Best ways to secure your Container – Container Locks and Padlocks

  1. Bulldog CT440
  2. Bulldog CT330
  3. Squire WS75 padlock
  4. ABUS 215/100 Container Lock

Overview of Container Locks

There are different types of containers with a few different ways of locking them. There are storage containers and shipping containers. Most commonly the containers we secure are old shipping containers that are used for storage. These have the handle / bar locking system and rarely have the central shrouded lock. The storage containers are more often custom built to varying sizes and door types but often use the central shrouded locking which takes a square-bodied padlock.

Below are the best ways of securely locking the containers by either making use of the current locking parts or fitting a new secure lock to the doors.

Bulldog CT440

The Bulldog CT440 is the strongest additional container lock I have seen on the market. The unit weighs 8.3 kg and as shown in the video above a serious looking container lock that should dissuade the casual thief. The lock secures between the 2 locking bars on the front of the container so even if the padlocks are cut off the doors are still secured together.

Supplied with the Bulldog high security locking pin which comes with 2 keys and ball bearing locking this unit is much more secure than most on the market.

We would recommend using this Bulldog CT440 container lock in conjunction with other locking methods on the container doors as this will give you the best security. Containers tend to be located in isolated areas so it is important to make the doors as secure as possible to prevent burglars from having an easy target.



Bulldog CT330


The Bulldog CT330 is the smaller version of the Bulldog CT440. It works in a similar way by hooking around the locking bars on the container and prevents the doors from being opened.

In the video above you can see the unit and the locking action. You can clearly see the difference in sizes from the larger CT440 compared to the CT330.

The Bulldog CT330 comes with 2 keys and operates a pullout pin locking system that releases the 2 halves of the lock and you can then slide them apart.

These are available keyed differ so 2 x different keys for each lock or keyed alike so multiple units will all be keyed alike.

Squire WS75 Padlock

The Squire WS75 padlock has been specially designed to fit nearly all containers either locking the handles in place or locking under the protective shroud in the center of the container. There will be the very rare container they will not fit but with this padlock, you can have all the padlocks on the same key so you have multiple locks on the same key.

These padlocks were mainly meant to be used under the shroud on the front of the containers as most square bodied shutter padlocks do not have the correct dimensions to easily fit under and lock through the eye lits.

The padlock has a CEN 4 rating, 12mm shackle thickness, 27mm horizontal clearance, and 14mm vertical clearance.


ABUS 215/100 Shipping Container lock


The ABUS 215/100 Shipping container lock has been designed to add a high security lock to the container in case there has not already been a shrouded lock installed in the center of the doors. The lock is a complete kit with the bolt through fixings to secure the unit through the door. The security rating of this lock is extremely high as it comes with the high security ABUS Granit Padlock – 37RK/70 padlock with the 100mm long shackle.

Its not the easiest to install as you will need the specialist drill bits to cut through the container door but if you have the parts it will give you a fantastically secure lock on your container.

The padlocks can be interchanged and we can get the ABUS range keyed differ or keyed alike if required.