For lab-based price sheets, you can choose to automatically charge your client the same amount for shipping that the lab will charge you.
You'll turn this setting on by going to Commerce > Pricing, then click on the individual price sheet. Toggle on the "Charge my customers the same shipping amount as the lab charges my studio." option to pass on the lab shipping cost to your clients as seen here:
To view the lab’s shipping prices, click the blue “shipping” link on the right side of the price sheet. (This shipping time does not include in-lab production time.)
* Please note that if your client chooses a shipping address for a country that is not currently supported by the lab, the client will be charged ground shipping and the order will ship to your studio.
You can also allow clients to choose a shipping speed at checkout. If you select this option, clients will see the various shipping speeds that the lab offers, and they will be able to choose and pay for the shipping speed they wish. Please keep in mind that these shipping options do not include in-lab production time, nor do they include the time it takes your studio to approve the order for printing.