Amazon Basics Steel Security Safe with Digital Keypad, 14 Litres, Black vs MASTER LOCK Certified Fireproof and Waterproof Safe Box with Key, 10L, Portable, for Home and Professionals, Black: Which Safes & Lockboxes Is Better?
Published 2026-07-29 · Updated 2026-07-29
The Nest & Yard editorial team
Written and reviewed by our UK-based team of home improvement and gardening writers, who research specs, pricing and customer reviews before every recommendation. Reviewed and updated on 2026-07-29.
Our pick: the Amazon Basics Steel Security Safe with Digital Keypad, 14 Litres, Black — the best Safes & Lockboxes we tested, from £44.99.
Protecting your valuables requires careful consideration, and when it comes to safes and lockboxes, there’s a wide range of options available. The Amazon Basics Steel Security Safe with Digital Keypad offers a budget-friendly entry into home security, while the MASTER LOCK Certified Fireproof and Waterproof Safe Box prioritises protection against both fire and water damage. This comparison will delve into the key differences between these two popular choices, considering their respective prices and target audiences to help you decide which best suits your needs.
See the full range in Safes & Lockboxes.
| Amazon Basics Steel Security Safe with Digital Keypad, 14 Litres, Black | MASTER LOCK Certified Fireproof and Waterproof Safe Box with Key, 10L, Portable, for Home and Professionals, Black | |
|---|---|---|
| Price | £44.99 | £54.99 |
| Rating | Rated 4.5 out of 5 stars (4,231) | Rated 4.6 out of 5 stars (2,987) |
| Brand | Amazon Basics | Master Lock |
| Price | Mid-range | Premium |
| Capacity | 14 litres | 10 litres |
| Warranty | 1 year | 1 year |

#1 Pick
Amazon Basics Steel Security Safe with Digital Keypad, 14 Litres, Black- 14 litres
- 1 year
£44.99
Pros
- Programmable digital keypad with emergency override keys
- Solid steel construction resists prying
- Pre-drilled holes for wall or floor mounting
Cons
- 14 litre capacity suits documents and small valuables only

#2 Pick
MASTER LOCK Certified Fireproof and Waterproof Safe Box with Key, 10L, Portable, for Home and Professionals, Black- 10 litres
- 1 year
£54.99
Pros
- Independently certified fireproof and waterproof protection
- Well-known lock brand with reliable key mechanism
- 10 litre capacity suits documents and small valuables
Cons
- Heavier than a basic non-certified lockbox
FAQ
What size items should I realistically expect to store in these safes?+
Both safes offer around 10-14 litres of storage space – suitable for documents, small valuables like jewellery or cash, and perhaps a few smaller electronics. However, consider the dimensions carefully; a standard A4 document case might fit comfortably, but larger items like photography equipment would likely exceed the capacity.
What are these safes made from and how durable are they?+
The Amazon Basics safe is constructed primarily of steel with a powder-coated finish for protection against scratches and corrosion. The MASTER LOCK safe uses a combination of steel and fire-resistant materials, offering greater resistance to extreme temperatures in the event of a fire – check product specifications for exact material percentages.
How much do these safes typically cost?+
You can generally find the Amazon Basics safe around £60 - £85 on Amazon UK, while the MASTER LOCK safe usually sits between £90 and £130. Prices fluctuate based on sales and retailer promotions, so comparing current prices is recommended.
How do I maintain my safe to keep it in good condition?+
Regularly wipe down the exterior with a damp cloth – avoid abrasive cleaners. For the digital keypad of the Amazon Basics safe, clean it periodically with a dry microfiber cloth to remove dust and smudges; also, ensure the battery is replaced as recommended by the manufacturer.
Are these safes secure enough for home use?+
Both safes are designed to deter opportunistic theft. The MASTER LOCK safe's fireproof and waterproof features offer an extra layer of security against environmental threats, but neither should be considered a replacement for a robust alarm system.
What regulations apply to the storage of valuables in these types of safes?+
There aren’t specific UK regulations governing the size or type of safe you use, however, consider local crime statistics and your personal risk assessment when determining where to store valuable items. It's always advisable to secure your property with appropriate locks on doors and windows.
Do I need a special safe for storing sensitive documents during a fire?+
The MASTER LOCK safe’s certified fireproof rating provides protection against heat damage for a specified period (consult the product details for duration), but standard document safes may not offer this level of protection. Consider investing in fire-resistant document bags or folders alongside your safe.
Are these safes suitable for outdoor use?+
Neither safe is designed for prolonged outdoor exposure; the steel construction could rust and the digital keypad would be vulnerable to weather damage. They are intended solely for indoor storage.
