curve

The 5 Best Locks For Storage Units

February 15, 2025


Are you looking for the best lock for storage units to ensure the safety of your belongings? No worries. There are many locks available, and you can choose the best one by checking their features with your requirements. 

 

In this article, we have mentioned the best lock for storage units in 2025, along with their cost, factors, and other information. So read the article carefully, and choose your best match–

What Are The Best Storage Unit Locks?

Compare Storage Unit Locks

Lock Cost Multiple sizes Strong shrouded shackle* Details
ABUS 24/70  $28.57 Available  Yes Get A Quote 
ABUS 37/80 $125.99 No Yes Get A Quote
Brinks $39.99 Available Yes Get A Quote
Medeco $100 Available Yes Get A Quote
Master Lock M50X $19.49 No Yes Get A Quote

What To Look For In a Storage Unit Lock?

 

What is a Disc Lock?

The disc lock is circle-shaped, unlike the standard padlock, which is rectangular. It is very strong and tough to cut.

ABUS 24/70 Disc Padlock: Best Overall

The ABUS Disc Padlock is a high-quality and cost-effective option. It is priced at around $27.89 and has an anti-cut plate. Even ABUS 24/70 can prevent drilling and lock picking. However, it is not really suitable for outdoor use as it can’t withstand harsh weather. But it is best among others based on cost.

Pros Cons
  • Anti-cut plate
  • Cost-effective
  • High-rated manufacturer
  • Doesn’t work well outdoors

What Makes ABUS 24/70 Apart?

ABUS 24/70 Disc Lock Is Strong

This disc lock is strong compared to its price. As it comes with a circular shape, thieves find it hard to cut. No other makes disc locks like ABUS. It has an anti-cut system and is resistant to picking.

ABUS 24/70 Disc Lock Is Affordable

This lock is affordable, and the price is $27.89 without compromising quality. And it is tough to find the same quality at this price from other companies. Some locks can be priced two and three times higher than the price.

ABUS 24/70 Technical Specs

Dimensions Shackle Diameter Lock type Material
‎3.4 in. x 2.9 in. x 1.3 in .406 in. Key lock Stainless steel

ABUS 37/80 Granit Padlock: Best For Strength

This ABUS 37/80 is made from heavy steel. And its design is rekeyable and resists drilling, cutting, picking, and more. As it has an anti-corrosion coating, it can be used in outdoor and indoor storage. The best part of this lock is it has light to find the keyhole at night. Therefore, it required more price for this extra security around $127.39.

Pros Cons 
  • It can be used indoors and outdoors
  • Hardened-steel cylinder
  • High-quality key with light
  • High price

ABUS 37/80 Granit Features

ABUS 37/80 Granit Gets Stellar Reviews

This lock got several positive customer reviews. And some negative reviews it has for reseller and shipping packaging, not the lock. But the ABUS padlock is a little expensive.

ABUS 37/80 Granit For Outdoors

The ABUS 37/80 Granit comes with an anti-corrosion coating to save from bad weather. This is the only lock that can be used for outdoor and indoor storage units. You can also use it for moving containers.

ABUS 37/80 Granit And Thieves

As much as consumers like this lock, thieves hate it that much as well. This lock is made from hardened steel and is hard to cut, drill, and more. However, any lock can be breakable; it will be tough to break. 

ABUS 37/80 Granit Technical Specs

Dimensions Shackle Diameter Lock type Material
3.09 in. x 1.53 in. x 3.06 in. .547 in. Key lock Aluminum, brass alloy steel

What About Rental Truck Locks?

We suggest using a standard padlock for rental trucks. While shrouded padlocks offer more security for storage units, they typically don’t work with rental truck companies like U-Haul.

Brinks: Best For Disc Locks

Bricks lock is the most secure one for storage units. This lock comes with two options: combination and key. With the Bricks combination lock, you can set a digit number for your storage, which enhances security. As this lock comes with a larger cover on the shackle, it is harder to cut. Also, it can corrode with its stainless steel body. Therefore, you can use it for outdoor and indoor storage.

 

Pros Cons 
  • Weatherproof stainless steel design
  • Comes with key and combination disc locks 
  • Extended shroud for extra security
  • Often, locks can get stuck

Medeco: Best For Padlocks

Even the best padlocks are usually easier to cut than disc locks, but Medeco is an exception. Medeco 4 System Series Padlocks have a shrouded boron alloy steel shackle that resists cutting, pulling, and tampering.

 

The M4 cylinder adds extra protection with hardened steel inserts. They also come in a weather-resistant version. These padlocks are key-operated, with a special design that stops unauthorised key copying and 3D printing.

 

Pros Cons
  • Weather-resistant options for indoor and outdoor
  • Pick-proof design 
  • Made from alloy steel shackle and stainless steel
  • Little expensive

Master Lock M50XD Disc Padlock: Cost-Effective

This lock is not constructed with high quality. But if you want a budget-friendly option, then it is your best bet. Besides, it can resist picking and drilling. Again, The master lock can be used in the storage unit door. However, it can’t hold best in harsh weather.

Pros Cons
  • Decent for the price
  • Prevents drilling
  • Minimal shrouding

Master Lock Common Factors 

Master Lock Drilling-Resistant

This is the best example of an affordable option when you can’t find any better lock. It is not the best at offering security. But it can resist drilling, which is really beneficial.

Master Lock M50XD Has Good Quality For The Price

 

This lock does not come with most of the best quality of the locks. But it is impossible to find the best lock at this price. If you have a tight budget then choose this over expensive ones.

Master Lock M50XD Technical Specs

Dimensions Shackle Diameter Lock type Material
‎6.2 in. x 5.88 in. x 1.5 in. .436 in. Key lock Stainless and alloy steel

Recap

So, are you still confused about which lock to choose? Well, if you want the best, select ABUS 24/70 disc padlock. This is affordable and prevents cutting and picking. In contrast, the ABUS 37/80 Granit padlock is best for security purposes. Hence, you can choose which matches your needs. 

FAQs Of The best locks for storage units

Which company makes the best disc padlock?

Abus is widely recognized as the leading manufacturer of disc padlocks, known for their exceptional quality and security features. Their Diskus series offers various models, including the robust 24/70. This comes with advanced anti-cut technology, making it a top choice for securing valuable items.

What is a closed-shackle padlock?

A closed shackle padlock or shrouded shackle padlock features a design that minimizes the exposure of its shackle.

 

What size of lock do I need for my self-storage unit?

For self-storage units, a heavy-duty padlock with a shackle diameter of at least 7/16 inches is recommended. Look for locks with a hardened steel body and weather-resistant features.

What is the best lock for an outdoor storage unit?

For outdoor storage units, disc locks and heavy-duty padlocks are recommended due to their high resistance to tampering and cutting. The ABUS 37/80 Disc Lock and Master Lock Magnum are excellent choices. 

Do I need a lock for my moving container?

Yes, it’s highly recommended to use a lock for your moving container. A lock enhances security, protecting your belongings from theft. Choose a sturdy, weather-resistant lock for safety and peace of mind throughout your move.

Can I put a traditional padlock on my storage locker?

Yes, you can use a traditional padlock on your storage locker, but it’s essential to check with the facility’s regulations. Many storage units recommend specific lock types for security.

What company makes the Diskus padlock?

The Diskus padlock is manufactured by ABUS, a company known for its high-security locks. The original Diskus design features a unique disc shape that enhances security and resistance to tampering.