Fort Knox vs Liberty gun safes: who publishes what

A note on method first. This is a spec-and-listing comparison, not a test report. We do not burn or attack safes. Every figure below comes from Fort Knox, Liberty, or a named retailer's spec sheet, and every value in the tables links to the page it came from, checked 2026-10-05. Scores follow the published gun-safe rubric on how we rate, which weights an independent burglary listing most heavily (30 percent), then construction and fire evidence (20 percent each), then lock, fit and support.

One structural difference shapes everything that follows. Liberty sells a ladder of named series with a published steel gauge for each, several of them available on Amazon. Fort Knox sells eight series built to order, configured through a dealer, with a mechanical dial standard across the range. So the honest comparison is not brand against brand but price pair against price pair.

The entry pair: Maverick 6031 vs Colonial 23

Fort Knox's cheapest gun safe is the Maverick, published as "Starting at $2,759" on its own build-and-price page (Fort Knox, checked 2026-10-05). Liberty's entry to a UL RSC rating is the Colonial. Below that, the Liberty Centurion is cheaper still but carries no burglary listing at all, which is why it is not in this table; our Liberty safes review covers where that line falls.

The Maverick is the heavier, thicker-doored safe: 770 lb, a 10-gauge uni-body shell and a 3/8-inch steel plate door, against the Colonial's 12-gauge body. Both are quoted at the same fire figure by their respective sheets, 75 minutes at 1,200°F, with one complication on the Fort Knox side we come back to below. The Colonial's advantages are not in the metal: a listing Liberty itself gestures at, a warranty that transfers, and the ability to order one today rather than in two months.

The mid-range pair: Defender 6031 vs Lincoln 25

This is the matchup most buyers in this bracket are actually weighing, and it is the closest on paper. Fort Knox publishes the Defender as "Starting at $4,061"; the Lincoln is Liberty's 10-gauge series.

Both are 10-gauge bodies at roughly 60.5 inches tall. The Defender adds eleven 1-1/2-inch solid steel locking bolts and a 1-3/4-inch reinforced fire door; the Lincoln answers with ten 3/8-inch-thick locking bars, a ball-bearing hardplate and dual relockers, per Liberty. The Lincoln is 767 lb against the Defender's 895 lb, and the Defender's claimed fire protection is two hours at 1,700°F against Liberty's two hours at 1,200°F.

The Lincoln wins our score for one reason: it is the only safe on this page whose burglary listing is stated by the manufacturer. Liberty's product page names the UL Residential Security Container listing outright (Liberty). For the Defender, you are relying on Dean Safe's spec sheet.

The heavy pair: Protector 6637 vs Presidential 25

At the top of both ranges the safes get thick and heavy, and the evidence does not improve to match. Fort Knox publishes the Protector as "Starting at $4,378"; the Presidential is Liberty's 7-gauge flagship.

Both land on a 7-gauge body. The Protector is the bigger box by a wide margin: 66.5 inches tall and 37 inches wide, with 62 inches of interior height, against the Presidential's 60.5 by 30.25 inches. If you own long scoped rifles, that interior height is the number to care about, not the rack count. The Presidential answers with a composite door, twelve 1/2-inch locking bars, a factory dehumidifier and motion-sensing lighting included.

Capacity claims need the usual discount. Fort Knox rates the Protector 6637 at 48 guns and Liberty rates the Presidential 25 at 22 long guns, but those are rack counts on a flat rack with nothing mounted. Our gun safe size guide explains why a real collection fits at roughly half the published number.

Who states the burglary listing

This is the difference that moved our scores, so it is worth being precise about. A UL RSC listing means the design passed UL's Residential Security Container test. At Level 1 that is a five-minute attack by one technician with common hand tools such as drills, screwdrivers and hammers (UL). It is an entry-level burglary rating measured in minutes, it says nothing about fire, and our UL RSC explainer walks through all three levels.

Liberty. The Lincoln page names the listing itself: a "UL-listed 10-gauge steel safe body" rated as a residential security container. The Colonial and Presidential pages say "UL-listed body" without naming the standard, and the RSC designation for those two comes from retailer Dean Safe's spec sheets. So Liberty's evidence runs from clearly stated to implied, depending on the series.

Fort Knox. Fort Knox's own series page for all eight ranges does not contain the words UL, RSC, residential security container, or burglary rating anywhere (Fort Knox, Gun Safes page, checked 2026-10-05). Neither does its Fort Knox Difference FAQ. Every RSC claim for these safes that we could find is a dealer's: the Maverick sheet says "UL Listed Residential Security Container Burglary Rating", the Defender sheet says "UL listed Residential Security Container Burglary Rating (Exceeds CA DOJ Requirements)", and the Protector sheet says "UL RSC Rating".