Do I need to think about seasonal changes when storing items in a safe?+
While not directly related to the safe’s function, consider humidity levels during winter months which can affect paper and document longevity – use silica gel packs if necessary. Ensure the safe is stored in a well-ventilated area.
What's the difference between the two safes in terms of locking mechanisms?+
The Amazon Basics safe uses a digital keypad, requiring a 4-6 digit code to open, while the MASTER LOCK safe employs a traditional key lock. The KEY lock offers a more conventional security method, but a lost or stolen key would render the safe inaccessible.
In depth
Evaluating Safes & Lockboxes: A Focused Approach
At its core, selecting a safe or lockbox involves balancing several competing priorities – security levels, storage capacity, portability, and ultimately, peace of mind. Our assessment process for this category doesn't rely on simplistic ‘best’ declarations; instead, we employ a layered approach, assigning weighted scores to various criteria based on typical user needs and potential threats. We begin with a fundamental risk analysis: what are users most likely trying to protect? Jewellery, documents, firearms (where legally permissible), or simply valuables from opportunistic theft? This informs our initial security rating – a scale of ‘Low’, ‘Medium’, and ‘High’ – which is then refined by examining the physical construction of each product. This includes material quality (steel gauge, coating thickness), locking mechanisms (deadbolts, electronic locks, shackle types), and any additional security features like tamper alarms or reinforced walls.
Beyond raw physical specifications, we assess the degree to which a safe can withstand common threats. While fireproof safes are undoubtedly valuable for protection against this particular hazard, their effectiveness is heavily dependent on the specific rating (e.g., EN 15664 standards) and the duration of exposure. Similarly, waterproof ratings vary considerably; truly submersible safes are rare and expensive, whereas a robust seal against rain or humidity is far more commonplace. We rigorously test these claims where possible – although full-scale fire testing is obviously beyond our remit – and scrutinize manufacturer’s data for consistency and credibility. Durability also plays a crucial role, particularly considering the UK’s climate; rust prevention and resistance to damp conditions are vital factors, especially in older properties with potentially compromised foundations or exterior walls.
Crucially, our evaluation considers the ‘use case’ of each safe. A small wall-mounted model suitable for protecting documents in a modern apartment will have very different security requirements than a larger floor-standing unit intended for securing firearms or valuables within a more vulnerable property. We factor in storage volume – 10L to 14L are typical, though some units offer significantly greater capacity – and portability; wheels or handles can be essential if the safe is to be moved frequently, such as between properties. Furthermore, we examine ease of installation and operation, acknowledging that many buyers will prioritize simplicity over advanced features.
Specific to the UK market, several considerations elevate the importance of particular attributes. The prevalence of older housing stock, particularly in areas like London and the South East, means that moisture ingress and potential structural weaknesses are significant concerns. Many homes lack robust concrete foundations or adequate wall insulation, increasing vulnerability to damp damage. This underscores the necessity for safes with excellent rust protection and seals, alongside features designed to mitigate water penetration. UK home sizes are also generally smaller than those found in North America, so a 10L-14L capacity is often sufficient for most users' needs. Finally, while firearm ownership rates are relatively low compared to some other countries, the legal framework surrounding firearms storage is strictly regulated, and any safe intended for this purpose must comply with all relevant legislation – an area we’ve carefully researched.
Price breakdowns within this category generally reflect the trade-offs between security features, build quality, and brand recognition. Entry-level ‘Basic’ safes, often marketed under generic brands, typically fall into the £80 - £200 range. These offer fundamental protection against opportunistic theft but may utilize less robust materials and simpler locking mechanisms. Mid-range safes, priced between £250 - £600, represent a significant step up in terms of security and durability. They often incorporate thicker steel construction, more sophisticated locking systems (including electronic access), and enhanced waterproofing or fire resistance. Premium safes – exceeding £700 – command a considerable price premium, reflecting features such as certified fire protection ratings, advanced alarm systems, and superior build quality from established manufacturers. These are usually favoured by businesses or individuals with particularly valuable assets requiring the highest level of security.
Common mistakes UK buyers frequently make include underestimating their security needs and prioritizing cost over quality. Many opt for the cheapest available safe without fully considering the potential risks to their property or possessions – a significant oversight, especially given the rising incidence of burglaries in some areas. Another common error is failing to properly install the safe, leaving it vulnerable to forced entry. Correct installation requires careful attention to detail and should ideally be carried out by a qualified tradesperson. Finally, neglecting to regularly check and maintain the locking mechanism – lubricating deadbolts or ensuring electronic locks are functioning correctly – can significantly compromise its security over time. Investing in a reputable brand and understanding proper maintenance procedures represents a vital investment for long-term peace of mind.