It's just an old storage unit I use to keep stuff that doesn't fit in the van. If it's anywhere, it's in here.
|—Greg Universe, "Laser Light Cannon"|
U-Stor is a storage center where people can rent a storage unit to store their belongings in.
Greg used the unit to store a large number of items that didn't fit in his van. These items included a T-Shirt Cannon, a painting of a cat, a lamp, stacks of newspapers, a giant fish, a giant hat, some chess pieces, a boom box, a chair, a giant bottle, a lance, two mattresses, a drum, a fishing rod, an umbrella, a pool table, golf clubs, Li'l Butler VHS tapes, a T.V., a pet carrier, Rose's Laser Light Cannon, a picture of him and Rose, and more.
Steven, Greg, and Amethyst tried to clean out the storage unit, but the latter two ended up watching Li'l Butler instead and became addicted to the show once again. Later, with the help of Pearl and Garnet, the entire unit is cleaned out, with most of the items transferred to Amethyst's Room.
In preparation for Sadie Killer and the Suspects' show Greg with the help of Garnet and Pearl were retrieving music equipment from his unit, with Steven coming to inform them that he needed Pearl for her past knowledge of Spinel. An unnamed restaurant or store seems to be located across of Greg's U-stor unit.
Steven sees Amethyst shapeshifted as Rose Quartz inside the U Stor during his flashback.
- The name is most likely a reference to the real-life moving/storage company, "U-Haul".
- The "Sumy" television in the storage unit is a reference to the Sony television.
- It is surrounded by the streets Waterman, Sussex, Chestnut, and Chesapeake.
- Greg's storage unit was full of pop-culture references and icons. See "Laser Light Cannon" for more details.
- The word "Stor" is a sensational spelling of "Store."