• SentrySafe Fire/Water File: Model HD4100

  • HD4100 Fire/Water File is rated 4.2 out of 5 by 517.
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  • LargeModel HD4100
  • Interior Capacity .65 cu.ft. cubic ft
  • Buy Now
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    Orders from SentrySafe can only be shipped to the contiguous United States.
  • Security Protection Security Protection
  • Fire Resistant Fire Protection
  • Water Resistant Water Protection
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  • UL Fire Endurance
  • ETL Verified Endurance

Top of the Line Protection

  • Fire Protection

    UL Classified to protect your valuables in a fire for 1/2 hour up to 1550°F (843°C)

  • Water Protection

    ETL Verified to protect your valuable items from flood damage up to 72 hours

  • Security Protection

    More Information

    Privacy key lock deters unwanted viewers or children from accessing the contents of the safe. These safes provide basic protection and are not intended for tool attacks.


The HD4100 holds up to 40 standard hanging folders making it the ideal storage solution for your important family or business documents. In-lid organization keeps frequently accessed items such as passports, check books and digital media within easy reach. Complete with ETL Verified flood protection and UL Classified fire protection to provide true peace-of-mind for your irreplaceable valuables.


Privacy Key Lock

Our most standard option and the simplest way to secure your valuables. Typically accompanied by a spare for convenience.

Digital Media Protection

Protect tablets, phones, external hard drives, memory cards, USB drives, CDs, DVDs and other electronic storage devices.

Accommodates Hanging Files

Keep important files like medical records, business records, financial paperwork and more organized and protected. (Hanging Files not included)

In-Lid Organizer

For small valuables like passports, extra keys or media files that you want to access quickly, this storage section makes these items readily available.


    • Exterior Size

      14.3 in H X 15.5 in W X 13.5 in D

    • Interior Size

      11.5 in H X 12 in W X 8.1 in D

    • Capacity

      .65 cu.ft.

    • Lock Type


    • Peril Type

      Security, Fire, Water

    • Weight

      38.85 lb

    • Exterior Material

      Captured Fire Insulation

    Note: All dimensions and weights provided are approximate, and are subject to change without notice.


    • Product Manual

      Download the latest owner’s manual for this product.

      View Product Manual
    • FAQs

      Find answers to the most frequently asked questions.

      View FAQs
    • Videos

      Guides to safe setup, troubleshooting, and other support needs.

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    Rated 2 out of 5 by Unsatisfied Customer from You get what you pay for I wanted a small safe to keep my personal documents safe and secure. I first bought a cheaper sentry safe that I thought would work but when I got it out of the box the bottom of the safe was swollen and wouldn't sit flat. I took it back and decided to step up a price range to this safe. It seemed great until I tried to put hanging folders and file folders in it and realized this safe was also swollen and the files couldn't fit inside without bending. I had to trim 1/4" off of every folder to get them to fit. If you need a cheap safe to keep documents safe this might work but it is a cheap quality safe. If you want a nice safe keep looking.
    Date published: 2018-11-20
    Rated 1 out of 5 by disappointed12345 from This product did not even last 2 years! Don't Buy! I have owned this safe for about a Year and half (give or take), I bought it at Walmart in Fort Hood TX right before I left for college so keep important files organized and secure. To be clear, I have never written a product review before (at least not in recent memory), however I have never been more motivated to leave one now. I have kept this safe in good condition since I have purchased it: I have never dropped it, it has always been stored in climate controlled environments (my air conditioned room), and it has never touched or stored any corrosive materials. However, one day when I opened it, the lid came off without any real force or pressure. I'm sure if this is just a defective product, which happens sometimes, but I would imagine Sentry Safe inspects and checks their products before they release them. I would also imagine this product can withstand SOME punishment (I know its not burglary proof or anything but it's a safe that's fire resistant and water proof so... its got to be some what durable). At the end of the day I'm sure this review will not make a difference or even impact the rating of this product, but I would like to know someone will probably do there research and see my review so they can avoid this and find a better product. I would like Sentry Safe to make this right and refund my money but I know this probably won't happen. I realized I have written too much, but this is how I honestly feel. Have a great day! P.S. I will include pictures.
    Date published: 2019-08-14
    Rated 4 out of 5 by Ssarge from Great amount of storage, easy to organize. This safe is just what I was looking for to organize and protect our important documents. However, with no handles, it is very awkward to move around. It also has a couple of defects: 1. The plastic cover is cracked. 2. It dumps white powder into the compartment and storage surface.
    Date published: 2019-11-29
    Rated 1 out of 5 by Unsafe from Material expanded and broke lid off It basically broke itself. Material inside expanded until lid broke off one day. Powder all over. Happened within a year.
    Date published: 2019-06-11
    Rated 1 out of 5 by Nicholas from Low grade engineering The first day I got this safe home I started to fill it. I left the lid up overnight and came back in the morning to find the entire lid broke through the material/hinge and fell off. This safe broke under its own weight on the first day.
    Date published: 2020-02-13
    Rated 1 out of 5 by Artur from Seam Bursted, Powder Leaked - HD4100 While this review was prompted by a replacement for my earlier product, I shall review the earlier product here. The first of my two safes tore at its back seam near the hinge. It leaks the powder which fills its casing. I noticed leakage as soon as I opened it, thinking the powder around the shell for the lock, in front, was dust from manufacturing/storage. With careful use, i.e., gently opening, closing, lifting, and putting down my safe, the seam in the back burst, a real nuisance when one wants to keep documents and home clean. I ended up leaving my first safe behind and buying another safe of the same model. Info for damaged safe: Model: HD4100; serial number: D-00799051. I ask SentrySafe to issue me a refund since I already purchased a replacement of the same model, with which I am very happy. The replacement was free of powder upon opening and feels sturdier than my original safe. Unfortunately, I cannot find the receipt for my first safe. Thank you, SentrySafe.
    Date published: 2018-09-11
    Rated 3 out of 5 by Chris9393 from Where is the handle? This page states under the "Features" that the HD4100 model has a carrying handle, but when I ordered one, it does not have the handle. That was one of the features I wanted since this safe is heavy (38.85 lbs. when empty). Very misleading. Hopefully I can return the safe, but I don't think I can order another SentrySafe with confidence since I have no guarantee that the features listed will actually be on the safe when I receive it.
    Date published: 2018-08-31
    Rated 1 out of 5 by Consumer 20201225 from Failed after a little over 1 year of use. Plastic sides cracked after over 1 year. The white insulation material is now exposed. The front latch does not work. It is very hard to latch.
    Date published: 2020-12-26
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