Shipping rates are controlled in 3 ways in Squirrelcart. All 3 ways can be used together to offer rates to your customers.
Topics Covered
This is the preferred, and least complicated way to handle your shipping rates. It works by having your server query the courier's website for rates at the time of checkout.
Rules are used to create rates manually, that will be offered based on conditions relating specifically to the order as a whole.
Product based rates are manually specified for a product, on that product's record.