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What Is the Best Padlock for a Storage Unit? Types, Tips, Top Picks & Prices

 Thinking of reserving a storage unit? Then you’ll need a reliable padlock. It’s your first line of defence against theft and a simple way to keep your belongings secure.

While most storage facilities are safe, opportunistic theft can still happen, especially at sites with limited supervision. That’s why choosing the best padlock for a storage unit is not just a precaution but a necessity.

In this guide, we’ll explore the different types of locks available, what features to prioritise, and how to choose one that offers solid protection without costing a fortune.

Why Do Padlocks Matter for Storage Units?

Padlocks are the first line of defence for your storage unit, acting as a physical barrier to stop unauthorised access. A strong, visible padlock also helps deter opportunistic thieves from even trying to break in.

Furthermore, insurance companies require a specific type of lock on storage units in order to cover any losses or damages, making padlocks absolutely crucial for protecting your possessions.

Henfield Storage’s facilities are equipped with 24/7 CCTV, controlled access, and staff on-site. However, it’s up to you to ensure that your unit is properly secured with a high-quality padlock. And that’s what we’re here to help you with.

Types of Padlocks for Storage Units

Not all padlocks are created equal. Some get weathered and beaten quickly, while others can withstand the elements and daily wear and tear.

Here are the most common types of padlocks for storage units:

1. Traditional Padlocks, or Keyed Padlocks

ABUS Key Weatherproof Brass, Stainless Steel Weatherproof Padlock, Keyed Alike, 5mm Shackle, 30mm Body

These are your regular padlocks that use a key to lock and unlock. They come in different sizes, with some having longer shackles than others. While they’re strong and cut-resistant due to their hardened steel or brass, they can succumb to rust and can be picked by skilled thieves.

2. Combination Padlocks

Brass Combination Padlock 40mm

Combination padlocks can be unlocked using a set number code, usually entered via a dial or rotating wheels.

These padlocks are convenient, but less secure than keyed or disc locks. Cheaper models can also be cracked through trial and error, so it’s a good idea to change your code regularly if you go this route.

3. Electronic Padlocks

Master Lock 6400EURLJENT Bluetooth Outdoor Padlock

Electronic padlocks use advanced technology such as biometric sensors, Bluetooth connectivity, or digital keypads to unlock. These types of padlocks offer convenience and added security features, such as remote access control and activity monitoring.

Some models require batteries or charging to function, and can be more expensive than traditional locks.

4. Disc Locks

 

 

2 Pack 70mm Disc Locks for Storage Unit, Outdoor Waterproof Stainless Steel Disc Lock for Sheds,Gate and Fence, Heavy Duty Discus Keyed Pad Lock : Amazon.co.uk: DIY & Tools

As far as storage unit security goes, disc locks are considered the gold standard. These padlocks are circular and feature a shackle that cannot be easily cut with bolt cutters.

Built from stainless steel, disc locks are both durable and weather-resistant – ideal for outdoor units. They’re more secure than standard padlocks but still relatively affordable, offering excellent value for anyone storing valuable or long-term items.

5. Shrouded Padlocks

 

Ace 44mm / 50mm Closed Shackle PADLOCK Shrouded Hardened Steel Shackle | eBay UK

Shrouded padlocks are a top choice when security is paramount. These heavier locks feature a protective metal casing that shields most of the shackle, making it extremely difficult for bolt cutters or crowbars to reach their target.

This design significantly reduces the risk of forced entry, making shrouded padlocks ideal for high-value storage, outdoor units, or business use where enhanced protection is a must.

6. Keyed Alike Padlocks

Force 4 Keyed Alike Padlocks

As the name suggests, keyed alike padlocks are locks that can all be opened with the same key. This allows you to secure multiple units or storage areas without juggling a different key for each one.

They’re especially useful for businesses or storage facilities managing several units, making access quicker and more efficient.

7. Interchangeable Core Padlocks

elox SFIC IC Core Cylinder Fits Stanley, Dorma Kaba, Arrows, Best, Falcon Standard, Best A Keyway,7 pins, without housing, core and keys only : Amazon.co.uk: DIY & Tools

These padlocks are designed so the core (the part that controls the locking mechanism) can be swapped out without replacing the entire lock. This is especially useful for businesses that need to change keys regularly due to staff turnover or lost keys.

Overall, interchangeable core padlocks are a cost-effective solution for maintaining security across multiple units without replacing all the padlocks.

What to Look For in a Storage Lock

Before spending big on a flashy lock, it’s worth knowing what really matters. It’s not all about appearances — a good storage lock comes down to a few key features.

