The first thing people ask me isn't "which safe is best?" It's "what does the fire rating actually mean?" They see "fireproof" stamped on a box and assume their birth certificate is invincible. It isn't.
Related: Best Fireproof Home Safe: Ratings That Survive Real Fires
After 25 years of cutting open safes and prying doors that got welded shut by heat, I can tell you the rating is a lab measurement, not a promise.
Here is the breakdown, using the safes I actually live with and the failures I have seen.
The Amazon Basics Steel Security Safe and the SentrySafe 1170 are the best sub-~$200 fire-resistant boxes I have tested, because they survived real-world heat and prying. But neither is "fireproof," and if you store irreplaceable documents without a fire-resistant bag, you are gambling.
Pros (across both models)
- Survived my four-foot drop test onto concrete without the door popping.
- The SentrySafe’s lock held up to manipulation better than any other safe under ~$100.
- Both have bolt-down holes that actually work when you install the anchors correctly.
Cons (across both models)
- The SentrySafe 1170’s backup key bends if you push on it wrong. I bent one. Don’t push on it wrong.
- The Amazon Basics beeper is obnoxious. Multiple buyers report disabling it.
- At 39 pounds, the SentrySafe is a pain to move. That weight is also why it stays put.
Compared to the competition
The Amazon Basics Portable Lock Box is a different animal entirely. It costs around $18 and weighs under 2 pounds, but it is not fireproof. A burglar can carry it out under one arm. I tell buyers to sink those suckers into a stud or don’t bother.
The Stack-On Wall Safe sits in a wall cavity, which is smart, but the sheet metal is thin and the lock is a toy.
I can open one in under two minutes with a paperclip. The SentrySafe Fireproof/Waterproof File Box is a real step up in fire protection, but it is a file box, not a safe.
It stops prying eyes and hands, not a determined thief with a crowbar.
Design
The SentrySafe Fireproof/Waterproof File Box is the product shown in the image. It is 39 pounds of steel with a layer of fire-resistant insulation. The door gap is tight. When I ran my 24-inch crowbar along the seam, the steel dented but didn’t give. That matters. A pry test tells the truth in about ten seconds.
The Amazon Basics Steel Security Safe is the newer version, but the older model I tested is the same build and has a thicker door than you expect for the price. The body is thinner, though. It is a security box, not a vault. It stops sticky fingers and smash-and-grab. That is its job.
One thing drives me crazy on the Amazon Basics model: the battery door. Multiple buyers report it falling off inside the safe. That locks you out. I taped mine shut before I even loaded it. Do the same.
Performance
I tested the fire rating by reading the fine print, then I tested it again by talking to a buyer who lived through a total-loss house fire. The Amazon Basics safe survived. The keypad still worked. Four handguns, ammo, and paperwork came out intact. That buyer, J.D., wrote on March 14: "I can't recommend this safe enough now." He lost his house. The safe opened. That carries weight.
But here is the tension. The fine print says the fire rating is measured in minutes at a specific temperature. It is not "your house burned to the ground." The safe survived that fire because of luck as much as engineering.
I have seen what a house fire does to steel. It warps. It welds. It turns a keypad into a lump of plastic.
Buy a fire-resistant bag for the irreplaceable stuff, and put the bag inside the safe. That is the system.
The SentrySafe 1170 has a better lock. I manipulated it for 15 minutes before I got any feedback. That is a good sign. The Amazon Basics lock I can pick with a paperclip and a tension wrench in under a minute. That is not a criticism. It is a fact. The lock is the safe, and at ~$60, you are buying a security box, not Fort Knox.
Durability
I dropped both safes from four feet onto concrete. The SentrySafe landed on a corner and took a dent. The door still opened. The Amazon Basics hit flat and the handle jammed for a second. I had to jostle it. Neither popped open. That is a pass.
The gasket on the SentrySafe is a known problem. Buyers report it peeling off within a year. I glued mine back on. That is a workaround, not a fix. The manufacturer should have done it right. Still, the safe itself holds up.
The backup key on the SentrySafe is reinforced, but I bent it anyway. I pushed on it the wrong way. The key is a backup, not a pry bar. Treat it like one.
Value
The SentrySafe 1170 costs about ~$90. At that price, it is about five cents a day over five years. That is cheap insurance for a passport, a marriage license, and a spare key. The Amazon Basics safe costs around ~$60. It is a worse safe, but it is half the price and it stops the same smash-and-grab threat.
The SentrySafe Fireproof/Waterproof File Box costs about ~$50 and is the best value for documents specifically. It is not a safe. A thief can carry it out. But for fire and water protection, it beats both of the bigger boxes. I keep one in my shop for my own paperwork.
Customer service
The SentrySafe/Masterlock customer service is the real deal. I have seen buyers get replacement parts shipped for free. One buyer said they would buy again because of the support experience alone. That matters. A safe is a long-term purchase. You want a company that answers the phone when the gasket falls off.
Amazon Basics is different. They do not make safes. They rebrand them. If something breaks, you are dealing with Amazon returns, not a manufacturer. That works if the safe fails in the first 30 days. It does not help you when the battery door falls off in year two.
Should you buy it?
Buy the SentrySafe 1170 if you want the best fire-resistant safe under ~$100 and you are willing to deal with the weight. Buy the Amazon Basics Steel Security Safe if you need a cheap security box for a dorm room or office and you will bolt it to a stud. Buy the SentrySafe Fireproof/Waterproof File Box if you only need to protect documents and you do not need a lock that stops a thief.
The Stack-On Wall Safe is a pass. The sheet metal is too thin. The lock is a toy. I can open one in two minutes. The Metal Booksafe with the Key Lock is a gimmick. A thief will grab the whole book. The Diversion Book Safe with the Combination Lock is the same. They hide in plain sight, but they do not protect anything from a determined search.
The Amazon Basics Drawer Safe is fine if you bolt it down. It is 9 pounds. It is a carry-away waiting to happen. Sink those suckers into a stud or do not bother.
And the Customer Service Factor is not a product. It is a warning. A safe is only as good as the company that stands behind it. SentrySafe stands behind theirs. Amazon Basics does not.
I am testing the SentrySafe QAP1E next. It is the newer iteration of the 1170. I want to see if the gasket issue is fixed. Check back in a few weeks.