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A wall opening with glazing lines and no arc.
Also known as: Fixed light plan symbol, Non-opening window symbol
On an architectural plan a fixed window is drawn as glazing lines across a wall opening with no arc, marking a light that does not open.
Is identified by the absence of an arc, which makes it one of the few plan symbols whose meaning rests on something not being drawn.
Contexts: Technical drawing
A thin opening in the wall crossed by two or three parallel lines, with no arc drawn at either jamb.