Read Plumbing Plans and Fixture Locations

A. Finished-Package Specification

Deliverable set: one fixture register covering every plumbing fixture and equipment item in the received package; one routing summary distinguishing diagrammatic from coordinated supply, drain, waste, vent, and gas routes; one rough-in dimension log recording only documented centerlines, offsets, elevations, and clearances; one penetration and coordination list; and one fixture rough-in checklist organized by fixture, location, centerline, elevation, supply, drain, vent, support, backing, penetration, access, test, and inspection.

B. Deliverable Schedule (Component Schedule)

Component	Quantity	Source	Required Fields	Preparation / Purpose
Fixture register	1	Architectural and plumbing plans, schedules, approved submittals	Tag, room, type, model or basis of design, mounting condition, references	Confirms every fixture is identified and matched to its schedule entry
Routing summary	1	Risers, isometrics, plumbing plans, notes	System, segment, tag, size, material, slope, diagrammatic or coordinated status	Distinguishes connection logic from field-ready routing
Rough-in dimension log	1	Plumbing plans, details, manufacturer data	Fixture, centerline, offset, elevation, reference surface, source	Records only documented rough-in values
Penetration and coordination list	1	Plumbing, structural, architectural comparison	Location, type, structural member affected, required approval, status	Flags cross-trade conflicts before field use
Fixture rough-in checklist	1	All components above plus inspection requirements	Fixture, location, centerline, elevation, supply, drain, vent, support, backing, penetration, access, test, inspection	Final coordinated field-use deliverable

C. Source Material Takeoff

• Primary source: current plumbing plans, legends, abbreviations, schedules, risers, isometrics, details, specifications, and approved fixture information available for the project at the time this chapter begins.
• Supporting source: the Chapter 1 navigation package, the Chapter 4 room-by-room layout summary, current structural framing plans, and any approved fixture or water-heater submittals.
• Reference tools: straightedge, consistent markup colors, and the engineer's or architect's scale carried forward from Chapter 1 for planning-only verification.
• Recording medium: one document-control log or spreadsheet capable of holding all five deliverable components listed in Section B.

D. Acceptance Standards

Check	Standard
Fixture register completeness	Every fixture and equipment item shown on the architectural or plumbing plans appears in the register with a matched schedule entry, or is logged as unmatched
Routing status accuracy	Every routed segment in the routing summary is marked diagrammatic or coordinated, with the supporting reference identified
Rough-in dimension source	Every value in the rough-in dimension log traces to a written dimension, schedule, detail, or approved manufacturer document, never to a scaled measurement
Penetration resolution	Every penetration crossing a structural member is logged with its required approval status; none are resolved by assumption
Checklist coordination	Every checklist line item carries a sheet, riser, detail, schedule, specification, submittal, or manufacturer reference
Missing-information capture	Every unclear rough-in, conflicting route, missing access, or incomplete venting item encountered while building the package is recorded, not silently resolved

E. Preparation — Confirm Document Set and Systems Scope

1. Confirm current plumbing plans, legends, abbreviations, schedules, risers, isometrics, details, specifications, and approved fixture information. Verify each against the Chapter 1 navigation package before use.
2. Identify domestic water, sanitary waste, vent, storm, gas, condensate, recirculation, irrigation, and specialty systems included or excluded. Record the confirmed scope on the Project and Document Identity Record.

F. Fixture Register Construction

1. Locate each plumbing fixture and equipment item on the architectural and plumbing plans. Cross-check every fixture symbol against the Chapter 4 room-by-room layout summary.
2. Create a fixture register with tag, room, type, model or basis of design, mounting condition, and document references. Populate one row per fixture or equipment item.
3. Match fixture tags to plumbing schedules, architectural schedules, specifications, and approved submittals. Confirm each tag resolves to a single, consistent schedule entry.
4. Identify water closets, lavatories, sinks, tubs, showers, laundry fixtures, appliances, hose bibbs, floor drains, cleanouts, water heaters, pumps, and treatment equipment. Classify each fixture register entry by type.

