Well, I do I have tucked into a random bookshelf one of those "World Atlas" book safes that everyone already knows is a storage box and not a book, because they've been sold virtually unchanged as far as I can tell since at least the early 1990s. As a little treat to anyone observant who notices this and thinks they're so damn clever, inside I have nothing but a scaled down 3D printed replica of a cinder block.

It is astoundingly unlikely anyone will find where my valuables are actually hidden in my house, nor am I going to admit it on the internet.

Keep in mind that many "fireproof" safes misrepresent their capabilities and the fireproofing itself can severely damage or destroy safe contents in a fire.

Tl;dr: the contents slow cook and soak in a mixture of water and whatever else was present for hours to days. Depending on the severity and duration of the fire, plastics will melt, metals will tarnish, and unprotected paper, wood, and similar contents will be destroyed.

Most more affordable safes are fireproofed via a layer of drywall material. Drywall is composed of gypsum, otherwise known as calcium sulfate dihydrate: CaSO4·2H2O .

The fireproofing doesn't come from any direct insulating properties but the hydration of the gypsum. When exposed to enough heat, the water bound to calcium sulfate begins to unbind and boil out. The interior of the safe will remain at 100°C or less as the external heat energy from the fire is absorbed by this dehydration/phase change process, releasing water as steam.

This turns your safe into a big steamer/(low) pressure cooker. The safe boils during the fire, then sits and "cooks" for hours afterwards as the area cools down. The safe keypad will be inoperative, so you'll be reliant on the backup key working. If that mechanism is damaged, the manufacturer or a locksmith will need to open it. No matter what, the contents will remain in a hot, damp environment for hours to days.

Gun safe. Water proof, fire proof and locked. 200 lbs won't be walking out so easily.

Nice try, Danny Ocean.

Most of my legal documents can be reproduced easily or they are in a folder I can take with me. Apart from that I don't own anything of value.

We have a fireproof / waterproof safe box we store documents like that in (essentially this). It's not going to keep an intruder from getting the documents if they wanted to (they could just take the box with them and smash it open, it's certainly not good as an anti-theft device) but it's waterproof and fireproof and that's more what we were concerned with.

It's worth noting that these aren't rated to protect documents from a prolonged intense fire; if your house burns to the ground, it's probably not going to help.

I'm not a very legal person, but I can't think of any documents that I can't just request a copy.

If my apartment were to burn down I would have bigger problems to worry about, like homelessness and losing all my tech that took me years to aquire.

My mom bought me a fireproof safe because she was giving me some jewelry to hold for my kids, and she also had some documents for me to keep.

It sat on the floor under a bed for years. Then I decided to get appraisals of the jewelry to add it to my homeowners insurance.

When I opened the safe, everything in it was moist and moldy.

Nothing important was lost or damaged, but it was nasty as hell.

Important documents and hard drives with photos are in a fire- and water-proof safe. It's also just easier to find them since we never move it anywhere so passports and certs are all in there.

I just moved into a place with a (gun?) safe I don't know how to open. So technically I have one.

You guys have documents?

Jokes on .. whoever. My legal documents are not in one place I can’t even find them when I need to.

I don't use either, I have a small plastic folder for kinda important documents but tbh I can't really think of any documents I would actually need that are not fairly easy to get replaced.

My sister inherited my dad's big fireproof gun safes and things like birth certificates are in there (at this point maybe they should be on our person).

I have all my important documents in a fire rated safe mostly because whenever I need to get one of them I remember "oh yeah I put that in my safe". I don't own anything valuable that could fit in the safe. As someone who works on safes though I would recommend anyone who wants one for burglary protection to bolt it down if possible and don't show anyone you have it. I've seen the aftermath people's 200+ pound safes dragged through the house and out the door. Also if you own guns and have kids I would absolutely recommend a safe to put them in. Check your local laws as well because here in California starting in 2026 gun owners can be charged if they don't have their guns locked securely and someone in their household who should not have access to guns gets access to their guns.

Everyone should have a cheap fire safe. For the documents that are super difficult to replace, if nothing else.

My important documents are all in a folder inside my closet. Somewhere.

Other than that, the only stuff of value that I have are electronics, like my laptop, tv, phones.

Single person, living alone in a 1 bedroom apartment. Even I have a small fire safe.

I keep my valuables in an old CRT television that weighs more than sisyphus's boulder. No one's stealing that.

I do not have a document safe. We keep all those documents in a cigar box.

I've considered a safe, but I've heard the paper contents may mold if left in there too long. Currently too lazy to manage that.

We have a free online storage that was founded by the notaries in my country. I think nearly all important legal documents have a copy that is kept by the government.

The home safe is more about fire survival.

Banks have made it really difficult to rent safety deposit boxes lately. It used to be a common account benefit but I can't find any within a reasonable distance of me since 2023, and none which are included as an account benefit. A fireproof safe is good enough and the types of documents I put in it aren't truly irreplaceable anyways, just really hard/annoying to replace. I doubt many people use their fireproof safe for truly valuable items that would be attractive to thieves. My fireproof safe doesn't even have a proper lock.

For a large part of my life, I have always fantasized about owning anything so important, valuable, or secret that I had to store it in some sort of vault

Currently, I do not

I know my parents used to have a filing cabinet for all our important documents and such when I was growing up, but now we don't have much of anything keeping them safe. I wouldn't mind having something like a lockable filing cabinet, but I don't have enough important stuff to put in it, nor enough space in my room.

For guns, I picked up a decent one from a government surplus auction. The keypad had a couple numbers that didn't work and someone cut out the battery holder. But 10 bucks fixed both of those. So I got a $500 safe for about $45.

Less about burglars or fires and more about curious young hands.

This is not a thing one should answer in a public forum.

I have a fire resistant safe.

I have a 7.62x51 belt ammo box that I use for important documents. It's easy to find, relatively disaster tolerant, and it has a carry handle.

I've got my important data encrypted and backed up weekly to the cloud.

I used to have a 1985 sailboat where some previous owner had installed a safe. I guess cash was more important when cruising abroad 30+ years ago.

I have a caravan now. The caravan door is flimsy enough to tear open with your bare hands. I'd like to put something bolted to a cupboard wall just to lock up our electronic devices while we're out and about.