For the contents of a studio or 1-bedroom apartment, a medium-sized self storage unit, such as a 10x10 or 10x15 unit, is typically recommended. These units offer enough space to store furniture, appliances, boxes, and other belongings from a small living space. However, if you have additional items or larger furniture pieces, you might want to consider a larger unit, such as a 10x20 or even a 10x30 unit.