About WebStructural
WebStructural makes free, online structural engineering calculators that show their work: every check comes with the code equation it uses, so you can follow it and check it.
Who builds it
WebStructural is built by Jeff Lutzenberger, a civil engineer and software developer with a background in engineering mechanics and numerical analysis.
How the calculators are built
- Steel follows AISC 360, wood the National Design Specification (NDS), concrete ACI 318, and loads and load combinations ASCE 7. Each tool names the edition it uses.
- Results show the equations and code sections behind each check, not just a pass or fail.
- The design code is covered by automated tests, checked against hand calculations and published examples.
- The tutorials walk through the same methods by hand.
Free and Pro
The calculators are free to use, as much as you like, without an account. Pro adds saved projects, PDF reports and engineered lumber such as glulam, LVL and PSL.
Students get Pro free for a year. Create an account with your school email (.edu), verify it, then email jeff@webstructural.com from that address and we'll turn on Pro. More for students.
A design aid
WebStructural is a tool for engineers, builders and students. Have a licensed engineer check a design before it's built.
Contact
Questions, bug reports and feature requests: jeff@webstructural.com.
Need a tool we don't have? We build custom tools.