Definition & Meaning of "window panel"

What is a "window panel"?

A window panel is the flat or raised section within a window frame that holds the glass in place. It can be made of various materials like wood, metal, or vinyl, depending on the window’s design and purpose. The panel is responsible for securing the glass, allowing light to enter while also providing insulation and protection from the elements. Window panels come in different styles, including single or multiple sections, and are an important part of both the function and appearance of a window.