Are USPS shipping boxes free?
They’re always free, no matter if you get them at your local Post Office or on USPS.com. This includes Priority Mail Flat Rate and Priority Mail Express boxes and envelopes, as well.
What size boxes are available at USPS?
USPS Priority Mail Flat Rate Options
| Type | Size* | EasyPost Predefined Package |
|---|---|---|
| Legal Envelope | 15″ x 9 ½” | FlatRateLegalEnvelope |
| Small Box | 8 11⁄16″ x 5 7⁄16″ x 1 ¾” | SmallFlatRateBox |
| Medium Box | 11 ¼” x 8 ¾” x 6″ or 14″ x 12″ x 3 ½” | MediumFlatRateBox |
| Large Box | 12″ x 12 ¼” x 6″ | LargeFlatRateBox |
Can I ship USPS with my own box?
Yes, so long as you’re not shipping via Flat Rate. If you’re shipping Priority Mail Commercial from home, you can use any box you want. Just be sure to remove any old postal barcodes or labels. By using PitneyShip, you can easily weigh and measure your package and print the appropriate Priority Mail postage.
Does USPS charge by box size or weight?
For First-Class Mail, shape and weight will determine the price. For Priority Mail, the price is a combination of weight, size, and how far the mailpiece is traveling. Priority Mail pieces that exceed one cubic foot, are subject to “dimensional weight pricing”.
Is it cheaper to ship a large box or two smaller boxes?
If possible, it’s often better to ship two smaller boxes rather than one large, heavy box. This will spread the weight of your cargo over two smaller parcels, which can significantly reduce your shipping costs especially if the large box would qualify for large or oversized pricing.
Can I send any type of box to ship USPS?
Step 1: Pick Your Box Remember, size and weight determine price: Packages must not weigh more than 70 lbs. In most cases, packages may not be more than 108 inches in total length and girth. (130 inches for USPS Retail Ground®.)