Common Terms and Styles

Common Terms

NAIL FIN: Common to most new construction windows. Used to fasten through to attach the window to the rough framing.

FRAME: The fixed frame of a window that holds the sashes or fixed glass.

HEAD: The horizontal top member of a window frame.

JAMBS: The vertical side members of a window frame.

SILL: The horizontal lower member of a window frame.

SASH: The moveable framework in which glass is set and which operates in the overall frame of the window.

STILES: The vertical members in a window sash.

RAILS: The horizontal members of a window sash.

Window Styles

Equal Lite SH/DH: One or more vertically operating sashes. On a single-hung, the bottom sash operates. On a double-hung, both the bottom and top sash operate

Oriel SH/DH: One or more vertically operating sashes, 60/40 split. Bottom sash smaller than top sash

Reverse Oriel SH/DH: Two vertically operating sashes, 40/60 split. Top sash is smaller than the bottom sash

Picture: Fixed, inoperable unit 

Casement: Hinged at the jamb, the sash swings outward when the handle is turned

Awning: Sash is hinged at the head and swings outward when the handle is turned.

Hopper: Sash is hinged at the sill and swings outward handle is turned.

2-Lite Slider: Both sashes slide open horizontally

Casement Picture: An inoperable casement window

• Casement and Casement Picture Windows may be mulled or joined together in a mainframe window wall.
• See bottom row for possible configurations

Colonial Casement: A casement window design to emulate the look of a hung window when closed

Transom: A fixed window that often is mulled or placed separately above a different style

Patio Door Styles