Comprehensive Guide to Standard Hotel Door Lock Dimensions 2024

In the hospitality industry, ensuring the security and convenience of guests is paramount. One of the critical components in achieving this is the hotel door lock system. Understanding the standard dimensions and measurements of these locks is essential for hotel owners, managers, and maintenance teams. This article delves into the specifics of hotel door lock dimensions, providing a comprehensive guide to help you make informed decisions about your hotel’s security infrastructure.

Importance of Hotel Door Locks

Hotel door locks are not just mechanisms for opening and closing doors; they are the first line of defense against unauthorized access and play a crucial role in guest safety and privacy. With advancements in technology, hotel door locks have evolved from traditional keyed systems to sophisticated electronic and smart locks, each with its own set of dimensions and installation requirements.

Standard Dimensions and Measurements

Door Thickness

The thickness of hotel doors typically ranges from 35mm to 60mm (1.38 to 2.36 inches). This range accommodates most standard hotel door locks, ensuring a secure fit and proper functionality.

Lock Case Dimensions

The lock case, which houses the locking mechanism, comes in various sizes. However, the most common dimensions are:

  • Front Plate: 60mm (2.36 inches) wide x 262mm (10.31 inches) long x 23mm (0.91 inches) deep
  • Back Plate: 60mm (2.36 inches) wide x 262mm (10.31 inches) long x 12mm (0.47 inches) deep

These dimensions ensure that the lock fits securely within the door, providing both security and ease of use.

Mortise (Latch) Dimensions

The mortise, or latch, is the part of the lock that extends into the door frame to secure the door. Standard mortise dimensions include:

  • Mortise Height: 25mm (0.98 inches)
  • Mortise Width: 24mm (0.94 inches)
  • Mortise Depth: 92mm (3.62 inches) for a standard 60mm (2.36 inch) door thickness

These measurements are crucial for ensuring that the lock operates smoothly and securely.

Lock Cylinder Length

The lock cylinder, where the key is inserted, typically measures 70mm (2.76 inches) in length. This length is sufficient to extend through most standard door thicknesses, allowing for secure locking and unlocking.

Handle Dimensions

The handle, or lever, dimensions can vary, but common measurements include:

  • Handle Length: 125-145mm (4.92-5.71 inches)
  • Handle Projection from Door: 60-70mm (2.36-2.76 inches)

These dimensions ensure that the handle is comfortable to use and provides adequate leverage for opening the door.

Types of Hotel Door Locks

Understanding the different types of hotel door locks is essential for selecting the right system for your property. Here are some common types:

Keyed Hotel Door Locks

Traditional keyed locks require a physical key to operate. While they are straightforward and reliable, they pose security risks if keys are lost or stolen.

Key Card Hotel Door Locks

Key card locks use a magnetic strip or RFID technology to unlock doors. They are convenient and easy to reprogram if a card is lost, but they can be susceptible to demagnetization.

Keypad Hotel Door Locks

Keypad locks require a code to unlock the door. They eliminate the need for physical keys or cards but require regular code changes to maintain security.

Keyless Hotel Door Locks

These high-tech locks use RFID, biometric, or voice-activated technology. They offer enhanced security and convenience but can be more expensive to install and maintain.

Smart Hotel Door Locks

Smart locks can be operated via mobile apps or QR codes. They provide a high level of convenience and security, allowing for remote access control and monitoring.

Installation Considerations

Proper installation of hotel door locks is crucial for ensuring their functionality and security. Here are some key steps and considerations:


  • Check Components: Ensure all parts of the lock are present and in working order.
  • Confirm Door Conditions: Verify that the door meets the installation requirements.
  • Determine Opening Direction: Identify whether the door opens inward or outward and adjust the lock handle direction accordingly.
  • Measure Center Distance: The center distance, typically 55mm or 70mm, is the distance from the door frame to the center of the handle rotation axis.

Tools Required

  • Screwdriver: For fastening screws.
  • Drill: For creating holes for the lock mechanism.
  • Hole Saw: For larger holes required by some lock models.
  • Chisel and Hammer: For creating recesses for the strike plate and latch bolt.
  • Tape Measure: For accurate measurements.
  • Pencil or Marker: For marking drilling and cutting positions.
  • Level: For ensuring proper alignment.

Installation Steps

  1. Digging Hole: If there is an existing lock hole, ensure it matches the new lock’s dimensions. If not, adjust the hole position accordingly.
  2. Adjust Handle Direction: Adjust the handle direction based on the door’s opening direction.
  3. Install Front Panel: Pass the cable through the door and secure the front panel.
  4. Install Back Panel: Connect the square bar and cables, then secure the back panel.
  5. Test Functionality: Ensure the lock operates smoothly and all components are properly aligned.


Choosing the right hotel door lock system involves understanding the standard dimensions and measurements, as well as the different types of locks available. Proper installation and regular maintenance are crucial for ensuring the security and convenience of your guests. By staying informed about the latest advancements in lock technology and adhering to best practices, you can enhance the safety and overall experience of your hotel guests.

For more detailed information and specific product recommendations, always refer to the manufacturer’s guidelines and consult with security experts to ensure you select the best lock system for your hotel’s unique needs.

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