Frame: The are
three components to a frame: sill, header, and jamb. They hold the
operating and/or stationary sash.
Sill: The frame member that runs horizontally across the
bottom of the frame outside.
Header: The frame member that runs horizontally across
the top of the frame.
Jamb: The part of the frame that runs vertically between
the header and sill.
Sash: This is what you probably think of as the
"window." It's the main section, whether operating (i.e., able to open)
or stationary, that's installed into a frame. It's made of horizontal
rails and vertical stiles.
Stop: The vertical piece that holds the lower sash in
the frame on the inside.
Parting Bead: The thin vertial component that seperates
the upper and loser sash.
Lite: A single area of glass or window pane.
Bar: The vertical or horizontal piece that divides the
glass area into lites or panes.
Muntins: The bars that divide the glass area into lites
Hardware: The operating components of your window or
door: locks, handles, hinges, etc.
Typical Single or Double Hung
Wood Window construction.