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5.4 Security

30 Sep, 2025 4
5.4 Security

Shipping containers are known for their strength; after all, they’re designed to carry goods across oceans. But once a container is used on land for storage, workshops, or even as a home, it needs extra security upgrades to keep your belongings safe. Luckily, there are several simple and effective ways to lock down your container.

Why Security Matters

Unmodified containers are vulnerable at the doors. Standard padlocks can be cut with bolt cutters, and unprotected windows or vents provide entry points for pests and sometimes intruders. Adding the right security features gives peace of mind, whether your container is at a construction site, farm, or backyard.

Types of Container Security

1. Lock Boxes

A lock box is a steel housing that covers your padlock, making it nearly impossible to cut or pry off.

  • Best for: Storage, job sites, and high-theft areas.
  • Pro Tip: CMW Lock Boxes are bolt-on and weld-free, giving you a heavy-duty solution that installs in minutes.

2. Puck Locks

Puck locks are round, tamper-proof locks that sit flush inside a steel housing. Their unique shape prevents bolt cutters from getting a grip.

  • Best for: Commercial and industrial use where maximum protection is needed.

3. Crossbar Locks

These are steel bars that span across both cargo doors, locking them together. They provide an extra layer of protection in addition to padlocks.

  • Best for: Long-term storage or transport containers.

4. Door & Window Security Bars

If you’ve added man doors or windows, you’ll want to secure them as well. Bolt-on bars or shutters stop forced entry without interfering with airflow or light.

  • Best for: Container offices, homes, or kiosks.

5. Motion & Smart Security

Beyond locks, many container owners add cameras, motion sensors, or smart locks for monitoring and alerts.

  • Best for: Remote locations or high-value contents.

Basic Installation Steps

  1. Choose Your Security Type – Decide if you need heavy-duty (puck/crossbar) or daily-use friendly (lock box/man door locks).
  2. Prep the Mounting Surface – Clean and mark your container doors or frames.
  3. Bolt or Weld On – Most CMW security products are weld-free, using pre-drilled bolt holes for quick installs.
  4. Test the Fit – Check that doors still open and close smoothly.
  5. Layer Security – Combine lock boxes, security bars, and smart monitoring for best results.

Final Thoughts

A shipping container’s strength is only as good as its weakest point — the locks. By upgrading your container with lock boxes, puck locks, and reinforced door/window security, you’ll ensure your belongings stay safe and secure.

With CMW’s weld-free Lock Boxes, securing your container is simple, durable, and built to last.