10 Best Key Lock Boxes 2025 in the United States

The SentrySafe Fireproof and Waterproof Chest Box is a sturdy option for anyone looking to store important documents and valuables securely. Its notable strength lies in its fireproof and waterproof features; it can withstand temperatures up to 1550°F for 30 minutes and is verified to resist water damage for 72 hours, making it ideal for protecting items in case of an emergency. The interior light is a thoughtful addition, making it easier to find items even in low light conditions. With a capacity of 0.28 cubic feet, it's compact yet spacious enough for essential documents, small valuables, and USBs.

On the downside, the box uses a tubular key lock, which, while secure, may not offer the convenience of digital locks or combination locks that some users prefer. Additionally, at 20 pounds, it may be considered heavy for some, especially if frequent relocation is needed despite the carrying handle. The size could limit what you can store; larger items won't fit, which might be a drawback for those needing to store bigger valuables.

This lock box is well-suited for individuals or families looking to secure important papers and small items against fire and water damage. It’s excellent for home use but might not be ideal for those seeking a more portable solution or needing to store larger items. Its solid construction and security features make it a recommended choice for peace of mind.

The Master Lock Key Lock Box (model 5400EC) is a robust and versatile option for securely storing up to five standard house keys. Made of durable metal, it features a four-digit combination lock that you can reset with thousands of possible codes for personalized security. Ideal for both indoor and outdoor use, the lock box is coated with vinyl to prevent scratches and includes a shutter door to protect the combination dials from weather elements.

The shackle is designed to fit most door knob styles, making it highly adaptable. Measuring 6.25 x 3.25 x 1.5 inches, it is relatively portable and can be conveniently mounted on a door or other surfaces. It should be noted that while the box is weather-resistant, it may not be fully waterproof, so placement in very wet conditions could be a concern.

The capacity, while adequate for most, is limited to five standard keys, which might not be enough for some users with larger key sets. Despite these minor drawbacks, the combination of durability, ease of use, and security makes it a solid choice for anyone in need of a reliable key storage solution, especially for outdoor use or real estate purposes.

The Puroma Key Lock Box is a versatile and secure option for storing your keys. Made from high-quality aluminum alloy and steel, it is designed to resist rust, cutting, and prying, making it highly durable and secure. It features two installation methods: a removable shackle for hanging on a doorknob and a wall-mount option using screws and expansion plugs. This flexibility makes it suitable for various settings, including homes, offices, and rental properties.

With a pre-set combination code of 0-0-0-0, users can easily reset to a custom 4-digit code, offering 10,000 possible combinations for enhanced security. The large capacity allows for storing multiple keys, making it convenient for emergency access or sharing keys with others, such as Airbnb guests or pet sitters. Additionally, its weatherproof design ensures it can withstand outdoor conditions.

However, at 1.54 inches deep, some users may find it slightly bulky for certain locations, and while the combination lock is handy, it may not suit those preferring a key-based system. Ideal for those needing a reliable and adaptable key storage solution.