Surfboards and other bulking items have unique shipping requirements and costs. Allowing vendors to set shipping as non-refundable at the product or order level would increase profitability and decrease stress.
Hi @kimossurfhut 
These are the peer to peer forums, shopify staff pulled stakes long ago.
For actual feature requests or support contact shopify support advisor DIRECTLY:
https://help.shopify.com/ → click “Chat with a human” (as of 2026)
There are some options to implement this, for example, by creating a custom shipping policy or using line item properties to tag certain items as non-refundable. Modify your theme to clearly show this on the product pages and in the cart. It lets customers know from the beginning, protects margin, and minimizes post-purchase disputes without interfering with the core checkout experience.
Mahalo for your detailed thoughts!