This osCommerce add-on is a quick way to add USPS Priority Mail Flat Rate Shipping to your store without dealing with connecting to the USPS web API.  This will potentially save you and your customers some money as the USPS Flat Rate Shipping Boxes are FREE delivered to your home by the USPS and to ship they are the same cost regardless of the weight (no weight limit).  Also, you can buy the postage
online and print it at home and even schedule the USPS to pick it up at your home online all for FREE, meaning you never have to leave your home to ship your products saving time, gas, frustration, etc...

This module will display USPS flat rate shipping quotes for 11 x 8.5 x 5.5 packages or 12 x 12 x 5.5 packages to be shipped domestically or internationally, dependent upon the min weight of each package as determined by the store owner in the admin. If the package weight of EACH package is less than the min weight of the 11 x 8.5 x 5.5 package chosen in the admin, the module is disabled on the checkout shipping page.

If the package weight of EACH package is greater than or equal to the min weight of the 11 x 8.5 x 5.5 package chosen in the admin and less than the min weight of the 12 x 12 x 5.5 package chosen in the admin, each package is quoted at the 11 x 8.5 x 5.5 rate.  If the package weight of EACH package is greater than or equal to the min weight of the 12 x 12 x 5.5 package chosen in the admin, each package is quoted at the 12 x 12 x 5.5 rate. If the package weight is greater than or equal to the max weight of the 12 x 12 x 5.5 package chosen in the admin, the module is disabled on the checkout shipping page.  A handling charge may also be added by the store owner in the admin. You may optionally choose to display the package weight.