You can purchase suitable packing boxes for your storage or shipping needs from a variety of retailers, both in-store and online. Here are some common options:
U-Haul: U-Haul provides a comprehensive selection of packing supplies, which includes boxes designed for both shipping and storage purposes. To cater specifically to college students, they offer a convenient College Kit that can be ordered online and then picked up at your nearest U-Haul store.
FedEx: FedEx Office locations often have shipping and packing supplies available for purchase.
UPS: UPS Stores also offer various packing and shipping supplies, including boxes.
Office supply stores: office supply stores typically sell a variety of boxes suitable for packing and shipping.
When purchasing boxes, be sure to choose double-walled, heavy-duty boxes suitable for shipping if you plan to use them for that purpose. Check for an Edge Crush Test (ECT) rating of 42 or higher, which indicates the box’s strength.