What Type of Lock Do You Need for a Storage Unit?
Sep 2, 2026 / Public Storage
You need a lock that is compatible with your storage unit’s door and locking mechanism. Depending on the unit, Public Storage uses disc locks, cylinder locks or electronic locks.
If you complete your Public Storage rental online or by phone, a compatible lock will be waiting inside the unit and a lock fee will be charged. If you rent in person, you can purchase the applicable lock at the property. You may also bring your own lock if it is the correct type for the unit.
Storage Lock Types at a Glance
| Lock type | How it works | What to confirm |
|---|---|---|
| Disc lock | Passes through the holes in a door latch | Shackle size and latch compatibility |
| Cylinder lock | Fits inside the unit door’s locking mechanism | Exact cylinder type required by the door |
| Electronic lock | Uses the Public Storage App and a compatible phone | Unit availability, phone compatibility and required permissions |
| Closed-shackle padlock | Covers more of the shackle than a standard padlock | Whether the unit latch accepts it |
| Standard padlock | Uses a U-shaped shackle | Whether the facility permits it and whether it fits the latch |
Lock types vary by property and unit. Confirm the required type before purchasing or bringing a lock.
Why Do You Need a Storage-Unit Lock?
A properly applied lock helps control access to your individual storage space. It is also a required part of the rental process, including when the unit is empty.
The lock works with the unit door and latch, so simply choosing a familiar padlock is not enough. The lock must have the appropriate shape and dimensions for that particular door.
No lock guarantees a particular outcome. A storage-unit lock also does not replace applicable insurance requirements, facility access procedures or appropriate storage practices.
Do not place money, jewelry, cremains, sensitive documents, belongings that cannot be replaced or items exceeding the permitted stored-value limit in a storage unit.
What Is a Disc Lock?
A disc lock has a round body and a short, curved shackle. The shackle passes through the aligned holes in the storage-unit door latch.
To use a compatible disc lock:
- Close the storage-unit door completely.
- Move the latch until its holes align.
- Unlock the disc lock and position it between the latch holes.
- Close the lock and remove the key.
- Gently check the door and latch before leaving.
Disc locks come in different dimensions. Confirm the shackle diameter and available latch space before bringing your own.
What Is a Cylinder Lock?
A cylinder lock fits directly into a locking mechanism built into the storage-unit door. Unlike a padlock, it does not hang from an external shackle.
To use a compatible cylinder lock:
- Close the door completely.
- Move the latch into the closed position.
- Unlock the cylinder while leaving the key inserted.
- Slide the cylinder fully into the designated opening.
- Turn and remove the key.
- Check that the cylinder and latch remain in place.
Cylinder locks are not interchangeable with every storage-unit door. Use the lock provided for the unit or confirm the exact specifications before purchasing one elsewhere.
What Is an Electronic Storage Lock?
Electronic locks, also called eLocks, are available with some Public Storage units. Customers use the Public Storage App and a compatible phone to operate the lock.
Using an eLock may require:
- The Public Storage App
- A compatible smartphone
- Bluetooth
- Location permissions
- Access to the applicable Public Storage account
Customers still need to close the unit door and move the latch into position manually. Follow the instructions in the app and confirm that the unit is locked before leaving.
Electronic-lock availability varies by property and unit. App access may also depend on the phone’s settings and the customer’s account status.
Can You Use a Closed-Shackle Padlock?
A closed-shackle padlock may work with some storage-unit latches, but it is not compatible with every door.
The lock body covers more of the shackle than a traditional padlock. However, the shape may prevent it from fitting through or around certain storage-unit latches.
Before buying one, confirm:
- The latch opening
- The shackle diameter
- The available clearance
- The facility’s lock requirements
Do not force a lock onto a latch that was not designed for it.
Can You Use a Standard Padlock?
A standard padlock may fit some storage-unit doors, but it is not universally accepted. Public Storage units may require a disc lock, cylinder lock or electronic lock instead.
Check the specific unit’s locking mechanism before purchasing a standard padlock. If the shackle is too thick, too long or shaped incorrectly, the door may not close properly.
How Do You Choose the Right Storage Lock?
The right lock is the one designed to work with your specific storage-unit door. Start by confirming the lock type with the property team or reviewing the instructions provided with your rental.
