A free, steel-focused alternative to SkyCiv with a built-in 3D CAD editor
SkyCiv is a web-based structural analysis tool, but its free tier is limited to 5 nodes and 2 members — and full access costs $1,200+/year. CalcSteel offers free steel structural analysis with unlimited complexity, a built-in 3D CAD editor, pre-built structure templates, 1140+ steel profiles, and design checks per 41 international codes. Purpose-built for steel, free to start.
Price
Platform
Installation
Free Tier
Industrial Warehouse
SkyCiv's free tier is heavily limited (5 nodes, 2 members). CalcSteel lets you run full structural analysis for free — unlimited nodes, unlimited members, real design checks.

CalcSteel includes a built-in 3D CAD editor where you draw structures directly — nodes, bars, supports, loads — all in one interface. SkyCiv uses a spreadsheet-style input that requires manual coordinate entry.
Industrial Warehouse
CalcSteel comes with ready-to-use structure templates (portal frames, warehouses, industrial buildings) that you can load, customize, and calculate in seconds. SkyCiv requires building everything from scratch.
You save R$5,282/yr with CalcSteel Pro
Start designing steel structures for free — no download, no license, no commitment.
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