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Related to Fixed sash: window sash
A fixed window frame that does not open.
Illustrated Dictionary of Architecture Copyright © 2012, 2002, 1998 by The McGraw-Hill Companies, Inc. All rights reserved
fixed light, deadlight, fast sheet, stand sheet, fixed sash
A window or an area of a window which does not open; glazed directly in a fixed frame that does not open.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.