10 Best Outdoor Key Lock Box 2025 in the United States

The Puroma Key Lock Box is primarily made of high-quality aluminum alloy and steel, which makes it robust and resistant to rust, cutting, and other forms of damage. This ensures that your keys are kept secure. It features a mechanical combination lock that you can reset with a custom 4-digit code, offering up to 10,000 possible combinations, which adds a high level of security. The initial code is set to 0-0-0-0, making it easy to reprogram to your desired combination.

The box's dimensions are 1.54 inches in depth, 3.07 inches in width, and 5.75 inches in height, providing ample space for storing multiple keys. This makes it particularly useful for homeowners, office workers, or even Airbnb hosts who need to share keys securely. It is designed to be weather-resistant, so it can withstand outdoor conditions, although the extent of its water resistance is not specified in detail.

The lockbox offers versatile mounting options; it can be hung on a doorknob using the removable shackle or securely mounted to a wall with the provided screws and expansion plugs. Users have found it relatively easy to set up and use, appreciating its large capacity and sturdy build. However, it’s worth noting that while it is weather-resistant, it may not be fully waterproof, so ensuring it’s placed in a sheltered location could be prudent. Additionally, while the combination lock mechanism is generally reliable, it requires careful handling to ensure longevity. With a weight of just 0.6 pounds, it is lightweight and portable. This product is well-suited for anyone needing a secure key storage solution, particularly in environments where multiple people need access to keys, like rentals or offices.

The Iron Lock® - XXL Key Lock Box Wall Mount is designed to keep your keys secure with its robust construction and tamper-resistant locking mechanisms. Made from durable zinc alloy and aluminum, it can withstand harsh weather conditions, making it suitable for both indoor and outdoor use. This lockbox features a resettable 4-digit combination lock, allowing you to change the code as needed.

The extra-large capacity is ideal for holding multiple keys or larger key fobs, which is particularly useful for homes, vacation rentals, and businesses like gyms and real estate offices. Installation is straightforward with the included screws and anchors, ensuring a secure wall mount setup. The product's waterproof feature adds an extra layer of protection against the elements.

One of the standout features is the lifetime warranty, offering peace of mind for your investment. On the downside, the 1.63-pound weight might be a bit heavy for some users, and the mechanical code lock may not be as convenient as electronic options. Additionally, while the black color is sleek and discreet, some users might prefer more color options to match their exterior decor. Nonetheless, the Iron Lock® XXL Key Lock Box is a reliable choice for those needing a secure, weather-resistant key storage solution.

The Puroma Lock Box offers a strong and practical solution for securely storing keys outdoors. Made from durable aluminum zinc alloy and steel, it stands up well to attempts at forced entry and protects your keys from weather with its water-resistant design and a protective door that shields against rain and dust. Its large size can comfortably hold multiple keys, making it ideal for homeowners, Airbnb hosts, or anyone needing emergency access to their property. Installation is flexible—you can either mount it on a wall or hang it on a door handle using the removable shackle, providing convenient options depending on your setup. The combination lock uses a 4-digit code with up to 10,000 combinations, which is both easy to set and reset, giving you solid security without complicated keys.

While water-resistant, it’s not fully waterproof, so in extremely wet conditions, you might want to check the box occasionally to ensure no moisture gets inside. Also, the metal construction, while tough, may show scratches over time if exposed to harsh outdoor elements. The size, although large, might feel bulky if you have limited space or only need to store a few keys. This lock box effectively balances security, capacity, and ease of use, making it a dependable choice for outdoor key storage.