Finely tune your shipping rates
Rates for Different Products: Set unique rates for different groups of products. Add carrier rates to some, rule based rates to some, free shipping to others.
Advanced Rate Types: Adjust carrier rates, edit rate titles, ship-from post code, customs/duties, package dimensions. Use by item, % of price and more.
Sub-zones & More: Use sub-zones based on a list of postal codes. Edit service codes. Restrict products from zones. Restrict shipping methods from products.