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          Current Problem
         
        There is an option to setup a default on the product but we have 1000's of products and need a shipping rule that recognises length OR set length on a rework item that will change the courier if a long box is selected. Most couriers charge differently for items over 1.2m and we sell a lot of rolled up posters over 1.2m  | 
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| Idea to resolve Problem | Length option in shipping rules then a length option on rework item that reflects the shipping rule. | 
I have edited my problem above as can now be more specific on the issue at hand. Setting default on product by product was not a solution when you have 1000's of items to change. Therefore my new resolution is clearer to allow for a simpler solution.
I would agree with this but can't you just a default courier switch or default courier on the box product?