Design drawing of door and window head

Quick answer：

Design drawings for door and window heads are technical illustrations that depict the architectural or decorative features of the upper part of doors and windows. These drawings are essential in the construction industry for planning and executing the installation of doors and windows in buildings. They typically include dimensions, materials, and design elements such as molding profiles, cornices, and door knockers. Architects and builders use these drawings to ensure consistency and functionality in the building's facade.