| Brand Tier | Recirculation Temp | Toilet Type | Shower GPM | Leak Detection | | :--- | :--- | :--- | :--- | :--- | | | 110°F w/ TMV | Dual-flush, concealed | 2.0 GPM (rainshower) | Mandatory, room-level | | Premium (Marriott, Sheraton, Westin) | 110°F w/ balancing valve | Pressure-assisted 1.0 GPF | 1.75 GPM | Mandatory | | Select (Courtyard, SpringHill, Fairfield) | 105°F | Gravity dual-flush 1.28 GPF | 1.75 GPM | Required at vanity only | | Extended Stay (Residence Inn, TownePlace) | 110°F w/ recirc timer | Pressure-assisted | 1.75 GPM | Optional but recommended | How to Pass a Module 14 Audit: Inspector’s Checklist When Marriott’s Global Design team (or a third-party inspector) arrives for a PAF (Pre-Opening Audit), they will run the following Module 14 tests. Use this as your pre-inspection checklist:
Module 14: Plumbing, Mechanical Systems, and Water Efficiency ensures that every guest bathroom, regardless of brand tier (from Fairfield Inn to Ritz-Carlton), delivers a consistent, safe, and luxurious experience. marriott design standards module 14
Marriott International’s Design Standards are the architectural and operational Bible for franchisees, developers, and interior designers. While Modules 1 through 13 cover everything from lobbies (Module 4) to guest room casegoods (Module 7), is arguably the most critical—and notoriously strict—section regarding technical performance. | Brand Tier | Recirculation Temp | Toilet
In this 2,500-word deep dive, we unpack every subsection of Marriott Design Standards Module 14, including compliance checklists, common pitfalls, and 2026 update notes. Module 14 is the technical specification chapter dedicated to behind-the-wall infrastructure . Unlike decorative modules (e.g., paint colors or carpet patterns), Module 14 is governed by three masters: local plumbing codes, the Americans with Disabilities Act (ADA), and Marriott’s proprietary "Guest Reliability Index" (GRI). While Modules 1 through 13 cover everything from
By: Hotel Development & Design Team