Head

Also called head jamb

The horizontal top member of the window frame.

The head is the top piece of the window frame. Together with the two side jambs and the sill it forms the frame that the sashes sit in.

On a double-hung window the upper sash closes against the head.

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Awning window, from inside

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Casement window, from inside

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Double-hung window, from inside

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Two double-hung windows in one opening

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Double-hung window, in section

Related

JambThe vertical side members of the window frame.
SillThe bottom member of the window frame, sloped outward to shed water.
CasingThe molding that frames the window on the interior wall.
Drip capThe sloped cap over the top of the window casing that sheds water away from the wall.