2026-01-14
Building a Simple, Safe Coin Storage System (The 3 Layers)
You do not need a bank vault. You need defense in depth. Here is the 3-Layer System that protects against Fire, Theft, and Moisture.
Defense in Depth means that if one layer fails, the next layer holds.
Layer 1: The Environment (Ammo Can)
- Goal: Protect against Moisture and localized Fire.
- Method: Put your tubes inside a metal .50 cal Ammo Can ($15). Throw in a Silica Gel Pack. The rubber gasket keeps air out.
Layer 2: The Physical Barrier (The Safe)
- Goal: Protect against Smash-and-Grab Thieves.
- Method: Put the Ammo Can inside a TL-15 or TL-30 rated Safe. Bolt the safe to the concrete floor.
Layer 3: The Alarm (Perimeter)
- Goal: Protect against Time.
- Method: Your home alarm system. The goal of the safe isn't to be impenetrable; it is to buy time until the police arrive.
The Golden Rule: Tell NO ONE. OpSec (Operational Security) is your strongest layer.
Safe Installation Guide
How to bolt a safe to concrete without cracking your foundation. Our DIY guide for maximizing security.