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concreteproperties is a python package that can be used to calculate the section properties of arbitrary reinforced concrete sections. concreteproperties can calculate gross, cracked and ultimate properties. It can perform moment curvature analyses and generate moment interaction and biaxial bending diagrams. On top of this, concreteproperties can also generate pretty stress plots!

Here’s an example of some of the non-linear output concreteproperties can generate:



You can install concreteproperties via pip from PyPI:

pip install concreteproperties

See Installation for more information.


See the complete list of concreteproperties features here.


Contributions are very welcome. To learn more, see the Contributor Guide.


Distributed under the terms of the MIT License concreteproperties is free and open source software.


Found a bug 🐛, or have a feature request ✨, raise an issue on the GitHub issue tracker. Alternatively you can get support on the discussions page.

Legacy Documentation#

The documentation for concreteproperties v0.5.x and earlier can be found here.


concreteproperties is an open source engineering tool that continues to benefit from the collaboration of many contributors. Although efforts have been made to ensure the that relevant engineering theories have been correctly implemented, it remains the user’s responsibility to confirm and accept the output. Refer to the License for clarification of the conditions of use.