We treat all three Fort Knox models as RSC-listed on the strength of three independent dealer sheets agreeing, which is why they sit in our UL RSC tier. But a dealer sheet is not the manufacturer's statement and it is not a UL listing document. If you buy a Fort Knox, ask the dealer to put the UL listing in writing against your specific model and serial, the same way we tell readers to in our gun safe red flags checklist.

On California, the direction of evidence flips. Liberty states on its own product pages that its safes are California DOJ-approved firearm safety devices. Fort Knox makes no California claim we could find; the "Exceeds CA DOJ Requirements" line is the dealer's wording. California's standard sets construction minimums, including at least 12-gauge steel for a single-walled safe and three 1/2-inch locking bolts, and it accepts a UL RSC rating as an alternative (11 CCR § 4100, via Cornell LII). Both brands clear those construction minimums on their published specs, but only one of them says so.

Fire claims: bigger numbers, same missing lab

Neither brand names a testing laboratory for any fire rating in this comparison. Liberty's claims run from 75 minutes on the Colonial to two hours on the Lincoln and 2.5 hours on the Presidential, all stated at 1,200°F. Fort Knox's claims are hotter: 1.5 hours at 1,600°F for the Maverick series and two hours at 1,700°F for the Defender, Protector, Executive and Guardian (Fort Knox).

An independently verified fire rating reads differently. Under UL 72, Class 350 rated devices are intended to protect paper records: the class number is the maximum interior temperature the device must hold, and the time is how long it held it in UL's furnace test (UL 72). Neither Fort Knox nor Liberty publishes a UL 72 classification or an ETL verification for these safes, so a higher temperature claim here tells you about the marketing, not the furnace. If independently verified fire protection is your priority, the brand to look at is American Security, whose NF6036 pairs a UL RSC listing with an ETL-verified 90 minutes at 1,200°F. We compare that line against Liberty in AMSEC vs Liberty safes, and our safe fire ratings explainer shows how to read both kinds of claim.

Steel and door plate: Fort Knox gives more, less predictably

Steel gauge runs backward: a lower number is thicker steel, and our steel gauge explainer converts the common gauges to inches.

Liberty publishes a gauge for every series, and it ladders cleanly: 14 (Centurion), 12 (Colonial), 11 (Franklin), 10 (Lincoln), 7 (Presidential). Fort Knox's published numbers do not ladder. The dealer sheets list a 10-gauge uni-body shell for both the entry Maverick and the mid-range Defender, then 7 gauge on the Protector (Defender sheet, Protector sheet). What climbs with price in the Fort Knox range is the door: a 1-1/8-inch reinforced fire door with a 3/8-inch plate on the Maverick, a 1-3/4-inch door with two layers of fireboard on the Defender and Protector, and more bolts, nine on the Maverick against eleven on the other two.

One source conflict to flag: Fort Knox's own series page states a "1/2" door edge thickness" for the Defender, while Dean Safe's sheet for the Defender 6031 lists a 1/4-inch steel plate inside a 1-3/4-inch door. Those describe different things, total door edge against the plate within it, but a buyer comparing door plate across brands needs to know which number they have been handed.

Gauge is an input. A listing is a result: it shows a design survived a timed attack. That is why a thicker Fort Knox and a thinner Liberty can sit in the same tier on this site, and why both of them sit below a TL-rated commercial safe no matter how much steel either carries.

Locks: mechanical as standard versus mechanical as an option

This is the clearest point in Fort Knox's favor, and it is easy to miss on a spec sheet. All three Fort Knox models ship with a UL-rated Sargent & Greenleaf Group II mechanical dial as the standard lock. No battery, no keypad, nothing in the entry path that can go flat in a drawer for three years.

Liberty's standard across most of the range is an electronic lock, usually a UL-listed S&G Spartan or a Dormakaba 702D, with a mechanical dial available as a choice at order on the Colonial, Lincoln and Presidential. The Presidential is the exception: Liberty lists a UL-listed S&G mechanical lock as standard there.

Neither approach is simply better. A mechanical dial is slower to open and cannot be re-coded by the owner; an electronic keypad is faster and reprogrammable but has a battery and a service life. What matters is that one brand gives you the mechanical option at no extra cost at every price point, and the other charges for it below its flagship. Our electronic vs mechanical safe locks comparison covers the failure modes of each, and best gun safes with mechanical locks ranks the safes that fit one as standard.

Warranties: the one Liberty clearly wins

Liberty offers a transferable lifetime warranty on the safe body. After a fire or an attempted break-in, Liberty says it repairs or replaces the safe, including free delivery and installation of the replacement and removal of the damaged one. You must register to activate it, and UL-listed locks carry a separate five-year warranty (Liberty warranty page).

