Floorthroughs are the channels or openings in the floors of buildings that allow for the passage of utilities like electrical and plumbing lines, heating and cooling ducts, and cables. There are several synonyms for the term floorthroughs, including floor penetrations, floor openings, floor vents, floor ducts, and access holes. These terms are often used interchangeably and their meaning depends on the context in which they are used. Regardless of the term used, it is important for builders and contractors to properly seal and insulate floorthroughs to prevent air and water leakage and ensure that the buildings are as energy-efficient as possible.