Rough-In Plumbing

Rough-in plumbing is the stage of a plumbing installation where the pipes, drains, and vent lines are run inside walls, floors, and ceilings — before those surfaces are closed up and before fixtures like sinks and toilets are set.

It follows the layout on the plumbing drawings and precedes the finish, or "trim," stage. Rough-in covers the concealed system: supply lines, drain-waste-vent piping, and the connections that fixtures will later attach to.

Estimating the rough-in means reading the drawings to measure pipe by material and size, count fittings and valves, and price the labor to install it all. Pulling those quantities directly from the plans as part of a takeoff is exactly the plumbing workflow Quotr is built to speed up.

For plumbing subcontractors, the rough-in is where most of the labor and material cost lives, so its takeoff drives the bid. For general contractors, rough-in inspection is a schedule milestone that has to pass before walls can close.