An unbolted safe is a strongbox with a handle for carrying it away · review
The largest safe on this shelf by volume and the only one that publishes no dimension at all.
The conclusion Three point four cubic feet is the most volume on this shelf for the lowest price per cubic foot, with a programmable keypad and a key override so a dead battery is not a crisis. Beyond that the page is empty: no external dimensions, no internal ones, no body material, no wall or door thickness, no anchoring and no grade. At this size the missing external measurement is the one that decides whether you can even get it where it needs to go.
No dimensions. No material. No thickness. No anchoring. No grade.
Three point four cubic feet.
That is roughly the volume of a small washing machine drum, and no external height, width or depth appears anywhere.
You cannot tell whether it goes in a wardrobe, under a desk, or through a loft hatch.
This shelf’s buying tip asks you to subtract the door and the walls from a capacity. Here there is nothing to subtract from.
Not carried — levered.
A small safe is taken away whole, which is what this shelf’s introduction is about.
A safe this size is a two-person job with a trolley. What it is vulnerable to is being tipped over and worked on, with its hinges exposed.
Anchoring keeps it upright. The page does not mention it.
A keypad with no override is a welding job waiting to happen.
Cheap electronic locks fail, and batteries die. A key override turns that from a disaster into an errand.
The cost is that the override lock is often the weakest part of the door. Keep the keys away from the safe.
On sale at around $99 on the American Amazon store at the time of checking.
Prices and availability are what Keepa reported on the date this page was updated; both move.
Prices quoted in this text were read on October 8, 2026. The live price is at the top of the page.
| Capacity | 3.4 cubic feet — stated, and the largest in this group by almost double |
|---|---|
| Dimensions | Not published — neither external nor internal. It is the only safe in this group with no measurement at all, at the largest claimed volume |
| Lock | A programmable keypad with a key lock as well — two methods, stated |
| Body | Not described beyond being a safe. No material, no wall thickness and no door thickness |
| Anchoring | Not published |
| Grade | Not published |
| Contents | Not described |
| Stated for | Documents, money and valuables |
| Amazon reference | B0FNQVSJQQ |
| EAN | 0706859236835 |
Unknown from the page, and that is the problem with this listing. Three point four cubic feet is a large object — roughly the volume of a small washing machine drum — and no external dimension is published, so you cannot tell whether it goes in a wardrobe, under a desk or through a loft hatch. This shelf's buying tip asks you to subtract the door and the walls before believing a capacity; here there is nothing to subtract from. Ask the seller for the external height, width and depth before ordering.
It matters differently. A small safe is carried away whole, which is why this shelf's introduction opens on bolting down. A 3.4 cubic foot safe is heavy enough that carrying it is a two-person job with a trolley — but it is also big enough to lever, tip and work on, and a heavy safe that tips over is a safe with its hinges exposed. Anchoring at this size is about keeping it upright and immovable, not just about theft, and this listing does not mention it at all.
Yes, in practice. A keypad safe with no override is a safe that becomes a welding job when the batteries die or the electronics fail, and that is a real failure mode on cheap electronic locks. A key override means a dead battery costs you a trip to wherever the key lives. The trade is that the override lock is often the weakest part of the door, so keep the keys away from the safe and out of the house if the contents justify it. At least seven of the seventeen safes in this group offer both.
Between security devices of the same category and nearby price. Shown: what they all state. A half-filled column says nothing.
| Model | Price | Capacity | Lock |
|---|---|---|---|
| AONBNOCT EJ 3.4 cu ft digital security safe | $99 | 3.4 cubic feet — stated, and the largest in this group by almost double | A programmable keypad with a key lock as well — two methods, stated |
| Amazon Basics 50SAM steel home security safe, 1.8 cu ft | $105 | 1.8 cubic feet — stated. The second largest in this group, behind a 3.4 cu ft safe | An electronic keypad — stated, with no code length, no wrong-entry lockout and no override method described |
| SentrySafe HD4100 fireproof and waterproof file box, 14.3 × 15.5 × 13.5 in | $68 | Not published as a volume. The listing says instead that the interior fits hanging file folders — passports, birth certificates, insurance records and legal paperwork are named | A key lock with two keys, stated to keep the lid closed during fire events. That last clause matters: a lid that springs open in a fire is a fire box that has failed |
| Amazon Basics 25EI | $58 | 14 liters | Electronic keypad with 3 status lights |
Details checked on October 8, 2026.
Someone who needs bulk storage and will confirm every dimension with the seller first
Amazon reports what buyers took in the month before this page was last checked: at least 50.
The figure is a floor, rounded by Amazon, and read through Keepa — it says what buyers picked, not what a maker claims.
Specifications: the manufacturer sheet for home security products and the matching Amazon product page. Prices and availability: Keepa. Every figure on this page names its source.
Book-shaped diversion safe · 3-digit combination · fabric cover and spine · for a bookshelf
A diversion safe shaped like a book, with a fabric cover and spine and a three-digit combination lock. Amazon Basics states it is meant to sit between other books on a shelf.
Best for: Concealing something small in plain sight, in a house where nobody is looking hard.
14 L · digital keypad · 2 override keys · concealed anti-pry hinges · adjustable shelf · 4 × AA
A 14-liter steel safe with a digital keypad, two emergency override keys kept separately, concealed hinges described as anti-pry, and a removable adjustable shelf. It runs on four AA cells.
Best for: The default household safe: big enough for documents, small enough to bolt into a wardrobe floor.
≈ $58
200 × 310 × 200 mm (7.87 × 12.2 × 7.87 in) · self-programmable electronic lock · single-wall body · basic valuables protection
BURG-WÄCHTER describes the Favor S3 E as basic valuables protection: a single-wall body with a self-programmable electronic lock, in a furniture safe of 200 × 310 × 200 mm (7.87 × 12.2 × 7.87 in).
Best for: A household that wants a safe from a safe manufacturer rather than from a general brand.
≈ $140
