ZipShip

USAGE
By default, the module comes with support for 3 zip code zones. This can be
easily changed by editing the line below in the zones constructor
that defines $this->num_zones.

Next, you will want to activate the module by going to the Admin screen,
clicking on Modules, then clicking on Shipping. A list of all shipping
modules should appear. Click on the green dot next to the one labeled
zipship.php. A list of settings will appear to the right. Click on the
Edit button.

PLEASE NOTE THAT YOU WILL LOSE YOUR CURRENT SHIPPING RATES AND OTHER
SETTINGS IF YOU TURN OFF THIS SHIPPING METHOD. Make sure you keep a
backup of your shipping settings somewhere at all times.

First select the method you would like to use - Weight/Price/Items.

If you want an additional handling charge applied to orders that use this
method, set the Handling Fee field.

Next, you will need to define which zip codes are in each zone. Determining
this might take some time and effort. You should group a set of zip codes
that has similar shipping charges for the same weight.

When you enter these zip code lists, enter them into the Zone X Zip codes
fields, where "X" is the number of the zone. They should be entered as
five digit postcodes. They should be
separated by commas with no spaces or other punctuation. For example:
1: 32903,32937
2: 32901,32935
3: 32940,32904

Now you need to set up the shipping/deliver rate tables for each zone.
Again, some time and effort will go into setting the appropriate rates.
Define a set of ranges and the shipping price for each range.

For instance, you might want an order than weighs more than 0
and less than or equal to 3 to cost 5.50 to ship to a certain zone.
This would be defined by this: 3:5.5

You should combine a bunch of these rates together in a comma delimited
list and enter them into the "Zone X Shipping Table" fields where "X"
is the zone number. For example, this might be used for Zone 1:
1:3.5,2:3.95,3:5.2,4:6.45,5:7.7,6:10.4,7:11.85, 8:13.3,9:14.75,10:16.2,
11:17.65, 12:19.1,13:20.55,14:22,15:23.45

The above example includes weights over 0 and up to 15. Note that
units are not specified in this explanation since they should be
specific to your locale.

CAVEATS
At this time, it does not deal with weights, prices and or units that are
above the highest range defined in your rate table. This will probably be the
next area to be improved with the module. For now, you could have one
last very high range with an appropriate rate to include those amounts.
instance: 999:1000