alpha

*Not for commercial use

The future of
section analysis

Design reinforced and prestressed concrete sections without the expensive licensing fees.

Why should you try stella?

You do the engineering. We'll provide the tools. We'll try not to get in your way through a fantastic user experience where you still feel like you're in the driver's seat.

Transparent results

Drill down into the results to give you confidence.

Always up-to-date

No need to have the IT department install software for you. No backwards compatibility issues. It's all in the cloud.

Any shape you like

Input coordinates to define custom shapes of any geometry

Extensive section library

Standard beam libraries built-in to speed up the design process.

Version control built-in

Say goodbye to dozens of up-revved files - version control is made easy so you know you're always working on the correct file.

Blazingly fast support

We handle all requests for feedback, bugs, support and features ourselves. You'll be speaking to a real engineer in to help solve your problem.

Ultimate bending analysis

The classic ultimate moment capacity. With axial loads, biaxial, you name it.

Interaction diagrams

Plot and export gorgeous moment-axial interaction diagrams for column and pile design.

Our story

Built by engineers,
for engineers

Perhaps you can relate to this: as practising structural engineers, we grew tired of the tools that could perform section analysis.

The few tools that do exist were expensive, clunky and could never quite do exactly what we needed them to do.

Spreadsheets were fine, but it was hard to trust anything you didn't develop yourself, the user interface wasn't great, and we've all made errors through a cell formula.

So we decided to build stella.

For our work; for your work; for all of us structural engineers.

Mustafa C

Co-founder and Bridge Engineer

Luke W

Co-founder and Bridge Engineer

Get in on the ground floor

We're just getting started. Here's what's coming soon for stella.

SLS analysis

Perform cracked and uncracked section analysis to determine concrete and steel stresses.

Prestressed sections

All the other features, but now with prestress!

Moment-curvature

Calculate moment-curvature plots and export them to include in your analysis models.

What are you waiting for?

alpha

*Not for commercial use

© 2025 stella. All rights reserved