This Architectural Drawing is AutoCAD 2d drawing of Grates in window details. Window grilles are narrow strips of wood, vinyl, or metal used to visually separate the glass of a window into “panes” or lites. They are purely aesthetic — not necessary for the structure of the window. When the lines the grilles create are purely horizontal and/or vertical, they are sometimes referred to as grids. For more details and information download the drawing file.