In case you order them online, you get a free delivery to your address too. You can get these boxes without any charges from USPS post offices near you or you can also order them online. The maximum allowed weight per box is 70 lbs. The commercial prices for the same starts at $6.55. The flat rate boxes for this service starts at $6.70 at the post offices. It usually delivers packages and envelopes in 1-3 days. Whereas, Priority Mail is a standard delivery service by USPS.

Flat rate for this service starts at $24.70 with 3 box types meant for different types of items.

The Express service is available to most US addresses with a few exceptions. Priority Mail Express is a guaranteed delivery service which offers overnight scheduled delivery by 10:30 am. Priority Mail Express & Priority Mail Flat Rateįlat rate boxes are available with both Priority Mail Express and Priority Mail services from USPS. Shipping Plugin with USPS Postage for WooCommerce.EasyPost Shipping Method Plugin for WooCommerce.WooCommerce USPS Shipping Plugin with Print Label.USPS Flat Rate Boxes with WooCommerce Shipping Plugins.EasyPost vs - Priority Mail® Flat Rate Box Charges.Priority Mail Express & Priority Mail Flat Rate.

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