• SentrySafe Fire/Water File: Model HD4100

  • HD4100 Fire/Water File is rated 4.4 out of 5 by 60.
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  • LargeModel HD4100
  • Interior Capacity 0.65 cubic ft
  • Price Range: $50-$100
  • Security Protection Security Protection
  • Fire Resistant Fire Protection
  • Water Resistant Water Protection
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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 12.0 in W X 8.1 in D

    • Capacity

      0.65 cubic ft

    • Lock Type

      Flat Key

    • Peril Type

      Security, Fire, Water

    • Weight

      38.850 lb

    • Material

      Captured Fire Insulation

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

    Top of the Line Protection

    • Fire Protection

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

    • Water Protection

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

    • Guarantee

      After Fire Replacement Program

    Add Interior Accessories

    Customize your safe to fit your needs.

    View All Accessories


    • 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.

      View Videos
    Rated 5 out of 5 by Iowakathy from Great value, secure This safe is just the right size for home documents. It is well made, fire and waterproof. Great price
    Date published: 2018-11-18
    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 4 out of 5 by Mrc123 from Very solid but insanely heavy! This firebox is sturdy and very heavy duty. I bought it to store important documents. However, it was too heavy for me to even move it. I had to literally use a hand-cart to move it! There is no handle to aid in moving it. It is advertised as a firebox, but honestly it is more like a small safe. I like its other features but I don't know why they made it so dang heavy!
    Date published: 2018-08-28
    Rated 1 out of 5 by Martmoose from This safe is not too safe. This safe is not too safe. I can quickly break in to it with a screw driver. The locking latch needs to be metel. Also, it is too heavy not to have handles on the sides or on the top. The inside is too narrow and is barrly wide enough for hanging folders. When I tried to register it I had a very hard time finding the Modle number and serial number. The lable was not installed on the front with this information. The hinge is also plastic and can easily break. I am not too happy with the engenering for this safe.
    Date published: 2018-06-24
    Rated 4 out of 5 by Tom S from 4/5 This safe appears to be strong and secure. I did expect a little more inside space for documents; the wall of the safe are thick. I guess to withhold high temperatures for quite some time. Also one cosmetic flaw with the molding of the product was noticed but I did not feel like lugging this heavy safe back for an exchange.
    Date published: 2018-09-14
    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 5 out of 5 by Carina from Heavy, Sturdy, Thick, and Well Designed I appreciate the structure that supports file folders with space for multiple files. It is believable as water and fire proof. As Hurricane Florence headed this way I was grateful to have the ability to secure documents and computer backup, not knowing what effect the storm would have on my property.
    Date published: 2018-09-27
    Rated 5 out of 5 by DMD2 from Great Value; Great Safe I've bought two Sentry Safes, because of the value and the feeling of safety they bring for very important documents. The first I purchased many years ago, and the lock still functions very well. I bought the most recent due to the need for more safe storage, and have enjoyed it so far.
    Date published: 2018-06-30
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