Last edited 02 Apr 2021

Window frame

Casement window pixabay 640.jpg


[edit] Introduction

Windows are openings fitted with glass to admit light and allow people to see out. They are often openable to allow ventilation and escape.

Windows are made up of a number of different components, including a window frame. The window frame is the enclosure that surrounds and supports the entire window system and its various components.

For more information see: Window parts.

Window frames are made from many different types of materials, including timber, aluminum, pvc, steel, aluminium and so on. These materials provide different aesthetic, structural, maintenance and efficiency characteristics.

[edit] Three parts of a window frame

Generally, a window frame is a combination of three parts:

Together, these components form an outer border that creates a suitable opening for the window to be installed.

[edit] Casement window frames

Casement window frames may include other components, including:

[edit] Box sash window frames

Box sash window frames may include additional components, including:

  • Architrave, which is the horizontal or vertical moulding that forms the surround to a window frame, typically internally within the room.
  • Inside lining, which is the inside face of both the sides and head of the window box frame.
  • Outside lining, which is the external face of the window frame or box.

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