I did a search and couldn't find a solution for this. When I take my products (of various size and shape) to USPS, they always charge me for shipping based on the size AND weight of the box I'm shipping my products in. I only see an option for weight on the product page and I only see some options for default boxes on the Shopify Shipping settings page. Is there a way to just provide a unique size and weight for each product and have the shipping cost calculated based on that?
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