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Understanding Package Weight Limits for International Shipping

May 18th, 2016

UnderstandingInternationalWeightLimits

You have a Priority Mail International® Small Flat Rate Priced Box ready to be shipped to the country of Antigua and Barbuda. It weighs 5 pounds, but you’re not seeing an option for Small Flat Rate Priced Boxes in the Stamps.com drop-down mailpiece menu. What’s going on? The answer: the maximum weight for a Priority Mail International Small Flat Rate Priced Box is 4 pounds, so your mailpiece weighs too much for this flat rate box.

When preparing international shipments, it’s important to remember that there are weight limits depending on which mail class and packaging you’re using.

For example, the maximum weight for a Priority Mail Express International® Flat Rate Envelope or Small Flat Rate Priced Box is 4 pounds, and 20 pounds for Medium and Large Flat Rate Priced Boxes.

First-Class Mail International® Letters are capped at 3.5 ounces while First-Class Mail International Large Envelopes/Flats, these cannot exceed 4 pounds.

Variations by Country: Availability of Services 
An important aspect to shipping internationally is knowing that services vary by country.

For example, if you’re using Priority Mail International to mail something to Bolivia, Cuba, the Falkland Islands or Ascension Island, you would only be able to use Priority Mail International Flat Rate Envelopes and Small Flat Rate Priced Boxes.

Want to ship using Priority Mail Express International Service? Do your homework, as this service is not available for more than 20 countries and dependencies, including Afghanistan, Iran, Greenland, Tuvalu, East Timor (Timor-Leste), and Suriname.

Variations by Country: Weight Limits for Non-Flat-Rate Mailpieces
The absolute maximum weight of all international packages is 70 pounds, but not all countries will accept this maximum weight. For example, 33 pounds is the maximum weight for a package going Priority Mail Express International to Taiwan, but it is 69 pounds for Nepal. Knowing that varying thresholds exist is an important step towards becoming a successful global shipper, and will help you determine what kinds of products you can ship to certain overseas markets.

These thresholds can also vary by mail class for the same country. For example, Bulgaria’s weight limit for Priority Mail Express International packages is 66 pounds, but 70 pounds for Priority Mail International packages.

Looking for a complete chart? You can find one here: http://pe.usps.com/text/imm/immpg.htm or look at individual country listings at: http://pe.usps.com/text/imm/ab_001.htm.

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