS2 and the AllPlan ecosystem.

Beam AI

Broad and well established, with a large user base. The important distinction: it is closer to a service than a tool you fully drive yourself. Takeoffs are delivered, often QA-reviewed, on a turnaround rather than produced live at your desk. It also spans every trade, not just steel.

The trade-off: it is not steel-specific, and the delivered-takeoff model means you wait on a turnaround instead of running it yourself. For a steel fabricator who wants control and speed, that is a different workflow than a steel-native tool.

Best for: general contractors and multi-trade contractors who want takeoffs delivered to them.

The incumbent stack (Bluebeam, Tekla, and fab-management software)

Not AI estimating tools, but the reality of how most shops still work. Bluebeam is the trusted standard for markup and manual takeoff. Tekla covers detailing and fabrication management. Alongside them sit the established fab-management and detailing platforms with estimating modules built in: Tekla PowerFab, STRUMIS, SDS2, and FabSuite. All are deep, proven, and widely used.

The downside: none of these is AI-native. The takeoff itself is still manual, which is the time sink this whole category exists to fix. Feature pace is slow, and support is a common complaint.

Best for: shops not ready to change their workflow yet.

Ferra

Our tool, so weigh this accordingly. Ferra is built only for structural steel. It detects beams and columns across the full drawing set with the estimator reviewing every number, compares revisions without double-counting, and includes bid intelligence to help with the go or no-go call before you commit estimator hours. Pricing is revenue-based with unlimited users and projects, and we ship updates fast.

Where we fall short: we are newer and a smaller team than the incumbents. Some scope is still maturing, including parts of miscellaneous steel and connections, and we deliberately do not do engineering or reactions. We would rather tell you that now than in a trial.

Best for: structural steel fabricators who want a steel-native AI tool and a vendor that ships quickly.

At a glance

Other tools you'll come across

A few well-funded AI takeoff platforms show up in steel searches even though they're built for all of construction, not steel specifically. Kreo and STACK both do AI-assisted takeoff across trades and can pull steel quantities from drawings. Togal AI is a funded construction-AI company, strongest on architectural and space takeoffs. You will also run into established digital takeoff tools like eTakeoff and FastCAM, which have steel modules but keep the takeoff manual rather than automating it. They're all capable and worth knowing about. The catch is the same one that runs through this whole comparison: a tool built for all of construction, or one that still counts by hand, tends to miss the steel-specific scope a fabricator actually bids, which is exactly why steel-native tools exist.

How to choose for your shop

Skip the feature checklist and start with two questions.

First, is the tool built for steel or for everyone? A general-contractor takeoff tool pointed at steel will cost you in missed scope, where steel fabrication estimating software is built for the way a fab shop actually works. Second, how does it handle columns and revisions? Those are the two places tools quietly break, so make them the first thing you test, on one of your own projects, not the rehearsed demo file.

If you are deep in SDS2, Steel Genie's integration is worth a look. If you want takeoffs delivered and you work across trades, Beam fits. If your workflow is beam-heavy and you want the most established name, SketchDeck fits. If you want a steel-native AI tool that handles columns and revisions with the estimator in control, that is the gap we built Ferra to fill. For the underlying mechanics, our guide to structural steel estimating covers how the workflow should actually run.

How to test these tools before you buy

Whatever shortlist you land on, do not judge a tool on its demo file. Test it the way you would trial-hire an estimator: on your own work, under your own conditions.

• Run the same project set through every tool. Pick one real job, ideally a messy one with no column schedule, and put it through each option you are considering. Running the identical set is the only apples-to-apples read you will get, and it surfaces what a rehearsed demo hides.

• Test columns, not beams. Beams are easy. Columns without a schedule are where tools quietly fall apart, so make that the first thing you check.

• Push on revisions. Feed it two versions of a set and see whether it reports what actually changed without double-counting beams.

• Watch the verification step. You want the estimator reviewing the output, not trusting it blind. A tool that hides its confidence scores is hiding something.

The point is simple. A tool that looks great on a clean demo and falls over on your own messy set was never going to save you time on the jobs that matter.

FAQs

What is the best structural steel estimating software in 2026?

It depends on your shop. For a steel-native AI tool that detects beams and columns with the estimator reviewing every number and compares revisions without double-counting, Ferra is the strongest fit for structural steel fabricators. For multi-trade general contractors who want takeoffs delivered, Beam AI fits. For a beam-heavy workflow from the most established name, SketchDeck is a strong fit.

Is there AI steel takeoff software that actually does columns?

Columns are the hardest part of any structural steel takeoff, especially without a column schedule, and many tools that claim columns handle them poorly. Test it directly: run one of your own projects and check column detection before you believe any other claim. Ferra detects beams and columns across the full set with the estimator confirming the output.

What is the difference between Ferra and SketchDeck?

SketchDeck is the older, more established option and is strong on beam takeoff. Ferra is newer, built only for structural steel, and focuses on the harder parts: column detection, revision diffing without double-counting, and go or no-go bid intelligence. SketchDeck uses seat-based pricing; Ferra uses revenue-based pricing with unlimited users.

How much does structural steel estimating software cost?

Models vary widely. Some tools charge per seat, some per takeoff, and some use a flat or revenue-based subscription. Seat-based pricing can get expensive as your team grows, which is why some shops prefer a model with unlimited users. Always confirm whether users, projects, and pages are capped before you compare prices.

Can AI replace a steel estimator?

No, and be wary of any tool that implies it can. The estimator's judgment is what decides a bid. Good structural steel estimating software automates the counting, sheet-stitching, and revision-diffing, then leaves the number and the call to the estimator. Trust, but verify.

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Want to see how Ferra handles your columns and revisions? Book a demo and we'll run it on one of your own projects.