What kind of installation is described as being completed prior to the installation of fixtures?

The installation described as being completed prior to the installation of fixtures is known as roughing-in. During the roughing-in phase of plumbing, the necessary pipes and connections are installed within walls or underneath floors, but the fixtures themselves, such as sinks, toilets, and bathtubs, have not yet been positioned. This stage is crucial because it establishes the infrastructure required for the plumbing system to function properly. It also involves ensuring that all the necessary lines for water supply and drainage are correctly laid out and secured.

Other terms, such as final installation and finish work, refer to different stages in the plumbing process, where fixtures are installed, and aesthetic elements are completed, respectively. Demolition relates to removing existing plumbing infrastructure rather than installing new systems. Understanding this distinction is vital for any plumbing professional, as it highlights the sequential nature of plumbing installation practices.