Which part of the window sash is located on the sides?

The stiles are the vertical components found on the sides of a window sash. They extend from the top rail to the bottom rail and serve as the framework for the window. The stiles provide structural support and are essential for holding the glass panes and other components of the sash together. They play a crucial role in the overall stability and functionality of the window.

In contrast, the top rail is the horizontal piece at the top of the sash, while the bottom rail is located at the bottom. Meeting rails are the horizontal elements where two windows or sashes meet when closed. Understanding these components is important for proper window installation, repair, and maintenance.