Search  for anything...
SentrySafe

SentrySafe Black Fireproof and Waterproof Safe, File Folder and Document Box with Key Lock, 14.3 x 15.5 x 13.5 inches, HD4100

  • Based on 15,055 reviews
Condition: New
Checking for the best price...
$68.00 Why this price?
Save $26.38 was $94.38

Buy Now, Pay Later

As low as $11.33 / mo
  • – 6-month term
  • – No impact on credit to apply
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Zip, Apple Pay, and Google Pay. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Free shipping on this product

FREE 30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

Availability: In Stock.
Fulfilled by Amazon
Arrives Wednesday, Oct 14
Order within 2 hours and 23 minutes
Available payment plans shown during checkout
Protection Plan Protect Your Purchase
Checking for protection plans...

Recently Viewed

Features

  • FIRE AND FLOOD PROTECTION FOR ESSENTIAL PAPERS: UL Classified to withstand high temperatures for up to thirty minutes and ETL Verified to protect contents during water exposure, helping safeguard critical paperwork during common home emergencies
  • DESIGNED FOR IMPORTANT DOCUMENT STORAGE: Spacious interior fits hanging file folders and is ideal for organizing passports, birth certificates, insurance records, and legal paperwork
  • KEY LOCK SECURITY YOU CONTROL: Durable key lock helps prevent unauthorized access and keeps the lid securely closed during fire events. Two keys are included for backup access
  • HOME FRIENDLY SIZE WITH PORTABLE DESIGN: Compact footprint fits easily in closets, offices, or under desks while remaining portable enough to relocate when needed
  • BUILT FOR EVERYDAY PEACE OF MIND: Black exterior offers a clean, neutral look that blends into home or office spaces while providing dependable document protection year round

Description

When it comes to protecting what matters most, having the right safe in your home can make all the difference. The SentrySafe HD4100 is designed for people who need reliable everyday protection for critical documents and personal valuables. From passports and social security cards to property records and insurance paperwork, this safe helps keep irreplaceable items protected from two of the most common household threats, fire and water. Built with proven fire resistant construction, this document safe is designed to endure high temperatures for extended periods, helping maintain safe internal conditions for paper documents. In addition to fire protection, the HD4100 also offers water protection, providing added reassurance during flooding, burst pipes, or storm related water damage. This makes it a practical choice for anyone looking for dependable home document storage. Inside, the safe is thoughtfully designed around document organization. The interior accommodates hanging file folders, allowing important papers to remain flat, visible, and easy to access when needed. Built in straps help keep smaller items like passports, identification cards, and certificates securely in place, reducing clutter and improving organization. This makes the HD4100 useful for families as well as home offices. Security is kept simple and reliable with a key lock system that helps prevent unauthorized access while ensuring the lid remains closed during fire conditions. Two keys are included for convenience, making it easy to share access with a trusted family member or keep a spare stored separately. The compact and portable design allows this safe to fit naturally into closets, offices, or storage areas without dominating the space. Its black exterior provides a clean and professional appearance that blends easily with most home environments. Whether used as a primary document safe or as an added layer of protection for valuables such as cash, USB drives, or keepsakes, the HD4100 delivers dependable performance without unnecessary complexity. For homeowners, renters, and remote workers alike, the SentrySafe HD4100 offers a practical balance of protection, organization, and everyday usability, helping you stay prepared and confident no matter what life brings. portable security chest, legal paperwork storage, identity record organizer, fire rated file case, household emergency storage, certificate holder safe, office record protection

Brand: SentrySafe


Product Dimensions: 13.5"D x 15.5"W x 14.3"H


Lock Type: Key


Color: black


Capacity: 0.65 cubic feet


Material: Steel and Fire-Resistant Composites


Special Feature: Anti-Theft, Fireproof


Mounting Type: Floor 1Mount


Included Components: Privacy Key Lock, Sentrysafe Hd4100Cg Fire-Safe Waterproof File, Warranty


Item Weight: 38.8 pounds


Brand Name: SentrySafe


Included Components: Privacy Key Lock, Sentrysafe Hd4100Cg Fire-Safe Waterproof File, Warranty


