10 Best Key Lock Boxes 2025 in the United States

The SentrySafe Black Fireproof Document Box is a solid choice for those looking to protect important documents and valuables from fire. Made from durable alloy steel, it ensures that your items are safeguarded, and its fireproof feature is UL Classified to endure 30 minutes at 1550°F, making it particularly suitable for home or office use. The box also includes an ETL verification for protecting digital media such as CDs, DVDs, and USBs, which adds a layer of versatility to its use case.

The key lock mechanism is straightforward and helps keep your documents secure, with two keys included for backup. The box offers a 0.61 cubic feet capacity and fits letter-size hanging files, making it convenient for organizing various documents like passports, social security cards, and birth certificates. However, at 28 pounds, it is relatively heavy, which might limit its portability despite being floor-mounted.

It measures 15.3 inches wide, 12.1 inches deep, and 13.6 inches high, so it offers ample space without being too bulky. One notable drawback is that it lacks water resistance, which means it won't protect your documents in case of flooding or water damage. Additionally, the black color and basic design might not appeal to those looking for a more stylish or visually appealing option.

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 Barska Adjustable Key Cabinet Lock Box is a solid option for those needing to store and manage a large number of keys, with the capacity to hold up to 400 keys. Its adjustable racks provide flexibility, allowing you to organize your keys according to your needs, which can be particularly beneficial for offices or businesses that handle many keys. The colorful key tag labels are a thoughtful feature, making it easy to identify keys quickly, reducing the hassle of searching for the right one.

The key lock mechanism ensures that your keys are securely stored, giving you peace of mind, especially in environments where key security is crucial. The wall-mount design offers convenience, allowing for easy installation and saving space, which is perfect for home or office settings.

There are some drawbacks to consider. The lack of weather resistance may limit its use outdoors or in environments where moisture is a concern. Additionally, while it’s made from alloy steel, the durability may be questioned given the lightweight nature of the product, weighing only 1 pound. It may not be as robust as heavier-duty models, which could be a concern for those needing a more rugged solution. It does not come with a warranty, which might be a downside for buyers looking for long-term security in their purchase.