Fort Knox covers more events but fewer owners. Its FAQ states that "the Fort Knox lifetime warranty applies to the original purchaser for the lifetime of the original purchaser" and that it covers defects in material and workmanship, forced entry and unlawful break-in attempts, and incidental damage from fire, flood or accident, with locks included under the same warranty. It excludes lost or forgotten combinations, failed combination changes, improper opening procedure, and weak or dead batteries (Fort Knox FAQ).

Read those two together. Fort Knox's coverage is broader on paper, flood and accident included, and the lock is inside the same lifetime policy rather than a five-year side agreement. Liberty's advantage is that its warranty is an asset attached to the safe. A gun safe routinely outlives the house move that prompted it; if you sell it or hand it down, the Liberty coverage goes with it and the Fort Knox coverage stops.

Price and how you actually buy one

Fort Knox publishes starting prices on its own build-and-price pages: $2,759 for the Maverick, $3,370 for the Spartan, $4,061 for the Defender, $4,378 for the Protector, rising to $24,052 for the Legend (checked 2026-10-05). Those are starting configurations. Every Fort Knox is built to order through a dealer, and the dealer listings we checked quote an 8-to-10-week lead time, so the figure you pay depends on finish, interior and lock choices.

Liberty sells through dealers too, but several series, including the Colonial, Lincoln and Presidential, also appear on Amazon, which means a published price you can see today and a delivery date measured in weeks rather than months. If you need a safe in the house before hunting season or before a new baby starts crawling, that difference matters more than any spec line on this page.

We do not print live prices for dealer-built safes on this site, because the number changes with the configuration. The figures above are the makers' own published starting prices with the date we checked them. For the Liberty models, use the buy button on each card for the current Amazon price.

Where they're made

Both brands are Utah manufacturers and both say so plainly. Fort Knox was founded in 1982 in Orem, Utah, and states that "every Fort Knox safe, vault door, and home safe is still handcrafted in Orem, Utah using American steel and American labor" (Fort Knox FAQ). Liberty says it "proudly manufactures its gun safes, home safes, and vault doors in Payson, Utah using American-made steel", and adds that "some products, including handgun vaults and select accessories, are imported" (Liberty, Made in the USA).

Liberty's exception clause is the more useful statement, because it tells you where the line falls. These are the makers' own claims; we have not audited either supply chain. Both brands appear in our best gun safes made in USA roundup, which quotes every country-of-manufacture claim per brand.

What the spec sheets don't show

• The RSC level. Neither brand's wording, nor the dealer sheets, say whether the listing is Level 1, 2 or 3. Assume Level 1 unless a document says otherwise.
• How either fire test was run. No lab, no method, no interior temperature reached. On the Maverick, not even one consistent figure.
• A UL listing document for Fort Knox. Three dealers say RSC; the manufacturer says nothing. That gap is the single thing we would want resolved before spending four thousand dollars.
• Build quality. Weld quality, door fit and how the boltwork engages are only visible in person. We have not handled these safes.
• What Liberty's security levels mean. Liberty ranks its own safes on a 10-level scale. It is a useful map of Liberty's range, not a third-party certification.
• Stored reset codes. Liberty keeps combination recovery information on file unless you ask it to delete it; our Liberty safes review covers that policy and the 2023 controversy behind it. We found no published Fort Knox policy on this, so ask any maker whether it retains a reset code for your lock.

Who should buy which

• Liberty Lincoln 25: the buyer who wants the burglary listing stated by the manufacturer, on a 10-gauge body, with three lock choices and a warranty that transfers. It is 767 lb and Liberty specifies a 26.5-inch minimum doorway, so measure first.
• Fort Knox Defender 6031: the buyer who wants a mechanical dial as standard, eleven bolts and a 1-3/4-inch fire door in the same footprint, and is comfortable taking the RSC listing from a dealer sheet.
• Liberty Colonial 23: the family that wants a UL RSC-rated safe available on Amazon, with a choice of electronic or dial lock, at the lowest price either brand offers with a listing attached.
• Fort Knox Maverick 6031: the buyer who values a no-battery mechanical lock and a 3/8-inch plate door over clean paperwork, and who can wait out the lead time.
• Fort Knox Protector 6637: long scoped rifles and a big collection. 62 inches of interior height and a 7-gauge shell, at 1,240 lb. Plan the floor, the doorway and the rigger before you order.
• Liberty Presidential 25: the most steel Liberty sells, with a mechanical lock standard, a dehumidifier and lighting included, in a footprint that still fits a normal closet.

If you want both a burglary listing and a fire rating verified by an outside lab, neither of these brands offers that combination today. Our overall best gun safes ranking is led by the safes that do, and best gun safe for an AR-15 narrows the same registry to the interior dimensions a flat-top rifle actually needs.