Design sections without the spreadsheet gymnastics.
Stella distills concrete section analysis into a clean, engineer-first flow—so you can stay focused on engineering, not managing cells.
Built by practising engineers who still sign off on drawings, Stella offers transparent calculations and diagrams you can trust.
Launches the sandbox environment in your browser. No account required.
Your section design, visualised instantly
Input geometry, materials, and load cases — Stella returns transparent interaction diagrams, moment-curvature and bending analysis (ULS and SLS) in one place.
Full calculation breakdown included—copy straight into your design report.
From creation to results in two minutes
Define materials → create a section → input reinforcement/prestress → review results → export
Why practising engineers switch to Stella
Clarity you can defend
Every check includes load assumptions, code references, and pass/fail criteria so reviews stay focused on engineering—not reverse-engineering spreadsheets.
Built by practising engineers
The team still signs off on projects. We design workflows around how engineers actually iterate, document, and collaborate.
Faster iteration loops
Adjust reinforcement, re-run the check, and export the updated section in minutes—without bouncing between desktop suites.
Engineers already iterating faster with Stella
“The sandbox made it obvious in the first five minutes—clear diagrams, quick checks, and I can attach the output straight to our calcs.”
Principal Engineer, Melbourne
“We replaced a mess of spreadsheets with Stella. Junior engineers now run their own iterations and I still get the transparency I need.”
Technical Director, Sydney
Built by engineers who were tired of clunky tools
We designed Stella after years of juggling spreadsheets, desktop suites, and manual reporting. Our goal: deliver a transparent, enjoyable workflow that helps practising structural engineers produce better designs faster. Every feature is tested on real projects before it ships.
What's coming next
We are expanding the sandbox with composite sections, shear, file sharing, deeper report outputs, and an AI assistant - so you can move even more of your workflow out of spreadsheets.
Ready to run your first section?
Create an account when you are ready to save your design.
alpha
*Not for commercial use
© 2025 stella. All rights reserved
Validation
