Free tool · ASCE 7-22
What rating does it need?
Design pressures for a window, door or roof area in seconds. Email yourself the report.
Product rating to look for
±—psf
Design pressure (ASD) on the NOA or Florida Product Approval, worst zone.
When your county needs it sealed
The permit wants a signed package.
Fixed-price residential packages from $249; custom and commercial work is quoted, typically $1,000–$2,100.
Get the sealed wind calc- What does this calculator give me?
- Design wind pressures (positive and negative) for a wall opening or a roof area by zone, using simplified ASCE 7-22 components and cladding equations, and the product design-pressure rating (ASD) to look for on a Florida Product Approval or Miami-Dade NOA.
- Can I submit this for a permit?
- No. It is a free estimate for planning and product selection. Building departments that ask for wind load calculations want a site-specific package sealed by a licensed engineer.
- Why is a corner window rated higher?
- Wind accelerates around building corners, so ASCE 7 assigns higher suction to zone 5 (within about 3 to 6 feet of a corner on most homes) than to zone 4 (the rest of the wall).
About this estimate. Free, automatic and simplified: ASCE 7-22 components and cladding (Chapter 30, Part 1, buildings up to 60 ft), Kzt = 1, sea-level Ke, Kd = 0.85, internal pressure for an enclosed or partially enclosed building, the 16 psf minimum, and product ratings shown as ASD (0.6 × strength). Wind speeds come from the ASCE 7-22 hazard maps for the ZIP centroid; your address may differ. Nobody has reviewed your project, and nothing here is signed or sealed. It is not a permit document and does not create an engineer-client relationship. Terms of use.
Need wind calculations for your permit?
Send the project details in about two minutes. A licensed engineer reviews them and tells you what happens next.
Request wind calculations