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Bathroom layout and fixture clearances before rough-in checklist

A pre-rough-in bathroom layout checklist for fixture centerlines, door and drawer conflicts, shower entry, toilet and vanity use space, accessibility goals, wall thickness, finish buildup, and service access before plumbing and electrical locations become expensive to move.

6 items to check

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Dimensions are taken to finished surfaces, not bare framing

Critical item

Fixture and clearance dimensions should account for backer, membranes, tile, drywall, panels, trim, and cabinet fillers.

Toilet, vanity, tub, shower, and drain centerlines match selected products

Critical item

Actual fixture models and approved plans should control rough-in centers and connection zones.

Doors, drawers, glass, fixtures, and accessories can operate together

Critical item

Normal operation should not create collisions, trapped users, blocked controls, or inaccessible storage.

Shutoffs, traps, valves, cleanouts, motors, and controls remain serviceable

Critical item

Components requiring inspection or replacement should have access consistent with product and code requirements.

Floor heights, shower slope, threshold, and adjacent-room transitions are coordinated

Critical item

The assembly should accommodate required drainage and finish thickness without unintended steps or door conflicts.

The coordinated layout is approved before rough-in begins

Field changes should be dated and accepted by authorized parties before dependent work proceeds.

Use before plumbing, electrical, blocking, or framing changes are finalized. This page coordinates geometry and use; it does not approve structural alterations or substitute for permit review. Inspect from the room, accessible framing, and dated stage photographs. Do not energize exposed electrical work, pressure-test systems without authorization, or walk on uncured waterproofing, mortar, or heating assemblies.

Reference standards

  • Approved bathroom plan, adopted state and local code, permit and inspection conditions, authority having jurisdiction requirements, signed scope, and exact plumbing, waterproofing, ventilation, heating, tile, glass, and accessory manufacturer instructions
  • Fixture rough-in diagrams, cabinet drawings, shower glass templates, accessibility requirements chosen for the project, and finished-surface dimensions

    • Tools

  • Approved plans, fixture and product submittals, permit records, and authorized change orders
  • Tape measure, level, flashlight, camera, and manufacturer-approved test records
  • Dated pre-cover photographs showing every wall, floor, penetration, backing location, and test result

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