Retailers with products that are large and volumetric often require: Rates at checkout (to ensure they charge correctly and do not affect their conversion rate by offering a flat rate that is too high, or lose out on margin with a flat rate that is too low. Rates in dispatch - to make decisions around which carrier to use. We currently support this for single items in orders (for certain platforms that make this available to us) and we do to some degree for multiple orders but not all the ways retailers have asked for. For example; if an order has multiple items there are a number of ways it can be packed and therefore affecting the rate returned by the courier. It would be ideal to offer a packing method in settings so that retailers can choose which method suits them. Some of the ways I have noted that retailers pack today are: Combine all items together in one larger carton/pallet - we are doing this to some degree Send each item seperately in their own carton Stack items Using the above 3 user story, here is a practical example: Order : 123456 Product A 40 x 40 x 40 cm Product B 20 x 20 x 20cm Product C 10 x 10 x 10cm Option 1. Add up dimensions Eg 70 x 70 x 70 and return the rate based on that weight - we can do this today Option 2. Return a rate for each line then add them all up together - requested feature Option 3. Stack these to the longest dimension 40 x 70 x 70cm - requested feature There may be other options to explore.