Why ENERCALC?
Engineers stick around
- 3 firms have been active subscribers for 41+ years.
- 369 firms for 27+ years.
- 1,695 firms for 13+ years.
- We still have our very first customer from 1982.
- Twenty of the top 25 ENR 2026 Top 500 Design Firms are active users.
Average tenure: 17 years. - Despite those numbers, our typical customer has 2 seats and 10 or fewer engineers.
Small firms are where we live.
Nobody stays 17 years because something was easy to pick up. They stay because every time they open it, the tool still fits.
Hear how Stephen Horne (SCH Engineering, Chattanooga) still saves time with ENERCALC after using it for over 2 decades
It’s built for the work you do every day, so you can get home for dinner on time.
We believe engineers deserve to do the interesting work and go home and have dinner with the people important to them. We’ve spent 44 years making that possible.
Imagine flying into any large city. Hundreds of square miles of low-rise buildings outside the circle around the downtown core, each needing structural calculations. Critically important, but often repetitive work.
Most engineers don’t need a building design system for 90% of this work. They need a tool that handles component-level calculations quickly, reliably, and without fighting the interface.
Our software is the result of a never-ending effort to refine how structural engineering tools approach component design.
Learn one module. You’ve learned them all.
Inputs on the left. Results on the right. Change a value, watch it recalculate instantly.
The same pattern across 64 modules. We decided early that consistency mattered. Every new module intentionally follows the workflow and design of the first one.
“I am almost moved to tears.” – Troy Bishop, after spending a year evaluating other software before trying ENERCALC.
The code updates problem (solved)
Researching, developing, testing, and documenting our changes for IBC 2024 took us nine months. Our users spent zero hours making those changes.
Every time the building code changes, we handle it. You open ENERCALC and the current code is there.
Support from engineers who’ve done the work
Our support team is staffed by structural engineers with 10 to 25 years of design experience. They used ENERCALC at their firms before they joined ours. When you have a question, you’re talking to someone who has designed the same thing you’re designing.
Hablamos espanol. Our bilingual team is happy to assist you in Spanish.
No-excuses 30-day money back guarantee
We want you to be happy with your software, even if that means going somewhere else.
Avg monthly use (2025)
Engineers
We’re helping thousands of engineers
get home for dinner every month.
832,812 user-days in 2025
Get your personalized free 30 day trial
Do real work. Submit projects. Make it earn its way into your toolbox.
What has to be true…
…about an engineer that they would use a product for 40 years?
… about the company for someone to be their customer for 40 years?
… about a company’s products and customer service that would cause a customer to stick around for 40 years?
… about the user experience for a user to stick around for 40 years while the technology changes from Visicalc, Lotus 1-2-3, DOS, Windows, cloud, etc?
Rick is not alone.
We meet engineers at every convention who come to our booth and say “I’ve been using ENERCALC for 40 / 30 / 25 years…“
What has to be true about a company and its software for that to happen?