Anatomy of a Double-HungThe most popular window in the U.S., it has the same basic parts as other types.
Movable or fixed frame that supports the glazing.
Trim that covers the gap between the jambs and house framing.
Bottom part of the frame; angled to shed water.
Sides and top of the frame that surround the sashes.
Slender strips that divide the glazing.
Hardware that secures the top and bottom sashes.
This Old House To Go