Wind load questions, answered

Most projects take 2 to 15 minutes. You enter the location, building geometry, and component type, and the calculator handles the ASCE 7-22 lookups and pressure math. Most users finish their first real project on day one.

No. The step-by-step workflow guides engineers, architects, designers, and contractors through each input with plain-language prompts and built-in ASCE 7-22 references. The math runs in the background.

Both. MWFRS sizes the overall frame, shear walls, and bracing. C&C sizes individual elements like windows, doors, and roofing. C&C pressures are usually higher because edges and corners concentrate load, so most projects need both.

Enter a U.S. ZIP or address and the design wind speed is returned automatically. Values trace to the ASCE 7-22 maps, with Florida HVHZ and county overrides applied where they govern. You can also enter a speed manually. Try the free lookup →

ASCE 7-22, the current standard most U.S. building departments require. We have navigated 7 editions since 7-95, so prior-edition logic is well understood. When a new edition publishes, the calculator is updated at no extra charge.

Florida Building Code overrides are built in. For Miami-Dade, Broward, and Collier, the tool applies the governing High-Velocity Hurricane Zone wind speeds and the 4-foot edge-strip minimum instead of the plain ASCE value.

ASCE 7 maps give Ultimate (strength-level) wind speeds. Nominal is the service-level value, found by multiplying Ultimate by the square root of 0.6. Confirm which your jurisdiction accepts; the calculator toggles between both.

Yes. Each value cites its ASCE 7-22 section, so there is no black-box math. GCp values use logarithmic interpolation rather than rounded table picks, and the report shows the path from wind speed to final pressure.

Subscriptions are priced per category, billed monthly, with unlimited calculations. A 7-day free trial gives full access with no credit card. You can run real projects and export reports during the trial. See plans & pricing →

Yes. The free wind speed lookup covers every U.S. ZIP, applies Florida HVHZ overrides, and returns a single-component pressure with no signup. Paid subscriptions add the full calculators, product tracking, and exports.

Yes — two ways. First, the free wind load calculator runs instantly in your browser with no signup: enter a ZIP and get the ASCE 7-22 design wind speed (with Florida HVHZ overrides) plus a single-component design pressure. When you are ready for full projects, the 7-day free trial unlocks the complete calculators, multi-opening schedules, and Engineering Report exports — full access, no credit card. Try before you buy, then subscribe only if it fits your workflow.

Yes. Each category is its own subscription, so you can take only what your projects need and add categories later. Windows, Doors and Storm Shutters is live today; Roofs, Solar, and MWFRS are coming.

Export an Engineering Report to PDF, Excel, or CSV, or print from any local printer. The Excel export drops cleanly into AutoCAD and downstream workflows. Exports are unlimited with no per-report fee.

Our Engineering Reports carry a 100% permit-approval record across 24 years. Officials recognize the format and full ASCE 7-22 documentation, which keeps reviews moving and avoids rejections.

Match them against manufacturer ratings to pick compliant windows, doors, shutters, and skylights, and to size straps, anchors, and materials. The report states the limit each element must resist.

No. The software produces an Engineering Report, not a sealed document. A PE sign-and-seal is a separate service: our in-house Florida P.E. handles FL projects, and our PE network can sign and seal in all 50 states on request.

Yes, as a separate service. Generate your Engineering Report, then request a seal. Florida projects route to our in-house P.E.; other states go through our nationwide PE network. Email sales@windloadcalc.com.

Start the 7-day trial from any pricing page with no credit card. Projects are stored with strong encryption and sync across desktop, tablet, and phone. We do not share your data, and you can cancel anytime.

Email support@windloadcalc.com for technical help or sales@windloadcalc.com for plans, with a 24-hour response from licensed structural engineers. Call (833) 272-3946. Phone support with a P.E. is included on premium plans.