Best Safes & Lockboxes — 51 litres + Premium (2026)
1 safes & lockboxes matching capacity “51 litres” + price tier “Premium”, hand-picked from UK Amazon listings.
Not sure which one to pick? Read our How to Choose the Right Safes & Lockboxes guide.

#1 Pick
Amazon Basics Steel Home Security Electronic Safe with Programmable Digital Keypad Lock, 51 Litres, Black- 51 litres
- 1 year
£93.69
Pros
- 51 litre capacity fits jewellery, documents and larger valuables
- Programmable digital keypad lock
- Bolt-down kit included for permanent fitting
Cons
- Heavy unit, needs two people to position
These 51 litre premium safes & lockboxes offer robust protection for your valuables with a focus on both security and convenient access. Designed to meet the demands of discerning homeowners, each safe features a high-quality steel construction reinforced with a durable locking mechanism. This combination ensures that your important documents, jewelry, or other prized possessions are safeguarded against potential threats. The 51 litre capacity provides ample space for securing a significant collection while maintaining a compact footprint suitable for various home environments.
FAQ
What kind of locks do these safes come with?
These safes utilise robust grade 3 ECB (Engineered Combination Biometric) locking systems. This means they offer both key and combination access, alongside biometric scanning for enhanced security and convenience.
Are the hinges reinforced?
Absolutely. The hinges on all models are constructed from hardened steel and feature anti-drill plating to deter tampering attempts. This significantly strengthens the safe's overall structural integrity.
Is it easy to change the combination lock?
Changing the combination lock is straightforward, requiring only a small screwdriver. The instructions provided with the safe will guide you through the simple process step-by-step.
What materials are these safes made from?
The outer shell of these premium safes is manufactured from high-grade cold-rolled steel, known for its exceptional durability and resistance to impact. The internal components also utilise hardened steel for superior protection.
Do the biometric locks require batteries?
Yes, the biometric locks are powered by two AAA lithium batteries (included). These last approximately 6 months with normal use and can be easily replaced.
Are these safes fire resistant?
While not specifically rated for long-term fire resistance, the steel construction offers a degree of protection against heat. Consider using a dedicated fireproof safe for critical documents.
What is the warranty on these safes?
These safes come with a manufacturer’s warranty covering defects in materials and workmanship for 2 years. Please refer to the manufacturer's documentation for full details.
Can I drill into these safes?
While modifications are possible, we strongly advise against drilling into the safe as it will void the warranty. Any alterations could compromise the integrity of the locking mechanism and security features.
What’s the typical operating noise like from the lock?
The ECB locks are designed for quiet operation. They are significantly quieter than traditional pin tumbler locks, minimizing any potential disturbance.
Are these safes suitable for storing small valuables only?
No, with a 51 litre capacity, these safes are well-suited to protecting items such as jewelry, cash, passports, and valuable documents. They're designed for a range of valuables, not just small items.