The General Library (BGUM) on the Gualtar Campus and the University of Minho Library on the Azurém Campus (BPG) (more information about BPG available at: https://www.usdb.uminho.pt/pt/Bibliotecas/bpg/) offer 45 and 48 lockers, respectively.
Online locker reservation requires users to have a valid registration and be in good standing with the UMinho libraries.
At the General Library (BGUM), reservations are for a maximum period of 15 hours, allowing study materials to be left overnight.
At the University of Minho Library on the Azurém Campus (BPG), reservations are for a maximum period of 8 hours, up to 30 minutes before the library closes.
You can find more information here.