Construction teams use stage language to describe where plumbing work fits in the build. The exact scope varies by plan, inspection sequence and project responsibilities; the project documents always come first.
Rough-in generally refers to the in-wall or below-surface piping installed before walls and finishes close. At this point, layout, penetrations, fixture locations and coordination with other trades matter.
Top-out is commonly used for the next construction stage after rough work, when the above-ceiling or upper-level connections and related piping are coordinated before finishes and fixtures are completed. Teams may use the term differently, so define it against the plans and schedule.
For a bid request, share the project city, type, stage, requested scope, plan or ITB link when available and expected timeframe. Those details go further than a stage label alone.
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