Fixed window
A window that doesn't open. It is drawn as a plain break in the wall, with no swing or sliding sash.
This explains what a symbol represents on a drawing. Conventions vary between firms and standards, and a drawing's own legend takes precedence.
How to read it
The Navy's Builder 3 & 2 course calls these stationary windows: a sash with a large single pane, fastened permanently into the frame, and often set beside windows that do open. With nothing to move, the symbol shows no motion. Under the A/E/C Graphics Standard each window also carries a mark inside a diamond, and the same mark appears in the window schedule, which lists the exact unit.
Also searched as: picture window.
Look-alikes
The sliding window and double-hung window are also drawn without a swing. The window mark and schedule tell them apart when the linework doesn't.
More blueprint symbols
Sources
- Builder 3 & 2, Volume 2, NAVEDTRA 14044, Naval Education and Training Command, U.S. Navy, ch. 4, windows
- A/E/C Graphics Standard, Release 2.2, ERDC/ITL SR-23-1, U.S. Army Engineer Research and Development Center, CAD/BIM Technology Center, sec. 3.3.5
Last reviewed September 24, 2026 by Rory Hansen. How we research