A window with an upper and lower sash that slide vertically in the side jambs is known as what?

A window with an upper and lower sash that slide vertically in the side jambs is known as what?

• A. Double-hung
• B. Casement
• C. Picture window
• D. Bay window

Answer: (A)

Two sashes that move up and down within the same window frame define a double-hung window. This arrangement lets you ventilate from the top or bottom by opening the corresponding sash, and many models let both sashes tilt in for easier cleaning. A casement window hinges on the side and swings open like a door, not slide; a picture window is a fixed pane with no movable sash; a bay window projects outward as a group of panes. So the described setup is a double-hung window.

Two sashes that move up and down within the same window frame define a double-hung window. This arrangement lets you ventilate from the top or bottom by opening the corresponding sash, and many models let both sashes tilt in for easier cleaning. A casement window hinges on the side and swings open like a door, not slide; a picture window is a fixed pane with no movable sash; a bay window projects outward as a group of panes. So the described setup is a double-hung window.