
We’ve added a new option to our forwarding service that enables you to forward parcels and letters to Royal Mail Parcel Lockers. At UK Postbox we believe in modern, flexible and secure solutions to give you complete control over your parcels. Users can now forward to over 1,500 lockers installed by Royal Mail across the UK.
Launched in 2024 and gaining momentum throughout 2025, the Royal Mail Parcel Lockers were launched to meet growing demand. The rise and rise of eCommerce and the demand for convenient 24/7 mailing options has seen parcel lockers increase rapidly across the UK and Europe.
Significantly, parcel lockers offer a more secure, contactless, and fraud-resistant delivery method for sellers who want to protect their business and reduce losses.
As part of Royal Mail’s Local Collect availability, the UK Postbox shipping option for locker collection is Tracked only.
Royal Mail is continuously expanding its locker network, so we will keep users updated on further features in our platform.
Royal Mail has two types of locker with different maximum parcel sizes:
Grey lockers
Width 34cm x Height 61cm x Depth 58cm
Red lockers
Width 42cm x Height 43cm x Depth 66cm

When collecting your UK Postbox forwarded item from a Royal Mail Parcel Locker, you will need to input your PIN code or scan your QR code using the terminal.
Hints and tips when collecting your item:
It's easy to get set up. We provide a simple mail forwarding service. You'll have complete control over your received and forwarded letters and parcels. Visit our dedicated page for more information.
1. Login to your UK Postbox account and select an item
2. Select 'Forward' and you will be presented with two forwarding options (Address or Lockers)
3. Choose Royal Mail Parcel Lockers and select your locker location
4. The item can be collected at the locker using the PIN at the locker to collect the item
When collecting your UK Postbox forwarded item from a Royal Mail Parcel Locker, you will need to input your PIN code or scan your QR code using the terminal.
The red Royal Mail Parcel Lockers have a maximum size of Width 42cm x Height 43cm x Depth 66cm. However, the grey lockers have a maximum size of Width 34cm x Height 61cm x Depth 58cm.
Yes, any item, letters or parcels, can be sent to the Royal Mail Parcel Locker as long as it is sent using the Royal Mail Tracked Postage Option and is within the locker size restrictions.
Wait for notification from Royal Mail. In the event that the locker you forward your item to is full, delivery will be re-attempted and you will be notified by Royal Mail when it will reattempt delivery and then you will be notified again when it has arrived.