BeamBuddy Calculators
Three tools, one workflow. Pick the one that fits the job — from a 30-second check in your browser to full Eurocode 3 design inside Excel.
Not sure which to use?
- Just need a quick check → Free online calculator
- Want to see how the add-in feels → Interactive Excel demo
- Doing real project work → BeamBuddy Excel add-in
Free Online Beam Calculator
Quick beam checks in your browser
Single-span sanity checks, coursework, or anyone who needs reactions and diagrams in under a minute — no install, no account.
Includes
- ✓Simply supported, cantilever and overhanging beams
- ✓Point loads and uniformly distributed loads
- ✓Reactions, shear force & bending moment diagrams
- ✓Works on any device — no Excel needed
Not in this tool
- —Continuous beams / multiple spans
- —Steel section design checks
- —Saving or linking results to a spreadsheet
Free, forever
Open the calculator →Interactive Excel Demo
The BeamBuddy add-in, running in a mock spreadsheet
Seeing exactly how BeamBuddy behaves inside Excel — link cells, change inputs, and watch results recalculate live — without installing anything.
Includes
- ✓A simulated Excel grid running the real add-in UI
- ✓Bidirectional cell linking demo
- ✓Live recalculation as you change inputs
- ✓No signup, no Excel install required
Not in this tool
- —Saving work to a real spreadsheet
- —Production use on real projects
Free preview
Launch the demo →BeamBuddy Excel Add-in
Production beam analysis inside the spreadsheet you already use
Real project work — continuous beams, Eurocode 3 design, and results that live alongside the rest of your calculation sheet.
Includes
- ✓Continuous beams up to 10 spans
- ✓Point, UDL, trapezoidal & partial loads
- ✓397 sections from the Blue Book (BS EN 10365)
- ✓Full Eurocode 3 design checks
- ✓Bidirectional Excel cell linking
- ✓Save & reload beam projects in the workbook
Free tier + Pro from £9.99/mo
Get the add-in →At-a-glance comparison
What each tool can — and can't — do.
| Online Calculator | Excel Demo | Excel Add-in | |
|---|---|---|---|
| Runs in | Web browser | Web browser (mock Excel) | Microsoft Excel |
| Signup | Not required | Not required | Required (free tier available) |
| Multi-span / continuous beams | — | — | Up to 10 spans |
| Eurocode 3 section design | — | — | Yes |
| Save & reload projects | — | — | Yes (in the workbook) |
| Links results to spreadsheet cells | — | Demo only | Yes (bidirectional) |
| Best for | Quick checks | Evaluating the add-in | Production work |
Still deciding? Start free.
The online calculator and Excel demo are both free and take seconds to try. You can always upgrade to the full add-in later.