A wind load calculation determines the design pressures (in psf) that windows and doors must withstand based on your building's location, height, surrounding terrain, and the position of each opening.
Florida Building Code Section 1609 requires that all fenestration be designed to resist wind loads calculated per ASCE 7-22. Most building departments ask for these calculations during permitting; requirements and document acceptance vary by jurisdiction.
Each report costs $9.99 as a one-time purchase. This includes one project with unlimited openings, a print-ready calculation sheet, and product information tracking.
This calculator is designed for qualifying buildings with mean roof heights of 60 feet or less, where simplified wind-pressure methods are available under the Florida Building Code. Sealing requirements vary by project and jurisdiction — confirm with the applicable building department. Buildings over 60 feet generally require PE-sealed calculations.
Zone 4 covers interior wall areas with lower pressures. Zone 5 covers corner zones where wind accelerates, requiring products with higher design pressure ratings.
The design wind speed depends on your location in Florida per ASCE 7-22 maps. Speeds range from about 130 mph in North Florida to over 180 mph in South Florida.
The High Velocity Hurricane Zone includes Miami-Dade and Broward counties with the most stringent wind requirements. Products must have Miami-Dade NOA approvals.
Positive pressure (+psf) pushes inward on the windward side. Negative pressure (-psf) is suction that pulls outward. Products must resist both directions.
Yes, for both residential and commercial buildings up to 60 feet mean roof height.
Yes, the report is formatted specifically for printing and county inspector review with zone diagrams, opening schedules, and compliance notes.
Professional, print-ready wind load calculation reports for Florida building permits. $9.99 per project.
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