The largest size of the package offered by USPS is 130 inches of combined length and girth. If you need to send something smaller than these dimensions, choose the envelope packing. The smallest box has a minimum length of 6 inches and a minimum height of 4 inches. USPS Priority Mail Flat Rate Products and Their Size Limitationsīoxes come in three sizes: small, medium, and large. So, study the USPS guidelines thoroughly to choose the right type of package.īy submitting this form, I confirm that I have read and understood Inkit's Privacy Policy. Sometimes it turns out to be much more than the actual weight of the parcel. When measuring the irregularly-shaped products, imagine them packed into a rectangle box and measure their sides.ĭimensional weight, or dim weight, also matters. measure the height of the package and also multiply it by 2,.measure the width of the package and multiply it by 2,.To calculate the girth of your parcel, you should: Girth is the distance around the thickest part of the package. When it comes to measurements for mailing, there is an additional term here: girth. height - the smallest side of the package.Ī tip for recording the measurements: round the value of all measurements to the nearest larger integral number of inches.width - the second-longest side of the package,.length - the longest side of the package,.One of the main factors of the price is the type of package and its size.īefore we move onto the standard packages offered by USPS, let's determine the basic measurements to consider: The United States Postal Service (USPS) sets the package requirements and the price. Measure Correctly: Package Sizes and Dimensions Get a step-by-step guide to selecting the right package for your business and e-commerce shipments in this article. As nobody wants the ordered products to be expired, broken, or delivered past the holiday, the right package is essential. If the package dimensions don't fit into standard USPS box sizes, you will pay more for mailing service, and it will take more business days to deliver the package. Adhering them to the mailing services standards will ensure the timely delivery and predictable cost of the shipment. Start planning the shipments from your store or delivering presents to your customers by determining the packages’ weights and dimensions: length, width, and height. When planning shipments, it’s essential to select a proper package size first, especially for business and e-commerce shipments, which are usually on a larger scale.

Size of large flat rate box