The size of the header needed for a window can vary depending on a few factors such as the size and weight of the window, the design of the building, and local building codes. In general, the header size for a window is determined by the width of the opening and the load that it will bear.
WHAT IS A WINDOW HEADER
In construction, a window or door header is a structural element that is used to support the weight of a window or door and transfer it to the surrounding wall or framing members.
