What component is used to separate a window into multiple sections?

The correct choice is muntins, which are the components used to divide a window into smaller sections or panes. Muntins are typically horizontal or vertical bars that create these divisions within the window frame. They play an essential role in both the aesthetic and structural design of windows, allowing for a traditional look and providing support to the glass sections.

Understanding the role of muntins is important, especially in architectural design and restoration projects, where maintaining period-appropriate features is often critical. They can also impact how light is filtered into a space and how views are framed.

In contrast, an astragal is used to create a seal between two meeting doors or panels, while a sill refers to the bottom part of a window frame that supports the window and prevents water from entering the building. Stiles are the vertical components of a door. Each of these components serves distinct functions within window and door construction, highlighting the importance of recognizing various elements in building design.