10 Best Key Lock Boxes 2026 in the United States

The Master Lock Key Lock Box 5400EC5 is designed for secure outdoor storage of up to five standard house keys, making it a solid choice for realtors, landlords, and property managers who need quick yet safe access to properties. Its metal body combined with a vinyl-coated shackle offers good durability and helps prevent damage or scratching to door hardware. The four-digit combination lock lets you set and reset your own code, providing keyless convenience without the worry of lost keys or batteries. This lock box is weather-resistant thanks to a protective shutter covering the combination dials, which is important for outdoor use.

At about 6¼ inches tall and 3¼ inches wide, it’s compact enough to be portable but still large enough to hold multiple keys securely. The shackle fits most common door knob styles, allowing easy mounting on various doors or fixtures. One drawback is that it only holds up to five keys, which might be limiting if you have many keys to secure. Also, while it’s built for outdoor use, extreme weather or tampering could still pose challenges, so placement matters.

The package includes five lock boxes, which is great for managing several properties or sharing among a team. The product comes with a limited lifetime warranty, backing its reliability. If you want a straightforward, robust lock box with a customizable code system and reasonable capacity, this Master Lock is a dependable 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 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.