Feature Request - Ability to assign non-machinable to individual products

We sell a lot of tires from our Shopify store, and they do not pack well in boxes. So we have to basically just wrap them and mark the shipment as non-machinable. If there were a way to add this type of logic on a product level, I was hoping that would help the front-facing side of the shipping calculator to our customers, as they are definitely not paying or being quoted the correct costs to ship a non-machinable item. I do have some back-end logic that helps me identify tire orders specifically and automatically check the non-machinable on those orders post-sale. This type of logic that I'm suggesting as a feature would definitely help us avoid a potential loss.