UL Rated Safes: Fire Classes, RSC and TL Ratings in One Place

A UL rated safe names a standard, a rating and a lab

A UL rated safe has been evaluated by Underwriters Laboratories against a named standard, and carries the result on a label. Our table on this page includes every safe we track with a fire rating certified by UL, or a UL burglary rating: RSC, TL-15 or TL-30. It covers home safes, fire safes, document boxes, floor safes, wall safes and gun safes.

The ratings you'll see fall into three families:

• Fire, UL 72: a class and a time, such as Class 350, 1 hour
• Burglary, UL 1037: the Residential Security Container (RSC) rating, Levels I to III, common on gun safes
• Burglary, UL 687: tool-resistant classes TL-15 and TL-30, plus TRTL and X6 classes

Locks carry their own ratings too, under UL 768 for mechanical combination locks and UL 2058 for high-security electronic locks. A UL listed lock on an unrated safe isn't a UL rated safe, and our table doesn't count it as one.

This page is the shopping view. For the full explanation of each rating, read our guide to UL safe ratings. For burglary ratings from any lab, see burglary safes.

Who should insist on a UL rating, and who can skip it

Insist on an independent rating when the safe has a specific job you can't afford to get wrong:

• Irreplaceable paper — deeds, wills, passports, certificates, cash: a UL 72 Class 350 rating
• Photos, film and other non-paper records — Class 150 is the class UL 72 intends for paper and non-paper records
• Sensitive media — Class 125 adds flexible computer disks in UL 72's scope
• Firearms and valuables against theft — a UL RSC rating, or a TL class for high-value contents
• Insurance or compliance needs — ask the insurer or the official source what it accepts

You can reasonably skip a UL rating for a small lock box meant to keep honest people honest, or a document bag inside a locked safe. In those cases, judge the product on its lock, its backup and any fire claim that names a lab. California is one place where the rating has legal weight for gun safes: the state DOJ accepts a gun safe listed as meeting the UL RSC standard by a Nationally Recognized Testing Laboratory. Check the official DOJ page for the current rules.

What to look for in a UL rated safe: the full label, not the logo

The Marketing Department loves the letters "UL." It's less fond of the numbers that follow them. A UL mark on a listing is the start of the sentence, not the end.

Fire: class, time and the impact test

UL describes its fire label as having two parts: a class, which is the maximum interior temperature reached during the test, and a time rating. The current edition of UL 72 (17th, January 2026) sets out what each class is for:

• UL Class 350 safes: interior at or below 350°F; intended for paper records
• Class 150: paper and non-paper records
• UL 125 rated safes: the strictest class; also flexible computer disks

Time ratings come in fixed steps, for example ½, 1 or 2 hours. Some products also carry a fire-and-impact rating. UL tests them before and after a 30-foot drop while hot, then returns them to the furnace. That's a meaningful extra for a safe on an upper floor.

Burglary: RSC versus TL

A UL rated burglary safe will name one of two standards:

• UL 1037 RSC: Level I resisted a 5-minute attack by one operator with common hand tools and a small electric drill. Levels II and III use two operators, 10 minutes and more aggressive tools.
• UL 687: a UL rated TL-15 safe or TL-30 safe resisted tool attack on the door and front face; TL-30 is the higher class. I haven't verified UL 687's exact test minutes from UL, so they aren't quoted here.

A UL RSC rating is a burglary rating only. It says nothing about fire.

Rated by UL, verified by someone else, or claimed

Intertek, which issues the ETL marks, is an OSHA-recognized Nationally Recognized Testing Laboratory and can test to UL standards. But not every ETL claim is a full UL test. Intertek's verification for one maker's chests and files, for example, uses a modified UL 72 with the fire endurance test only. That's useful information. It's not the same as a UL 72 classification, and a careful listing says which it is.

Below both sits the manufacturer's own claim: "tested to UL standards" with no lab named. In our table, that's a claim, and it's labeled as one.

Reading the label itself

A UL rating should be traceable from the listing to the safe. When you compare models, look for these details in the listing, the manual or on the label inside the door:

• The standard number — UL 72, UL 1037 or UL 687
• The class or level — Class 350, RSC Level I, TL-15
• The time, for fire ratings — ½ hour, 1 hour, 2 hours
• Impact, if claimed — a separate fire-and-impact rating
• The edition, where given — older ratings were tested to earlier editions of the standard

If the listing gives the rating but the manual doesn't mention it, ask the manufacturer before buying. A rating that only appears in ad copy is hard to hold anyone to.

Insurance ratings: B, C and what they're not

Safe insurance ratings, such as B and C, are construction classes, not attack tests. Liberty Safe describes a B safe as having a body under ½ inch and a door under 1 inch, a C safe as at least ½ inch and 1 inch, and notes neither class is tested by UL. If an insurer asks for a rating, ask it which standard and level it means.

How to read the UL rated safe table

The table lists every safe we track with a UL fire rating or a UL burglary rating. Reading notes:

• Fire rating shows the time, the class or temperature, and the certifier. Only UL-certified fire ratings qualify a safe for this page.
• Burglary rating shows UL RSC, TL-15 or TL-30 when stated.
• "—" means not confirmed. The manufacturer didn't state it, or we couldn't verify it.
• Type lets you separate gun safes from home and document safes.

Start with the rating that matches what you're protecting: a fire class for records, a burglary rating for theft, or both. Then compare size and weight among the safes that qualify. When you shortlist a model, ask the manufacturer for the UL file or listing details and match them to the label on the safe. A rating you can trace back to the lab is the whole point of buying a UL rated safe.

Buying a safe on its UL rating

Write down the rating you need: the standard, the class or level, and the time for fire. Filter the table for it, then check each shortlisted safe's label or listing details against that line. If a listing says only "UL" with nothing after it, ask the manufacturer which standard, and get the answer in writing. Then check the price on the safes that pass.