This shipping module enables you to create shipping rates based not only on weight of the package but on the price of the order as well.
Let's say there are following orders taking place:
1 - an order with weight 100 g and cost of 1 $
2 - an order with weight 100 g and cost of 1000 $
3 - an order with weight 50 kg and cost of 1 $
4 - an order with weight 50 kg and cost of 1000 $
The idea is that a shipping fee you are going to issue to a customer should be calculated based on the value of the order, not only it's weight.
Orders 1 and 2 have the same weight, but the cost is different. The shipping in case 2 can be less then in case 1. It can even be free.
Orders 3 and 4 have the same weight, but the cost is different. The case is the same.
Obviously, the shipping rate for more expensive packages can be less with no regard to the weight.
This module therefore allows you to create weight/price matrix while specifying the price of shipping for every weight/price combination.
Shipping rates can be defined and activated per Geo Zone.