Measuring Packages - Shipment Dimensions | Overview

Shipping dimensions are only used if you are sending a shipment in a custom box or envelope rather than in a carrier's flat-rate packaging. The shipment dimensions will affect the cost of the shipment, so accurate measurements are important.

What do I need to know about shipment dimensions?

Package dimensions may be used to calculate the dimensional rate, dimensional weight, or girth. Depending on the selected service, any of these may affect the shipment cost.

  • Dimensional rates are discounted rates available for very small packages being shipped via USPS Priority Mail. ShippingEasy subscribers can access dimensional rates via Flat Rate Green.
  • Dimensional weight, also called DIM weight, is a surcharge assessed by many carriers on very large, but relatively lightweight packages. Learn how DIM weight affects rates.
  • Girth is a special dimensional measurement, equal to (2 x width) + (2 x height). Many shipping services have maximum girth requirements.measuring_girth_image.png

When dimensions are provided, ShippingEasy will automatically use your dimensions to determine the best, most accurate rate. You will also be alerted to any service restrictions resulting from very large girth. As such, it is important to enter accurate dimensions for each shipment.

 

How do I measure package dimensions?

ShippingEasy recommends entering package weight and dimensions for every shipment.

  1. Set your package with the right side up.
  2. Place the measuring tool (ruler or measuring tap) against each edge to find the dimensions.
    • Length (L): longest horizontal edge
    • Width (W): shortest horizontal edge
    • Height (H): vertical edgepackage_dimensions_.png
  3. Record each measurement and round down to the nearest 0.25 inch.
  4. Within your shipping application, locate the Dimension field.  Enter the L (length), W (width), and H (height). Be sure to 'update' the dimensions to get an updated postage rate.

If you use this package type often, find out how to save your package dimensions to ShippingEasy for quick recall.

For additional information about measuring packages, check out more tips from shipping carriers.

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