G. Routing and Riser Review

1. Locate cold, hot, recirculation, drain, waste, vent, gas, condensate, and relief-discharge routes shown. Record each route segment in the routing summary.
2. Distinguish diagrammatic routing from dimensioned or coordinated routing. Mark each segment's status directly in the routing summary.
3. Do not treat a single-line diagram as an exact field route when the documents require coordination. Flag any segment lacking dimensioned support for field coordination rather than fabrication.
4. Read riser and isometric diagrams from source through branches, fixtures, vents, and termination. Trace each riser completely before recording it as reviewed.
5. Match pipe tags, sizes, materials, slopes, elevations, and system abbreviations to notes and schedules. Record each match in the routing summary.
6. Identify fixture centerlines, wall offsets, rough-in heights, floor penetrations, and equipment clearances where dimensioned. Populate the rough-in dimension log from documented values only.
7. Distinguish dimensions from finished surfaces, framing, centerlines, or fixture manufacturer requirements. Record the reference surface for every rough-in dimension logged.

H. Chases, Penetrations, and Structural Coordination

1. Locate plumbing chases, wet walls, soffits, access panels, cleanouts, valve boxes, and service clearances. Record each in the fixture rough-in checklist under access.
2. Compare pipe routes with joists, beams, trusses, posts, footings, shear walls, cabinets, stairs, and ceiling conditions. Log every crossing on the penetration and coordination list.
3. Identify penetrations requiring sleeves, fire stopping, waterproofing, structural approval, or special support. Record the required approval status for each.
4. Do not authorize drilling, notching, or cutting structural members from a plumbing diagram. Route every structural conflict to the RFI-style question list instead of resolving it independently.

I. Water Heater and Equipment Coordination

1. Locate water-heater type, capacity, energy source, venting, drain pan, relief discharge, expansion, seismic restraint, and service references where documented. Record each in the fixture register entry for the water heater.
2. Compare water-heater information with mechanical, electrical, fuel-gas, architectural, and manufacturer documents. Note any inconsistency between disciplines.
3. Identify shutoffs, manifolds, meters, pressure-control devices, backflow devices, cleanouts, traps, vents, and service points. Record each service point's location in the checklist.
4. Identify insulation, freeze protection, acoustic, testing, disinfection, flushing, and commissioning requirements. Record each requirement with its governing reference.

J. Cross-Discipline Comparison and Checklist Closeout

1. Locate slab, foundation, wall, roof, and cabinet penetrations and compare them with related discipline drawings. Cross-check against the Chapter 3 foundation checklist and Chapter 10 cabinet information where applicable.
2. Identify owner-furnished fixtures, contractor-furnished fixtures, alternates, accessories, trim, and connection responsibilities. Record each designation in the fixture register.
3. Identify required approved submittals, shop drawings, fixture templates, coordination drawings, inspections, and tests. Add each hold point to the checklist.
4. Compare fixture positions with door swings, clearances, accessibility, tile layouts, cabinets, mirrors, lights, and electrical devices. Record every conflict found.
5. Identify missing dimensions, unmatched fixture tags, route conflicts, inaccessible valves, or incomplete venting information. Log each on the missing-information and RFI list.
6. Create a fixture rough-in checklist organized by fixture, location, centerline, elevation, supply, drain, vent, support, backing, penetration, access, test, and inspection. Compile all prior components into the final checklist.
7. Attach sheet, riser, detail, schedule, specification, submittal, and manufacturer references to each checklist item. Confirm no line item is missing a reference.
8. Prepare RFI-style questions for unclear rough-ins, conflicting routes, missing access, structural penetrations, or equipment coordination. Draft one neutral question per unresolved issue.
9. Review the final checklist with architectural, structural, cabinet, electrical, and HVAC information. Confirm every deliverable component in Section B is complete before closing the chapter.