Topic summary
Jambs
Extracted from the Wikipedia article Jamb.
In architecture, a jamb (from French jambe 'leg'), is the side-post or lining of a doorway or other aperture. The jambs of a window outside the frame are called reveals. Small shafts to doors and windows with caps and bases are called jamb-shafts; when in the inside arris of the jamb of a window, they are sometimes called scoinsons.