The WooCommerce "USPS" premium plugin is fantastic but omits the ability for a user to input Box Weight as a factor when determining cost.
We need a field where an admin can input box weight that will be factored into the final shipping cost. This plugin is calculating cost from the USPS API.
1) We need a field on the "Product" custom post type in the "Product Data" section called "Box Weight" where user can input weight in lbs.
2) This field should be included in the final shipping cost with a value calculated through the USPS API
3) The value should only be factored in once per order