Model Number: HD4100


UPC: 049074021450


Manufacturer Warranty Description: One year limited warranty


Number of Items: 1


Number of Packs: 1


Unit Count: 1 Count


Item Type Name: Cabinet Safe


Manufacturer: SentrySafe


Manufacturer Part Number: HD4100


Lock Type: Key


Additional Features: Anti-Theft, Fireproof


Mounting Type: Floor 1Mount


Alarm: Lock


Water Resistance Level: Waterproof


Control Type: Key Control


Item Dimensions D x W x H: 13.5"D x 15.5"W x 14.3"H


Capacity: 0.65 cubic feet


Item Weight: 38.8 pounds


Chamber Width: 12 inches


Chamber Depth: 8.1 inches


Chamber Height: 11.5 inches


Color: black


Material Type: Steel and Fire-Resistant Composites


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Oct 14

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • Zip Pay in 4
  • Financing through Apple Pay
  • Financing through Google Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Heavy and durable
Pattern Name: Safe
Review Image by Rony
Review Image by Rony
I finally settled on this safe for my valuables after some long research on Amazon and after returning another safe of different brand I had bought earlier. Oh, boy, this safe is really heavy and durable. It requires a lot of strength to carry. The walls and the cover are very thick. No sharp edges which is a plus for such a heavy item. Good space inside. Has a good lock and its easy to open with a key. However, after some use, the rubber washer inside the door fell off and I had to glue it back in place. Relatively low profile making it easier to hide. Unlike many other safes on Amazon, this one seems well-made with precision. ... show more
Reviewed in the United States on February 15, 2026 by Rony
    • Fantastic customer support
Pattern Name: Safe
The customer service at SentrySafe/Masterlock is incredible. I had a small issue with my safe, and they made the situation right. I absolutely recommend this product, or another from the Masterlock/SentrySafe product line, because of their response to my issue alone. The safe is alright. It's nothing to write home about, and that is to be expected at under $100. It is the exact width of a "normal" manila folder, and it would be nice if it was just *slightly* wider. I would like if the lid had some sort of resistance to prevent it from being slammed. I don't have any major issues with it and I don't feel as if I'm going to break anything unless there is a manufacturing defect or I mishandle it. The handle does flex a little if you try to open the safe while it is locked, but it fine with normal use. The key isn't reinforced and will bend if you push on it the wrong way. The gasket might fall off and need to be put back into position before shutting the lid again. Those issues don't worry me now that I've dealt with their customer service department. I contacted them for one of the issues I listed above and they fixed the problem quickly and completely. Fantastic customer support. Fantastic customer support. ... show more
Reviewed in the United States on August 1, 2025 by Alex
    • Great quality safe with loads of room and at a great price point!
Pattern Name: Safe
I was very surprised at how nice this safe is. For the price point is was a really good purchase and the quality is outstanding. The box will hold a great deal. Much more than I anticipate having and it fits our needs perfectly. I do want to caution you, it is very heavy. I wasn't expecting it to be as heavy as it is, but that isn't a deal breaker for me. I feel I received a quality product that will last two life times, honestly and I am very pleased with it. Yes, I highly recommend this item. ... show more
Reviewed in the United States on May 21, 2026 by Amazon Customer
    • not perfect, but trusted brand. May be hard to close front snap
Pattern Name: Safe
I have a small Sentry Safe for storing a little extra cash and a few important documents. I have had this for years and decided I wanted a larger safe. I dont care for ones with complicated dials or buttons. I did not choose this for keeping people out. I am more concerned with just having the contents safe in case of floor or fire. This "document" sized box is what I was looking for. It is probably 2-3x the depth of the small one I linked to. It gives me more wiggle room. There are a couple of things I would change. 1, is to have an indent or handle to be able to move this without fear of slipping out from hand. 2, is to make the front clip more durable (dont use plastic) and easier to snap into place. It takes some assertive strength to make it shut. I dont need to get into it often, but it initially concerned me that I could not get it to close until I really forced it. Includes straps for creating an internal pocket of the sort on underside of lid. A small roller scooter board will help those that need to access this often and have to pull it out to do so. So I am not in love, but I am banking on the Sentry brand name to keep my goodies safe. I will update if anything falls apart. I dont think I would necessarily buy this model again, but I would buy another Sentry. I just dont care for/trust other brands ... show more
Reviewed in the United States on December 18, 2024 by Precise Disarray
    • great Quality
Pattern Name: Safe
a great safe but was a bit too large for me, so i had to return it. Was very sturdy and well made, I just did not have the extra space for it :(
Reviewed in the United States on August 12, 2026 by wiz
    • Strong and heavy
Pattern Name: Safe
Nice and big. Well made and heavy.
Reviewed in the United States on July 28, 2026 by Anon101
    • fireproof safe
Pattern Name: Safe
plastic, wimpy lock. had to roll up oversized documents to fit.
Reviewed in the United States on July 10, 2026 by Scott
    • Works Great
Pattern Name: Safe
This safe works just as intended. It has a really good solid close, and lots of storage on the inside to keep everything safe. No issues with this unit here.
Reviewed in the United States on August 7, 2026 by Dru Hilvers

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...