Independent comparisons. We may earn from shop links. More info

Fireproof safe buying guide

Updated: 17 October 2026

The amazon.co.uk title in front of you says fireproof. That word does not tell you how long the paper stays usable, or whether the box is the thing being tested. This fireproof safe buying guide is the order before you pick a model: a named test and a time, then what that sentence covers, then water, then whether your paper fits, then whether you needed a burglary grade. Shelf prices are on the [fireproof safe comparison](/hub/safes-and-secure-storage/fireproof-safe). Which listing matches which job is on [best fireproof safe UK](/hub/safes-and-secure-storage/fireproof-safe/sub/fireproof-safe-best). Products Compared editorial team, 16 October 2026. No laboratory fire test. A qualifying purchase can earn us a commission at no extra cost to you.

The amazon.co.uk title in front of you says fireproof. That word does not tell you how long the paper stays usable, or whether the box is the thing being tested.

Our top picks

Master Lock Master Lock LCHW20101

Best overall

Master Lock Master Lock LCHW20101
9.8/10about £66.99
View offer
Amazon Basics Amazon Basics FP1401M

Best value

Amazon Basics Amazon Basics FP1401M
9.0/10about £35.49
View offer
Master Lock Master Lock FPW082FTCML

Rank 3

Master Lock Master Lock FPW082FTCML
6.8/10about £271.31
View offer
On this page
  1. 1.What the fire sentence has to say
  2. 2.Water, size and burglary are separate lines
  3. 3.What these price bands are
  4. 4.What this page will not decide

What the fire sentence has to say

A fire claim you can use has three parts in the same sentence: a named test, a time, and a temperature or a class that implies them. UL 72 Class 350 holds the interior to 177°C (350°F) so paper can survive the labelled period. It does not cover hard drives, film or USB sticks unless that listing prints its own media sentence. An archived UL note on record protection is the public source for that paper limit. A half hour and an hour are different tests. Master Lock’s European support page describes 843°C outside for 30 minutes, and 927°C outside for 60 minutes. A 30-minute chest has not been shown to do the 60-minute job. None of the nine print EN 15659 or EN 1047-1. “Fireproof” with no time is the claim to qualify.

Water, size and burglary are separate lines

Waterproof does not ride along with the fire sentence. Ask for a depth and a number of hours. In this set, one listing states 12 cm of water for 24 hours. Others say waterproof, or ETL submersion, and leave both numbers off the page. One cupboard’s attribute says the body is not water resistant while a bullet praises a waterproof bag. A4 is 210 × 297 mm. A chest can be five or six litres and still be too shallow for that sheet to lie flat. The fit is on fireproof safe for documents. Burglary is a third test. EN 1143-1, EN 14450 and Sold Secure SS 304 are attack ratings. A carry-handle chest can be picked up. The Association of British Insurers says you read the policy and ask which security devices count.
Master Lock Master Lock LCHW20101

Testsieger

Master Lock Master Lock LCHW20101
9.8/10about £66.99
View offer

What these price bands are

These are shelf prices from the nine listings kept here. Entry, about £35 to £67, is the three chests with a 30-minute fire sentence. Mid, about £68 to £124, is a bag, a lining, or an unnamed phrase. The only one-hour listing is £271.31. Specialist EN 1047-1 safes are a different shop. A higher price inside the mid band does not buy a class the page never prints. Moving from £68 to £124 can buy litres, a keypad or a shelf, and still leave the fire object as a pouch. That fork is on fireproof safe or fireproof bag.

What this page will not decide

This page will not name a winner. The criteria stop once you can read a listing without treating one adjective as three promises. Who should take which chest stays on the best-of page. A pouch is a different object, not a failed version of a tested body. Packing and keys do not change the fire sentence. If you need an insurer’s cash grade, ask which standard they will accept. If you can accept a short, named paper test, check the interior against the paper.

Common questions

What must a fire claim contain before I trust it?
You want a named test, a time, and a temperature or class, written for paper or for media. UL 72 Class 350 holds the interior to 177°C for the labelled period. A half-hour classification on Master Lock’s European support page is 843°C outside for 30 minutes. “Fireproof” without those parts is the claim to qualify.
Is a half-hour chest the same as an hour?
No. On that same Master Lock support page, a one-hour classification is 927°C outside for 60 minutes, not a longer stay at the half-hour temperature. In this set of nine listings, the half-hour pattern and the one-hour pattern are different products at very different shelf prices. A 30-minute paper chest has not been shown to meet the 60-minute line.
Does waterproof come with the fire line?
Not as a rule. Water needs its own depth and its own number of hours. One chest here states 12 cm for 24 hours. Others say waterproof, or name an ETL submersion, and leave both numbers off the page. A bag described as waterproof is not a body that has been tested.
Do I need an EN class for a home?
No UK rule requires a home fire safe, and none of these nine listings print EN 15659 or EN 1047-1. LFS 30 and LFS 60 are light paper tests, and EN 1047-1 adds a drop and a cool-down. You need an EN class when an insurer or a specification asks for it, not merely because a listing has named a UL paper test.
Is a steel door a fire rating?
A steel door is a lockable door. It is not a time, a temperature or a named test. In this set, several cupboards put the fire object in a bag or a lining, or in the phrase “per UL standards” with no class. Thickness of the door, the number of bolts and a high star rating can all be true while the fire sentence is still missing.
When do I need a graded burglary safe instead?
When the insurer names a grade, or when you are covering cash or jewellery at the bands those grades are sold for. EN 1143-1 and EN 14450 are attack ratings. This basket does not show them, and a carry-handle chest can be picked up. Ask which device counts before you treat a document chest as a cash safe.

Related pages

UK home insurance, cash and safe ratings

Fireproof safe

Best fireproof safe UK for the job you actually have

Fireproof safe or fireproof bag: chest versus pouch

Fireproof safe for documents: Class 350 and A4 fit

How to use a fireproof safe once it is on the floor

Sources

Public sources on fire classifications, burglary ratings and UK insurance wording. Listing prices and star counts are from the amazon.co.uk extracts kept for this comparison. Prices move. Retrieved 17 October 2026.

  1. Master Lock safes support (retrieved 17 October 2026)
  2. UL archived record-protection note (retrieved 17 October 2026)
  3. Eurosafe fire standards (retrieved 17 October 2026)
  4. Secured by Design, home safes (retrieved 17 October 2026)
  5. ABI home insurance (retrieved 17 October 2026)
  6. Buckinghamshire Council, what would I save (retrieved 17 October 2026)
  7. ASA LifeSafe ruling (retrieved 17 October 2026)
  8. West Lothian contents wording (retrieved 17 October 2026)