To make your shipping costs easy and predictable we've integrated MarketSpace with many of the leading shipping carriers. When you use one of these services, your shipping rates will be automatically calculated based on the weight of your shipment.
To use these shipping rates, go to your Manage Shop page, Shipping section and click "+" to choose the shipping carrier you need:
Then on each of your products, enter the weight of a single item. Customers will then be able to choose from the shipping options from that carrier and be shown an accurate shipping cost quote in their checkout: