Who must approve rough-in measurements for installed fixtures?

The approval of rough-in measurements for installed fixtures is typically the responsibility of the architect or engineer involved in the project. The architect or engineer designs the layout of the plumbing fixtures and systems, ensuring that they align with the overall design, functionality, and compliance with relevant codes and regulations. Their expertise is crucial in confirming that the rough-in measurements conform to the plan specifications and building standards. By approving these measurements, they ensure that the installation can proceed correctly, minimizing the risk of future complications or misalignments that could arise from errors during the rough-in phase.

While other parties such as the contractor and local authority may have roles in the approval and oversight process, it is specifically the architect or engineer who provides the directive based on the design documents. The plumbing inspector's role mainly comes into play during the inspection of the installed work rather than the initial rough-in measurements.