Window Terms Glossary

Jamb.   A vertical member at the side of a window or door frame.

Jamb depth: Width of the window frame from inside to outside.

Jamb liner: The plastic or metal track installed in the jambs of a double hung window in which the window sash slide.

Jalousie windows: A window composed of overlapping narrow glass, metal or wood louvers, operated by a  crank handler  for adjusting the louver angles