The Cheapest Ways to Ship With USPS®

A few simple and basic rules of thumb for knowing about the most affordable ways to transport.

A few simple and basic rules of thumb for knowing about the most affordable ways to transport. If your parcel weighs:

  • 15.9 ounces or lower than that, then utilizing your parceling with the high-quality package would be the most affordable, always.
  • More than 1lb, but it is compatible with envelopes or Flat Rate boxes. These are the most affordable options.  
  • You can’t keep more than 1lb and into those; using smaller boxes is most affordable. In this way, you can qualify for the Priority Mail Cubic.
  • Medium and Large boxes of Flat Rate will be a good option if the weight is over 20lbs. However, Rate Boxes that are regional may not be a great choice.

An advantage of Priority Mail Cubic is that you will be able to utilize your own parceling.

Related: Compare USPS Priority Mail to Priority Mail Express


However, USPS provides complimentary boxes that you can use along with Priority Mail Cubic:

Priority Mail Box -  

  • 1095 | Cubic Tier no. 4 | 12.5" x 3.125 x 15.375" (OD)
  • Shoe Box | Cubic Tier no. 4 | 7-3/8" x 5-1/4" x 14-7/8" (OD)
  • 1092 | Cubic Tier no. 3 | 12.25" x 2.875" x 13.6875" (OD)
  • 1097 | Cubic Tier no. 3 | 11.625" x 2.5" x 13.4375" (OD)
  • 4 | Cubic Tier no. 2 | 7-1/4" x 7-1/4" x 6-1/2" (OD)
  • 1096L | Cubic Tier no. 1 | 9-7/16" x 6-7/16" x 2-3/16" (OD)

Learn more: How to Get Free Shipping Supplies from USPS, UPS, FedEx, and DHL