Contemporary architecture attempts to maximize daylight, minimize ornamentation, and connect interiors to the outdoors (biophilia). Fenestration plays a great role in achieving this aesthetic. This course will discuss how to fill very large openings with mulled windows, punched-opening window walls, moving walls with large doors, and timber curtain walls. The course will identify window and door styles, design options, and performance measures that must be considered when specifying oversized openings for both residential and commercial projects.