ASCE 7-22 Door/Window Wind Pressure Calculator
How to Use This Calculator
This tool estimates wind pressures on doors and windows (components and cladding) for low-rise enclosed buildings based on ASCE 7-22. Follow these steps:
- Wind Speed: Enter the ultimate wind speed (V) in mph from ASCE 7-22 maps for your risk category and location.
- Building Dimensions: Input the length, width, and mean roof height (h) in feet (assumes low-rise, h ≤ 60 ft).
- Exposure Category: Choose B (urban/suburban), C (open terrain), or D (coastal/flat) based on surrounding terrain.
- Topographic Factor (Kzt): Enter Kzt (default 1.0 for flat sites; use ASCE Fig. 26.8-1 if hill/ridge/escarpment).
- Effective Wind Area: Enter the area (A) of the door or window in sq ft (affects GCp for negative pressures).
- Click “Calculate” to see results, including pressures and loads for Zones 4 (interior) and 5 (corners).
Understanding Zones: Zone 5 is the end zone within ‘a’ feet from corners/edges (calculated per ASCE 30.3). Zone 4 is the interior wall area. Assumes enclosed building (GCpi = ±0.18).
Note: For h > 60 ft or non-low-rise, use full ASCE methods. Positive pressures are inward; negative are outward (suction).
Results
Zone End Width ‘a’: ft
Velocity Pressure (qh): psf
Exposure Coefficient (Kz):
| Parameter | Zone 4 (Interior) | Zone 5 (Corners) |
|---|---|---|
| Positive Pressure (psf, inward) | ||
| Negative Pressure (psf, outward) | ||
| Positive Load (lbf) | ||
| Negative Load (lbf) |
Disclaimer: This tool provides estimates based on ASCE 7-22 for enclosed low-rise buildings. Assumes Ke=1.0 (sea level), no directionality adjustment (baked into V maps). For precise designs, complex topography, or non-enclosed structures, consult a licensed professional engineer. Oasis Engineering assumes no liability for use of this tool.
Note: This calculator provides simplified estimates based on approximate values from the ASCE 7-22 standard. It is intended for educational purposes only. For precise calculations and critical applications, consult a licensed structural engineer and refer to the full ASCE 7-22 standard. Oasis Engineering assumes no liability for errors or decisions made based on these estimates.
