Large Gun Safes: Reading the Specs on 24-Gun and Bigger Safes

A large gun safe starts at 24 long guns on the box

"Large" has no standard definition in the gun safe business. So this page uses a plain, checkable line: a large gun safe is a gun safe whose manufacturer advertises room for 24 long guns or more. Everything in our table meets that rule, sorted from the highest advertised capacity down.

That puts the familiar sizes on this page:

• 24 and 30 gun safes — the smaller end of full-size
• 36, 40 and 48 gun safes — wider bodies, often with deeper interiors
• 64 gun safes and up — the largest consumer models, often double-door
• Horizontal and double gun safes — wide units with two doors, sold as high capacity gun safes

Smaller safes advertised for 12, 16 or 20 guns don't meet this page's line. They're on the main gun safes page, which lists every gun safe we track regardless of size. If what you need is height for long barrels rather than width for many guns, the long gun safes page filters by exterior height.

Who needs a big gun safe, and who should skip it

A big gun safe suits owners with a growing collection of rifles and shotguns, households that want one container for guns plus documents and valuables, and anyone who expects to add guns over time. Liberty Safe's sizing advice to first-time buyers is to choose the largest safe they can afford, because interior space fills faster than expected. Cannon Safe makes a similar point: count what you own and leave room for future additions.

Skip a large safe, or look at a smaller one, if:

• You move often. Liberty notes that frequent movers may be better served by a smaller safe. Our guide on how to move a gun safe shows what moving a heavy one involves.
• The floor or the route in can't take it. Weight, doorway width and stairs decide more purchases than capacity does.
• You mainly store handguns. A handgun safe or a mid-size gun safe with door panels may do the job in far less space.
• You need it hidden. A standing gun safe at full height is hard to conceal in most homes.

If children live in or visit the home, a large safe works the same way as a small one: it protects only when it is closed and locked, with the combination and any backup key kept where children cannot reach them. Storage requirements vary by state; check your state's official government site.

What to look for in a large gun safe: capacity, weight, steel and ratings

The box said 36 guns. The box was thinking of very thin guns, standing very close together, none of them wearing a scope. That's not a knock on any one brand; the industry counts this way.

Gun capacity is a guide, not a measurement

Cannon Safe says it plainly: "Advertised gun capacity is a guide." Scopes, pistol grips, accessories and interior shelving all change how many firearms fit. Liberty Safe's product pages say capacity may vary depending on the size of the guns and scopes. I haven't found an industry standard for how gun capacity is counted, so two "36 gun" safes from different makers aren't necessarily the same size.

The numbers that decide fit are the interior ones:

• Interior height — your longest barrel plus stock, standing upright
• Interior depth — scoped rifles need it most
• Interior width — how many guns per row, and whether a shelf section takes half of it

Our guide to gun safe dimensions explains how exterior and interior sizes relate, and how much space a door panel takes back.

Weight and the floor underneath

Large gun safes are heavy, and that weight is part of the security. UL 1037 Level II and III residential security containers must weigh at least 750 lb or be anchorable. Weight also decides delivery: stairs, door widths and floor strength all have to be checked first. Cannon advises confirming floor strength and considering professional delivery for larger models. Our guide on how much a gun safe weighs covers typical ranges by size.

Even a heavy safe should be anchored if the manufacturer provides for it. A heavy safe that is also bolted to the floor is much harder to move than either one alone.

Steel and the door

Body steel is listed as a gauge, and gauge numbers run backwards: lower is thicker. Under the federal U.S. Standard Gauge, 10-gauge is about 0.141 in, 12-gauge about 0.109 in and 14-gauge about 0.078 in. Many manufacturers use a slightly different industry chart, so a stated thickness in inches is the cleaner comparison. California's DOJ gun safe standard, as one public benchmark, calls for walls of at least 12-gauge steel and a door of 7-gauge plate or two layers of 12-gauge. Our heavy duty gun safes page focuses on thicker steel.

Locking bolts get the close-up photos. Door thickness and body steel are the numbers to compare, because the bolts are only as strong as the steel they sit in.

Door layout and interior configuration

On a big safe, the layout decides how much of the capacity you can actually use. Check these on the listing or in the manual:

• Single or double door — double doors open wide but need clearance on both sides
• Door swing — which way it opens, and whether it can open past 90 degrees in your room
• Interior split — how much is long-gun racking and how much is shelving
• Door panel — pockets for handguns and small items, which also take interior depth
• Adjustable or removable shelves — useful if the mix of guns and valuables changes

A safe with half its width in shelving holds fewer long guns than the door number suggests. That can be exactly right if you also store documents or ammunition; it just needs to be a choice, not a surprise. Electrical pass-through ports for lights or a dehumidifier are another detail worth checking on large safes. Our guide to gun safe humidity covers that side.

Burglary and fire ratings

Two separate ratings matter, and they don't overlap:

• Burglary: a UL Residential Security Container (RSC) rating under UL 1037. Level I means the safe resisted a 5-minute attack by one operator with common hand tools and a small electric drill.
• Fire: a UL 72 rating states a class (the maximum interior temperature, such as Class 350 for paper) and a time, for example ½, 1 or 2 hours.

A UL RSC label says nothing about fire. A fire claim tested only by the manufacturer is a claim, not a rating. If fire protection is the priority, the fire-rated gun safes page sorts by stated fire rating.

How to read the large gun safe table

The table includes every gun safe we track with an advertised capacity of 24 long guns or more, sorted by that advertised capacity. A few reading notes:

• Advertised capacity is the manufacturer's number. Treat it as an upper bound.
• Interior dimensions, when listed, are what to compare between models of similar capacity.
• "—" means not confirmed. The manufacturer didn't state it, or we couldn't verify it.
• Steel gauge reads backwards; sort ascending to put the thickest first.
• Fire rating shows duration, temperature and who tested it. Claimed and rated are labeled separately.
• Burglary rating shows a UL RSC or other named standard when one is stated.

People searching for the best large gun safe usually want a short answer, and there isn't one that fits every collection. A practical way to narrow the list: set a maximum exterior footprint for your room, filter out anything that won't fit, then compare interior depth, steel thickness and the ratings among what's left. Two safes with the same gun count can differ by inches inside and by a full gauge in the body.

Sizing a big gun safe for the long term

Measure the room, the doorway and your longest gun. Count what you own, then add room for what you'll add. Use the table to shortlist by footprint, compare interior dimensions and steel, and read the fire and burglary ratings for who tested them. Plan the delivery and the anchors before the safe arrives, then check the price on the models that fit.