Frequently Asked Questions (FAQ):
Yes. Don't worry. If your order is too large to fit in your box, the Post Office will just put a little note in the box for you to pick up your order at the counter during regular hours.
This is not the case if your order needs to be shipped by a carrier other than the United States Postal Service (USPS). Other carriers (UPS, FedEx, DHL, e.g.) require a street address for delivery.