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 (2 pack) is a solid choice for securely storing up to five standard house keys each. Made from durable metal with a vinyl-coated shackle, it offers reliable protection against weather and physical wear, which is important for outdoor use. The resettable 4-digit combination lock allows you to easily choose and change your access code, providing flexible and keyless security without needing extra keys.

Its design fits most common door knobs, like ball or tulip styles, so you can hang it quickly without tools or complicated installation. In terms of size, it’s compact and portable enough to carry or place discreetly outside your home or rental property. Users appreciate its sturdy build and weather-resistant features, supported by a limited lifetime warranty.

It only holds up to five keys, so it might not be ideal if you need to store many keys or larger items. Also, since it relies on a mechanical combination, setting or resetting the code requires some care to avoid locking yourself out. This lock box is especially well suited for homeowners, vacation rental hosts, or anyone needing safe and controlled access to a small number of keys outdoors.

The Master Lock High Capacity Key Lockbox is a sturdy and reliable choice for securely storing multiple keys, access cards, or fobs. Its solid metal body offers strong protection against tampering, which is essential for anyone needing to keep keys safe at job sites, rental properties, or similar settings. The combination dial lock is easy to use, with high-contrast, widely spaced dials that work well even if you’re wearing gloves.

This lockbox includes a removable shackle, making it versatile for mounting on various surfaces or temporarily transporting between locations. Measuring 7.7 by 3 by 2.2 inches, it offers a good size that balances capacity and portability without being too bulky. The weather-resistant black cover and rubber bumper help protect both the lockbox itself and the surfaces it attaches to, which is helpful in outdoor or rough environments. While it doesn’t come with advanced mounting hardware included, the removable shackle allows for quick installation on fences, gates, or door handles.

Some users might find the capacity limited if they need to store a large number of keys or oversized items, but in typical use cases, it provides sufficient space. Its straightforward setup and solid build make it well-suited for professionals and homeowners wanting a dependable and easy-to-use key lock box.