CalcSteel vs Ftool
Everything Ftool does — plus 3D modeling, steel design checks, and a modern web interface
Ftool is a popular free 2D structural analysis tool, but it's limited to plane frames without code verification. CalcSteel extends beyond 2D: full 3D steel structure modeling, automatic design checks per NBR 8800, AISC 360, and Eurocode 3, a catalog of 1140+ steel profiles, and a modern browser-based editor. If you've outgrown Ftool and need 3D steel design, CalcSteel is the next step — and it's free to start.
At a Glance
Price
Platform
Installation
Free Tier
Feature Comparison
Why Engineers Choose CalcSteel
Industrial Warehouse
Full 3D — Not Just 2D Frames
Ftool is an excellent 2D analysis tool, but real structures are three-dimensional. CalcSteel lets you model, analyze, and verify 3D steel structures with a modern web-based editor.
Steel Design Checks Built In
Ftool performs structural analysis (forces, displacements) but doesn't verify members against design codes. CalcSteel checks every bar against NBR 8800, AISC 360, Eurocode 3, AS 4100, or IS 800 — showing utilization ratios and governing checks.
Industrial Warehouse
No Download — Works in Your Browser
Ftool requires downloading and installing a desktop application. CalcSteel runs entirely in your browser — open the link and start designing. Works on any OS, including Chromebooks and tablets.
Both offer free options — CalcSteel gives you more
Frequently Asked Questions
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Start designing steel structures for free — no download, no license, no commitment.
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