What is the tier you are working on?
Reduces potential legal liability and insurance costs.
This is a simulated based on industry standards for global hospitality design. Note: Marriott’s actual MDS (Marriott Design Standards) Module 14 is proprietary and varies by brand (e.g., JW Marriott, Sheraton, Westin, Courtyard). This report reflects the typical content of a “Module 14” focused on Guestroom Corridors & Guestroom Entry (a common high-impact zone in prototype designs).
In a 2024 brand standard audit, 22% of flagged plumbing violations were for "audible pipe noise during flush cycles" — a direct Module 14 violation. marriott design standards module 14
Module 14 requires access to the mixing valve without destroying tile. Install a 6" x 6" access panel on the opposite side of the shower wall (e.g., in a closet or hallway).
Minimizes downtime and repair costs in the event of a fire incident. Conclusion
Marriott has moved away from gravity-only systems in full-service brands. Module 14 now mandates: What is the tier you are working on
: These standards apply to all brands under the Marriott International umbrella.
Understanding Marriott Design Standards Module 14: Comprehensive Guide to Fire Protection and Life Safety
: Requires addressable fire alarm systems that provide specific location data for any fire event. These systems must include voice evacuation and mass notification capabilities in most property types. Means of Egress Module 14 requires access to the mixing valve
Comprehensive Guide to Marriott Design Standards Module 14: Fire Protection and Life Safety
: Automatic protocols to return elevators to a designated floor during a fire event.
The Marriott Design Standards, and specifically Module 14, are not merely a "nice-to-have" checklist. They are the lifeblood of the brand's commitment to safety and quality. For anyone involved in hotel design, construction, or ownership, a deep understanding of this module is not just an asset—it is an absolute necessity. It represents Marriott's promise that behind every warm welcome is a structurally sound and profoundly safe environment, meticulously engineered to protect its most valuable asset: its people.
| Parameter | Select-Service | Full-Service | | :--- | :--- | :--- | | | 54 in (1372 mm) min | 60 in (1524 mm) min | | Height (floor to ceiling) | 8 ft (2438 mm) | 9 ft (2743 mm) | | Door recess depth | 4–6 in (102–152 mm) | 6–8 in (152–203 mm) | | Distance between guestroom doors | 8 ft (2438 mm) OC | 10 ft (3048 mm) OC | | Turning radius at intersections | 60 in (1524 mm) ADA | 72 in (1829 mm) |