Confirm Compatibility
Check whether the unit uses a disc lock, cylinder lock or electronic lock. If bringing your own lock, verify its dimensions and specifications before move-in.
Consider the Unit Location
An exterior unit’s lock may be exposed to changing weather conditions. Review the lock manufacturer’s instructions and intended environment before purchasing.
Decide How You Want to Access the Lock
A keyed lock requires you to keep track of the key. An electronic lock requires a compatible phone and applicable app permissions. Choose an access method that fits your routine and the unit’s requirements.
Review the Manufacturer’s Instructions
Follow the lock manufacturer’s instructions for use, care and storage. Avoid adding lubricants or cleaners unless they are recommended for that particular lock.
Plan for a Lost Key or Phone Issue
If you use a keyed lock, keep any duplicate key in a separate location outside the storage unit. Do not label the key with the facility address or unit number.
For an electronic lock, keep your phone charged and maintain access to your Public Storage account.
Is a Lock Provided at Public Storage?
If you complete your rental online or by phone, a compatible lock will be waiting inside your unit. A lock fee is charged as part of the rental.
If you rent at the property, you can purchase the applicable lock during the rental process.
The provided lock may be a disc lock, cylinder lock or electronic lock, depending on the unit. Follow the instructions for the specific lock and door.
Review the complete Public Storage lock information before move-in.
Can You Bring Your Own Lock to Public Storage?
Yes, provided the lock is compatible with the unit.
If an unused Public Storage lock was placed inside your unit, you may return it in its original condition within 30 days of move-in for a refund. Return it to a property manager or place it in the designated lock-return box.
Review the Public Storage lock-return instructions for current requirements.
How Do You Check That a Storage Unit Is Locked?
Before leaving the property:
- Close the unit door completely.
- Make sure the bottom of a roll-up door is fully lowered.
- Align the latch.
- Apply the compatible lock according to its instructions.
- Remove the key, if applicable.
- Gently check the door and latch.
- Take the key or phone with you.
Do not assume the unit is locked simply because the lock is attached. The door and latch must also be completely closed.
View the illustrated Public Storage lock instructions for disc, cylinder and electronic locks.
What Should You Do If You Lose Your Storage Lock Key?
If you lose the key to your Public Storage lock, contact Public Storage to schedule a lock cut. Do not attempt to cut or remove the lock yourself at the property.
You can contact the property team, use the online chat or call customer service for assistance. Review the current lost-key instructions for next steps.
Does a Storage Lock Replace Insurance?
No. A lock does not replace applicable insurance requirements.
Review your rental agreement and insurance terms before storing belongings. You should also maintain an inventory and keep receipts, photographs or other records outside the storage unit when appropriate.
Access systems, cameras, lighting and locks do not guarantee a particular outcome. Confirm which features are available at the specific property and consider them alongside your own storage practices.
Frequently Asked Questions
Do you need a lock for a storage unit?
Yes. Your storage unit must be locked, including when it is empty.
What type of lock does Public Storage use?
Depending on the unit, Public Storage uses disc locks, cylinder locks or electronic locks.
Does Public Storage provide a lock?
A compatible, charged lock will be waiting inside the unit when the rental is completed online or by phone. Customers renting in person can purchase the applicable lock at the property.
Can you bring your own storage lock?
Yes, if it is the correct type and size for the unit. Confirm compatibility before move-in.
Can you return the Public Storage lock?
An unused lock can be returned in its original condition within 30 days of move-in for a refund.
Are combination locks allowed?
It depends on the unit’s locking mechanism and the facility’s requirements. Confirm that the combination lock is compatible before using it.
Are electronic locks available at every Public Storage facility?
No. Electronic-lock availability varies by property and unit.
Does an electronic lock close automatically?
Customers still need to close the door and move the latch into position manually. Follow the in-app instructions and confirm that the unit is locked.
What happens if you lose your storage-unit key?
Contact Public Storage to schedule a lock cut. Do not try to remove the lock yourself at the property.
Is one type of storage lock always better than another?
No single lock is appropriate for every door. Compatibility, correct installation and the facility’s requirements should guide your decision.
Find a Storage Unit Near You
Public Storage serves more than two million customers at more than 4,600 facilities nationwide. Available unit doors, lock types and electronic-lock features vary by location.
Find Public Storage near you and review the unit details before completing your rental.
