We spent two decades running these numbers in a spreadsheet — so we know exactly where Excel helps and where it lets you down. WindLoadCalc keeps everything you loved about that workflow, deletes #REF! forever, and adds what a spreadsheet never could: a permit‑ready ASCE 7‑22 Engineering Report, one‑click exports (yes — including Excel), and access from any device you own.
Excel got you surprisingly far — that's exactly why we started there. But every wind‑load spreadsheet eventually breaks in the same predictable ways. We rebuilt the good half and engineered out the bad half.
The muscle memory an engineer never wants to give up.
Every one of these has burned an engineer at 4 p.m. on a deadline.
Same job, same ASCE 7‑22 math you'd build yourself. The difference is everything that happens after the number.
Run the components-and-cladding loads for the windows, doors and storm shutters. Now open MWFRS — the building's already filled in. Open the roof C&C — done. Same wind speed, exposure and enclosure, carried across every calculator automatically. Then just print or export: Excel, CSV, PDF, HTML.
In a spreadsheet, every one of those is a separate file you rebuild from scratch — and then keep in sync by hand.
A file sits still. A platform keeps working for you — across projects, calculators, jurisdictions and teammates.
Save as many projects as you need — every one in a single place, not a graveyard of .xlsx files scattered across three computers. As we add calculators, they all live here too.
Type the ZIP — the design wind speed appears instantly, for every risk category. Need to double-check? The official ASCE 7 hazard reference is one click away, right where you're working.
Where a building department's requirements supersede the base standard — Florida's HVHZ provisions, local amendments — those overrides are already handled. What you hand plan review reflects the rules that actually govern the job.
Export the exact same result as an Engineering report or an Architectural schedule that drops into the plan set — PDF, HTML, CSV or Excel. Both deliverables from one calculation is something only WindLoadCalc gives you.
Add a teammate or a subcontractor by email — or remove them — right from your Account access panel. Your company and your subs work the same live projects, seamlessly. Nothing gets emailed around.
Prefer a copy in a work folder on your own machine? Export to any format and it's yours — Excel, CSV, PDF or HTML. Cloud when you want it, a local file when you need one. You're never locked in either direction.
One calculation, every format your project touches. Hand the PDF to the building department, drop the CSV into CAD, email the HTML to a reviewer with a raw link — and when someone insists on a spreadsheet, hand them the Excel export. Same numbers, no rebuild.
| Mark | Component | Zone | Area | +psf | −psf |
|---|---|---|---|---|---|
| W‑01 | Window | 4 | 18 sf | +38.6 | −41.9 |
| W‑02 | Window | 5 | 18 sf | +38.6 | −51.7 |
| D‑01 | Door | 4 | 21 sf | +37.9 | −40.8 |
| R‑01 | Roof | 3 | 10 sf | +— | −63.2 |
Architects and engineers don't want a printout to retype — they want a schedule block that drops onto the sheet. So we formatted the export the way it actually gets used: mark, component, zone, effective area, and design pressures, ready for the plan set.
An Excel file lives in exactly one place — and the day you need it, you're somewhere else. WindLoadCalc lives in your account, so the office desktop, the laptop, and the tablet on the job site all open the same current project.
"The latest file is on the other computer." Email it to yourself, buy a second license, hope the versions match.
Log in anywhere. One subscription, every device, always the current project — nothing to install, nothing to sync.
A spreadsheet only ever does what someone once typed into it. For nearly 25 years our calculator has grown the opposite way: every edition of ASCE, every export format, every workflow an engineer asked for. If your project needs something ours doesn't do yet, that's a feature request — not a dead end.
You won't find 7‑16 or older here, on purpose. Building codes across the country are rolling over to ASCE 7‑22 — so we build the current standard and add the next edition as it becomes relevant, instead of keeping decade‑old math on life support. Even where your jurisdiction still cites an older edition, good engineering thinks about the people under the roof: a wind standard more than ten years out of date isn't doing anyone any favors. Stay current, and your work never ages out from under you.
No. WindLoadCalc is browser-based ASCE 7-22 software, not a spreadsheet. It gives you what people wanted from an Excel wind load calculator without the broken formulas.
And it exports to Excel — plus PDF, HTML and CSV — whenever you want a spreadsheet copy.
Yes. Excel (.xlsx) is one of several one-click exports, alongside PDF, HTML, CSV, and a plan-ready schedule format.
The calculation lives in the software, so Excel is simply an output you can generate any time — not the fragile place your engineering lives.
On purpose. Building codes are rolling over to ASCE 7-22, so we build the current standard and add new editions as they become relevant instead of maintaining decade-old math.
Even where a jurisdiction still cites an older edition, designing to a wind standard more than ten years out of date does not serve the people under the roof.
Yes. Add or remove a teammate or subcontractor by email in your Account access panel.
Your company and its subs work the same live projects — nothing gets emailed around.
No. A saved project carries across calculators — run components and cladding for the windows, doors and shutters, then open MWFRS or the roof C&C and the building is already filled in.
Then just print or export.
No — what you export is an Engineering Report, never a sealed or stamped document. Sign-and-seal by a professional engineer is a separate service, available in all 50 states through the firm's engineer network, that you add only when a project specifically calls for a stamp.
Run a real ASCE 7‑22 calculation free — no install, no file to break. Then keep the Excel export if you want it. You just won't need to.