Clear status visibility and secure access control come together in this Occupancy Indicator Deadbolt, a practical locking solution for high-traffic restroom and privacy-focused spaces. Engineered for commercial environments, this mortise-style deadbolt integrates an internal thumb turn with an external indicator that clearly displays “In Use” or “Vacant,” helping reduce interruptions and improve user flow. An emergency release function is included for safety compliance, allowing authorized access when needed without compromising everyday privacy. Fully aligned with ADA A117.1 accessibility requirements, this deadbolt offers a reliable solution for facilities that prioritize both safety standards and user convenience in commercial applications.

1. External Occupancy Indication

The DDLK028 Occupancy Indicator Deadbolt combines room-status indication with deadbolt locking. A person outside can check the displayed status before attempting to enter or deciding to wait. This arrangement suits restrooms, changing rooms, and care spaces, helping reduce repeated knocking and accidental entry while allowing one hardware set to cover privacy locking and occupancy identification.

2. Accessibility Compliance

The product meets ADA-related requirements and the A117.1 Accessibility Code, supporting public-building projects with defined accessibility specifications. Compliance information helps architects, consultants, and contractors review hardware schedules for restrooms, accessible guest rooms, and care facilities. Project teams should also verify the complete door assembly, mounting position, and applicable local regulations before final approval.

3. Two Adjustable Backsets

DDLK028 has an adjustable backset that switches between 2-3/8 inches and 2-3/4 inches, corresponding to 60mm and 70mm door-edge dimensions. Installers can set the lock according to a new fabrication drawing or an existing bore. One Occupancy Indicator Deadbolt can therefore cover two common preparations, reducing stock variations and improving renovation-site compatibility.

4. 35–45mm Door Compatibility

The lock fits doors from 1-3/8 to 1-3/4 inches thick, equivalent to approximately 35mm to 45mm. This range covers many commercial wooden doors, interior partition doors, and light metal doors. Defined compatibility helps door manufacturers confirm connector lengths and lock positions, supporting consistent specifications across volume door production and reducing thickness-related installation adjustments.

5. Emergency Release Key Included

The Occupancy Indicator Deadbolt includes an emergency release key, allowing authorized personnel to open the door from outside when a user requires assistance or an abnormal situation occurs. Zinc alloy and brass components support accurate manufacturing and everyday operation. The release key can be managed by property, hotel, or facility teams as part of established duty-handover procedures.

1. Public Restrooms

Individual restrooms in shopping centers, offices, and public facilities need a clear way to display whether the room is in use. The Occupancy Indicator Deadbolt helps reduce repeated knocking and attempts to open an occupied door while providing deadbolt locking. ADA-related and A117.1 compliance also supports restroom projects with defined accessibility requirements.

2. Hotel Bathrooms

Hotel guest bathrooms and public washrooms can use DDLK028 to provide interior privacy locking and external occupancy identification. Compatibility with 35mm to 45mm doors covers many hotel wooden-door specifications, while the adjustable 60mm or 70mm backset supports standardized preparation. The emergency release key helps authorized hotel staff respond to exceptional situations.

3. Hospital Care Areas

Hospital restrooms, examination rooms, and care spaces requiring privacy management can use the Occupancy Indicator Deadbolt to communicate room status. The emergency release key gives medical or facility personnel an external opening method when assistance is required. Its A117.1 accessibility compliance also supports hardware review and installation planning for accessible healthcare projects.

4. Retail Changing Rooms

Individual changing rooms in clothing stores, department stores, and showrooms require privacy control and visible occupancy information. DDLK028 helps staff identify whether a room is currently being used. Two adjustable backset positions accommodate different prepared bores, while the Occupancy Indicator Deadbolt fits changing-room doors from approximately 35mm to 45mm thick.