Window Frame Load Calculator
Calculate wind load on a window frame and the required frame strength based on wind pressure, area, and drag coefficient.
How to Use the Window Frame Load Calculator
- Enter the design wind pressure in Pascals.
- Enter the window area in m².
- Enter the drag coefficient (default 1.2).
- Click Calculate to get wind load and required frame strength.
Use Cases
- •Window frame structural check.
- •Hurricane zone window design.
- •Building envelope design.
- •Façade engineering.
Formula
F = q × A × Cd, where q is wind pressure (Pa), A is window area (m²), Cd is drag coefficient (default 1.2).
Frequently Asked Questions
What is wind pressure?
Wind pressure is the dynamic pressure exerted by wind on a surface. Typical values: 500–1500 Pa for residential.
What drag coefficient should I use?
Use 1.2 for flat surfaces (windows). The default value is suitable for most residential windows.
What is required frame strength?
It is the estimated force per metre of perimeter that the frame must resist.