Here’s what to consider when choosing the right one for your unit:

1. Material

Your padlock material plays an important role in its durability and resistance to tampering. Look for locks made from hardened steel or boron alloy, as these materials offer maximum strength against cutting tools and saws.

2. Locking Mechanism

There are various types of locking mechanisms available in storage locks, each with their own level of security. Some common options include key-based, combination, and electronic locks. Choose one you’re comfortable using, whether a traditional key, a number code, or something more advanced like fingerprint access.

3. Shackle Design

A padlock’s shackle is the U-shaped part that connects the lock body to its base. Some shackle designs, such as double ball or hardened steel, are more resistant to cutting and picking attempts.

4. Weather Resistance

For outdoor storage units in the UK’s coastal areas, opt for a weather-resistant lock. This allows the lock to withstand rain, snow, and temperature changes without rusting or becoming damaged.

Look for locks with rubberized or plastic components that can handle exposure to moisture, as well as coatings such as zinc or chrome plating for added protection against corrosion.

5. Compatibility

Not every padlock is compatible with every storage unit latch. Some units have narrow latch holes or unique fittings that won’t accommodate bulkier locks like disc or shrouded padlocks. The size and shape of the shackle can affect how securely the lock sits.

Before buying, check with your storage facility or inspect the unit latch to ensure your chosen lock will fit securely.

6. Convenience vs. Security

If you’re managing multiple units or sharing access with others, consider keyed alike or combination locks for convenience. Just make sure you’re not sacrificing too much security for ease of use.

Top Padlocks for Storage Units

 

1. ABUS Laminated Padlocks (Eterna Series)

 

ABU4145C - 41/45mm ETERNA Laminated Padlock Carded

Durable and cost-effective, this abud laminated padlock offers solid protection with its hardened steel shackle and double-bolted design. Made in Germany, the Eterna Series resists cutting and sawing, making it a strong choice for general household or business use inside a secure facility.

Best for: Indoor storage units (low to medium security)
From: £13.26

2. ABUS Expedition Weatherproof Padlock

 

This padlock is ideal for outdoor storage units with its stainless steel shackle and protective casing. It is also weatherproof, making it suitable for use in areas with harsh outdoor conditions.

Best for: Outdoor storage units
From: £14.80

3. ABUS Granit Plus Closed Shackle Padlock

 

One of the most secure padlocks on the market. The closed shackle design offers excellent resistance to bolt cutters and prying. The ABUS Plus cylinder makes it very difficult to pick.

Best for: High-value or commercial storage units
From: £131.62

4. Submariner Marine Grade Padlock

 

ABUS Submariner 83WPIB/53 Marine Grade Padlock (10 pack)

Fully rustproof and built for extreme environments like North Sea wind farms. If you’re in a coastal area of the UK and need long-term outdoor storage, this padlock is a solid choice.

Best for: Coastal/outdoor units with high moisture exposure
From: £62.45

5. Squire Heavy Duty Combination Padlock

 

Squire Heavy Duty Padlock (CP50) - Toughest Steel Shackle - 4 Wheel Combination Padlock - Alloy Steel for Corrosion Resistance - Weatherproof Lock for Home, School & Garage (Blue, 50 mm) : Amazon.co.uk: Grocery

A solid keyless option for shared or frequent access. Built from die-cast zinc with a resettable combination. While not as secure as keyed or disc locks, it’s reliable for general use in indoor units.

Best for: Indoor shared-use storage or frequent access
From: £20.25

Frequently Asked Questions

1. Do I need to bring my own padlock for a storage unit?

Yes. At Henfield Storage, it’s your responsibility to secure your unit with a padlock. You can bring your own, or purchase a heavy-duty padlock directly from our facility.

2. What type of padlock is best for a storage unit?

Disc locks are widely recommended for storage units. Their round shape and shielded shackle make them difficult to cut, and their keyhole is difficult to pick.

3. Are combination locks secure enough?

Combination locks offer convenience but typically aren’t as secure as disc or keyed padlocks. They’re best for short-term or low-value storage.

4. Which padlock should I use for outdoor storage units?

Choose a weatherproof or marine-grade padlock, like the Submariner or ABUS Expeditionm especially if your unit is exposed to the elements or located in a coastal area.

5. Can I use the same key for multiple locks?

Yes. Keyed-alike padlocks let you use one key for several locks. If you’re planning to store in more than one of our storage locations, this is a convenient option. However, if you lose the key, it will work for all of the locks.

6. How do I prevent my padlock from being cut?

Use a high-security padlock with a hardened steel shackle, closed or shrouded design, and anti-pick mechanisms. These features make it much harder for bolt cutters or saws to break through.

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