MMF Online Store : MMF Industries 221615103 Jumbo Fire-Retardant Steel Security Chest with Key Lock

MMF Industries 221615103 Jumbo Fire-Retardant Steel Security Chest with Key Lock


Price: $33.04

Brand: MMF


  • Fire-retardant steel security box with key lock protects valuables from fire
  • Durable steel construction with double-insulated walls
  • Lab tested at 1550 degrees Fahrenheit
  • Holds 9-by-12-inch documents to lay flat in bottom, includes lock with two keys
  • Measures 12-2/3-by-10-19/20-by-4 inches (WxDxH)


The MMF Industries 221615103 Jumbo Fire-Retardant Steel Security Chest with Key Lock is constructed of durable steel and engineered with double-insulated walls to protect contents from fire damage. It is lab tested at 1550 degrees Fahrenheit for 15 minutes with paper media enclosed. The contents were charred, but legible. The chest holds file folders and 9-by-12-inch documents to lay flat in bottom. The chest includes a lock with two keys and two carrying handles for convenience. The sand-colored chest measures 12-2/3-by-10-19/20-by-4-inches (WxDxH).

Safe within a safe - I found this size box fits my letter-size documents without a problem. I primarily use this fire retardant box as a box within a big safe as added protection for important original documents.

does the job - I thought carefully about which of these metal lock boxes to purchase. This box is fire-retardant, not fire proof, but it is much lighter as a result. It is very likely that I will put it in a safe deposit box, so fire proofing is not my first concern. The size is perfect for storing important papers flat in their file folders (or envelopes for warranties, etc.). The height of the box is 4. It will slide easily into a safe deposit box, and it has handles on each side to make carrying it easier. Last, it was less expensive than the other boxes. I don t imagine it would withstand anyone trying to break into it, but I doubt any of the other boxes would either, and my goal was more to get all my important papers in one place, so I could grab them in case of emergency, or easily transport them somewhere else for safe storage.



MMF Industries 221615103 Jumbo Fire-Retardant Steel Security Chest with Key Lock