Linked, cloud-based calcs built for Australian engineers.
Calcs.com runs in any browser and links loads through the full structure automatically, with AS, NZ, US, and Eurocode standards in the same platform. See how Calcs.com compares to Structural Toolkit.
No credit card required · Trusted by 3,500+ structural engineers
Why engineers switch from Structural Toolkit
Load linking built into the core workflow
Reactions propagate automatically through beams, columns, and footings. The full load path is visible and inspectable, not stitched together by hand across separate spreadsheets.
Cloud workspace, any browser
Open Calcs.com on any computer, anywhere. No Windows-only install, no license-monitor program, no local file shuffling between machines.
AS plus NZ, US, and Eurocode
Design to AS 1170, AS 1720, AS 3600, AS 4100, and AS 3700 alongside NZS, IBC, and Eurocode standards in the same project.
Shared team workspace
Project defaults set once, applied across every calculation. Multiple engineers work concurrently in the same project from any browser.
How Calcs.com compares to Structural Toolkit
| Feature | Calcs.com | Structural Toolkit |
|---|---|---|
| Automatic load linking across members | ||
| Cloud-based, works in any browser | ||
| Australian Standards (AS 1170, AS 1720, AS 3600, AS 4100, AS 3700) | ||
| Multi-region coverage (NZ, US, Eurocode alongside AS) | AU only | |
| Inline formula and code clause references | Limited | |
| Structural member design (beams, columns, footings, walls) | ||
| Export calculation reports for submittal | ||
| Shared team workspace with project defaults | ||
| Concurrent team access (multiple engineers, one project) | 3 concurrent seats per license | Per-seat license |
| Standards-aligned audit trail | ||
| Manufacturer member databases | Limited |
Seen enough? Try Calcs.com on a real project.
14-day free trial. No credit card required.
Load linking through the full structure
Structural Toolkit handles individual members well, with a spreadsheet for each. What it does not do is connect them: when a roof load changes, you open the beam sheet, update it, then the column, then the footing. In Calcs.com, every member sits on the same load path by default. Reactions propagate through the connected beams, columns, and footings automatically, with the propagation visible at every step. Engineers trace any value back to its source, which makes reviews faster and the result easier to defend.
Just the simple feature of being able to link loads is a really big time-saver.
AS at the core, with NZ, US, and Eurocode in the same platform
Structural Toolkit is built around Australian Standards and works only inside that scope. Calcs.com covers AS 1170, AS 1720, AS 3600, AS 4100, and AS 3700 alongside NZS 3404, NZS 3603, IBC, ASCE 7, AISC 360, NDS, and Eurocode 2 and 3. Firms working across the Tasman or designing for clients in multiple regions stay in one platform instead of maintaining a second tool at the border.
Ready to run a real project in Calcs.com?
Try it alongside Structural Toolkit - free for 14 days, no credit card required.
Built for teams, not single-machine installs
Structural Toolkit is a Windows desktop application with a per-seat cloud license tied to the user. Calcs.com is built for how engineering firms actually work: project defaults set once and inherited across the team, shared workspaces where principals review junior engineers' work directly, and multiple engineers working concurrently in the same project from any browser. No license-monitor utility, no machine transfers, no waiting for a colleague to close the file.
How to switch from Structural Toolkit
Most engineers run Calcs.com alongside Structural Toolkit on a new project first. Full adoption typically happens within a few weeks.
Start your free trial
Sign up at app.calcs.com. No credit card required. Your first project is live in under five minutes from any browser.
~5 min
Set project defaults for your first job
Enter location, code edition, and load parameters once. Calcs.com applies them across every calculation in the project automatically.
~10 min
Run your first linked calculation chain
Design a beam, link a column to its reaction, then link a footing to the column. Change the roof load and watch the structure update.
~20 min
Export a calculation report
Generate a PDF calc pack ready for submittal. Invite a colleague to review it in the same workspace.
~5 min
No credit card required
What engineers say
Calcs.com is a structural engineer's best friend. It makes your life easier than any other software I'm familiar with, and easier means more money, easier means higher profitability.
Matt Ward
Principal Engineer, Ward Engineering
The software has made us a minimum of 30% more productive. It's eliminated at least 30% of the workload.
Donovan Rae
Senior Project Manager, Lumos & Associates
Also evaluating?
Frequently asked questions
Can I import my existing Structural Toolkit calculations?▾
Does Calcs.com cover the same Australian Standards as Structural Toolkit?▾
What does Calcs.com cost compared to Structural Toolkit?▾
Is Calcs.com available offline like Structural Toolkit?▾
Is Calcs.com the same as ClearCalcs?▾
Ready to switch from Structural Toolkit?
Start a free 14-day trial. No credit card required. See load linking, Reference Mode, and collaborative workflows in under 30 minutes.