Pricing

CalcSteel Pricing: Free, Starter and Pro Plans

Start free, upgrade when you need to save and generate sheets.

On the annual plan the AI quota still arrives every month, and you can bring next month's forward when you reach 80%. Learn more

New82x more AI on Pro

AI builder inside the editor

The AI builder comes with the platform, at the same price. On Free you try it out, on Starter it comes with 16x the Free quota every month, and on Pro with 82x, plus extra credits if you need them.

How AI works in the plans →
  • Draws the structure from a conversation
  • Reads photos, sketches and project PDFs
  • Fixes the open project when you ask

Free

$0
AI builder to try out

Full 3D editor, 1,140+ profiles, 25 free analyses (one-time). No credit card.

Start Modeling

Starter

$22/mo
AI builder: 16x the Free plan, every month

50 analyses/month, unlimited projects, 2 sheets, clean PDF export.

Cancel anytime

Most Popular

Pro

$52/mo
AI builder: 82x the Free plan, every month

Unlimited analyses & sheets, company logo, priority support.

Cancel anytime

Questions about the quota, renewal or extra credits? How AI works in the plans →

Compare all features

48 of 63 features included in the Free plan

FeatureFreeStarter
Most PopularPro
AI builderNew
Draw the structure by talking to the AI
trial
Read photos, sketches and project PDFs
trial
Fix the open project by conversation
trial
AI quota renewed every month
Larger monthly AI quota
82x the Free plan
Extra AI credits when the quota runs out
3D Modeling
Unlimited bars & nodes
Chain mode (sequential bar drawing)
Move, copy & mirror elements
Divide bars into segments
Full snap system (7 modes)
Selection filter by object type
Unlimited undo/redo
Configurable grid
ViewCube 3D navigation
Full keyboard shortcuts
Profiles & Materials
1,140+ steel profiles (W, C, U, L, RHS, SHS, CHS)
AISC, Eurocode, NBR, IS & SANS catalogs
98 pre-defined materials
Hot-rolled, cold-formed, stainless & aluminum
Unlimited labels/classes per profile
Double profiles (back-to-back, box)
Profile rotation per bar
3D extruded profile visualization
Parametric Generators
Truss generator (Pratt, Warren, Howe...)
Warehouse/shed generator
Lattice column generator
24 ready-to-use templates
Regional templates (India, Europe, Brazil)
Loads & Supports
Point loads (nodal forces)
Distributed linear loads
Trapezoidal loads
Area loads (on panels)
Automatic self-weight
4 load natures (permanent, variable, wind, seismic)
Fixed, pinned, roller & custom supports
Global & local coordinate systems
Structural Analysis
3D FEM solver — 6 DOF per node
25
50/mo
∞
Force diagrams (N, Vy, Mz, My)
Support reactions
Automatic load combinations
Wind analysis (8 codes: NBR, ASCE, EC1, AS, IS...)
Seismic analysis (6 codes: ASCE 7, EC8, IS 1893...)
Design Verification
41 design standards
Auto-check: tension, compression, flexure, shear, LTB, local buckling, combined
OK/FAIL color-coding per bar
Per-bar verification report (click any bar)
AISC 360, NBR 8800, Eurocode 3, AS 4100, IS 800, CSA S16, SANS 10162 + 26 national variants
Views & Sheets
2D views (front, side, top, isometric)
Sheets per project
1
2
∞
Paper sizes A4 to A0
Customizable title block
Class summary table
Parametric connection details (4 types)
Company logo on sheets
Export
PDF project report
watermark
DXF R2010 (AutoCAD)
IFC 2x3 (Revit, Tekla, ArchiCAD)
Bill of Materials (CSV)
Projects & Account
Cloud-saved projects
3
∞
∞
Analyses per month
25
50/mo
∞
7 languages (EN, PT, ES, FR, BN, AR)
Priority support

48 features included free — no credit card, no time limit