Anatomy of a window 

Understanding these components can help you in selecting, maintaining, or replacing windows in your home. 

The anatomy of a window refers to the various parts and components that make up a window structure. While exact features can vary based on style (e.g., single-hung, double-hung, casement), here are the most common elements: 

🔧 Basic Window Anatomy Terms

1. Frame: The outer structure that supports the entire window; includes the head, jambs, and sill.
2. Sash: The movable or fixed part  that holds the glass panes.
3. Glass (Pane): The transparent part of the window, often double- or triple-glazed for insulation.
4. Grilles / Muntins: Decorative or functional strips that divide the glass into panes. These may be part of the sash or inserted between panes.
5. Glazing: The process or material used to secure the glass into the sash.
6. Stile and Rail: Components of the sash.

🏠 Optional or Specialized Parts

1. Apron: The trim piece located directly below the sill on the inside.
2. Casing (Trim): The decorative molding that covers the gap between the frame and the wall.
3. Hardware: Includes locks, handles, and cranks (especially in casement or awning windows).
4. Weatherstripping: Material that creates a seal to reduce air and water infiltration.
5. Screen: A mesh installed over the window to allow ventilation while keeping insects out.
6. Balance: A hidden mechanism in double-hung windows that helps support the weight of the sash and allows it to move smoothly.

Knowing the parts of a window helps you make smarter choices for repairs, replacements, and upgrades. With the right knowledge, you can boost efficiency, style, and value in your home. You can browse one of our trusted brands here.