Sold under many names
Picture window
A fixed pane with no operable sash — glass sealed straight to the frame.
What it means for you
The most airtight style and the most glass for the money, since there's no hardware. The catch: zero ventilation, and it never counts for egress — so it's usually flanked by operable casements so the wall can still breathe and escape.
Where you'll see it
Living-room view walls and gable feature walls, often in a trio with two opening windows.
Also sold as: fixed window · fixed-pane window
Related terms
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