The USPS Shipping Module is an add-on module for the Concrete5 eCommerce addon that allows you to retrieve shipping rates and service information for USPS shipping worldwide. The module supports the following features:

    * support for most USPS shipping services
    * support for most USPS recognized packaging types
    * shipping from one location
    * shipping to select countries
    * shipping based on shipment weight or package size
    * testing mode

When shipping by package size, the USPS Shipping Module allows you enter the size of your largest package and will then attempt to pack items into the fewest number of boxes to compute the lowest shipping price. The package fit algorithm uses a conservative method for estimating the number and sizes of items that will fit in a box.  Space is allowed in each box for package materials.

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