What is a window joist?

A window joist is a structural component found in a building's framing, typically used to support the area around a window opening. It helps distribute the load of the building above the window, ensuring stability and preventing sagging or structural failure. Window joists are often part of a larger framing system, including headers and sills, that collectively support the window and surrounding walls. Proper installation is crucial for maintaining the integrity of the window structure and overall building.