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10 Best Key Lock Boxes 2025 in the United States

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Our technology thoroughly searches through the online shopping world, reviewing hundreds of sites. We then process and analyze this information, updating in real-time to bring you the latest top-rated products. This way, you always get the best and most current options available.

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Our Top Picks

#1

Winner

SentrySafe Black Fireproof Document Box with Key Lock, Safe Secures Files and Documents for Home or Office, 0.61 Cubic Feet, 13.6 x 15.3 x 12.1 inches, 1170

Rating
10.0
Chosen by1,422
Material
Locking Mechanism
Capacity

Most important from
15733 reviews

Material
Solid construction with a reliable key mechanism.
Locking Mechanism
Solid construction with a reliable key mechanism.
Capacity
Sturdy and spacious, perfect for securing important files.

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.

Rating
10.0
Chosen by1,422
Material
Locking Mechanism
Capacity

Most important from
15733 reviews

Material
Solid construction with a reliable key mechanism.
Locking Mechanism
Solid construction with a reliable key mechanism.
Capacity
Sturdy and spacious, perfect for securing important files.
#2

Master Lock Key Lock Box, Outdoor Lock Box for House Keys, Portable Combination Lockbox Resettable Code, 5400EC, Black

Rating
9.7
Locking Mechanism
Mounting Options
Weather Resistance

Most important from
25025 reviews

Locking Mechanism
Great quality lockbox that's easy to use and set a custom code.
Mounting Options
Ideal for securing keys in emergencies; you can attach it to various places like the pipe leading to a gas meter.
Weather Resistance
This lockbox has a combination lock with a weatherproof shield, making it very sturdy and hard to break into.

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.

Rating
9.7
Locking Mechanism
Mounting Options
Weather Resistance

Most important from
25025 reviews

Locking Mechanism
Great quality lockbox that's easy to use and set a custom code.
Mounting Options
Ideal for securing keys in emergencies; you can attach it to various places like the pipe leading to a gas meter.
Weather Resistance
This lockbox has a combination lock with a weatherproof shield, making it very sturdy and hard to break into.
#3

Barska 400 Position Key Cabinet with Adjustable Numbered Hooks – Wall Mount Steel Key Organizer Safe with Index Log, Key Tags & Lockable Door for Office or Business Use

Rating
9.7
Size and Portability

Most important from
169 reviews

Size and Portability
Sturdy yet user-friendly, though setup can be a bit challenging.

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.

Rating
9.7
Size and Portability

Most important from
169 reviews

Size and Portability
Sturdy yet user-friendly, though setup can be a bit challenging.

Buying Guide for the Best Key Lock Boxes

When choosing a key lock box, it's important to consider your specific needs and the environment in which the box will be used. A key lock box is a secure container that holds keys and can be accessed by entering a code or using a key. These boxes are commonly used for real estate, property management, and personal security. To ensure you select the best key lock box for your needs, you should evaluate several key specifications.
MaterialThe material of a key lock box is crucial for its durability and security. Common materials include metal alloys, stainless steel, and heavy-duty plastic. Metal alloys and stainless steel are more resistant to tampering and weather conditions, making them ideal for outdoor use. Heavy-duty plastic may be suitable for indoor use or less critical applications. Consider where you will place the lock box and choose a material that can withstand the environmental conditions and potential tampering.
Locking MechanismThe locking mechanism determines how the key lock box is accessed. There are combination locks, key locks, and electronic locks. Combination locks are convenient as they do not require a physical key, but the code can be forgotten or guessed. Key locks are straightforward but require you to keep track of an additional key. Electronic locks offer advanced security features and ease of use but may require batteries. Choose a locking mechanism based on your preference for convenience and security.
CapacityCapacity refers to the number of keys or the size of items the lock box can hold. Some boxes are designed to hold a single key, while others can accommodate multiple keys or even small key fobs. If you need to store multiple keys or larger items, opt for a box with a larger capacity. Assess your storage needs and select a box that can comfortably hold all the items you intend to secure.
Mounting OptionsMounting options determine how and where you can install the key lock box. Some boxes are designed to be wall-mounted, while others can be hung on a doorknob or railing. Wall-mounted boxes offer more security as they are fixed in place, but they require installation. Portable options are easier to set up and move but may be less secure. Consider where you plan to use the lock box and choose a mounting option that suits your installation preferences and security requirements.
Weather ResistanceWeather resistance is important if you plan to use the key lock box outdoors. Look for boxes that are labeled as weatherproof or waterproof to ensure they can withstand rain, snow, and extreme temperatures. A weather-resistant box will protect the contents from environmental damage and ensure the lock mechanism continues to function properly. If the box will be used indoors, weather resistance may be less of a concern.
Size and PortabilityThe size and portability of a key lock box can affect its usability and convenience. Larger boxes may offer more storage space but can be more cumbersome to install and transport. Smaller, portable boxes are easier to carry and install but may have limited capacity. Consider how often you will need to move the box and the amount of space you have available for installation. Choose a size that balances your storage needs with ease of use.

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