Weight-based shipping rates can be defined and the desired shipping method can be set in the administration.
How it works?
Store admin can enter their own customized "table" rates to determine the shipping cost in that section. It allows multiple ranges of rates based on different weights. The format of the weight to cost in the admin area is: weight:cost, weight:cost, etc.
For example if you want to setup the following:
- Cart weight 2kgs or less cost RM8.50
- Cart weight 2.01-2.50kgs cost RM10
- Cart weight 2.51-3.00kgs cost RM13
- Cart weight more than 3kgs cost RM30
You would use the following rates:
2.00:8.50, 2.50:10.00, 3.00:13.00, 9999999:30.00
The last one is important because it sets an virtually infinite ceiling. If you didn't have that 9999999 rate, then anything over 3kgs would have no available rate and would not show.