Rough-In Plumbing for Your

Bathroom & Kitchen

If you are remodeling your kitchen or bathroom, you’ll need a licensed plumber to provide rough-in plumbing.

“Rough-in” is a term used to describe the installation of plumbing pipes and fixtures in a building before the walls and floors are finished.

Some common plumbing rough-in tasks include:

• Running water supply lines to each fixture location.
• Running drain lines from each fixture location to the main sewer or septic system.
• Installing vent pipes to ensure proper airflow in the plumbing system.
• Installing the main water shut-off valve and other valves as necessary.
• Installing the main sewer or septic cleanout access point.

Rough-in plumbing is performed in the early stages of construction. Once the rough-in plumbing is completed, the walls and floors can be finished around the pipes. After the walls and floors are finished, the plumbing fixtures can be installed.

Kitchen Plumbing Rough-In

A kitchen typically has different plumbing fixtures that require different rough in plumbing work. A kitchen typically has a sink with a garbage disposal, a dishwasher, and sometimes a refrigerator with an ice maker.

The rough-in plumbing for a kitchen will involve running water supply lines and drain lines to these fixtures. Additionally, the kitchen sink drain will usually require a trap and a vent, just like a bathroom sink, but the trap must be configured to accommodate the garbage disposal.