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1. Item Weight
2. How can I calculate shipping for very light weight items?

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Document Number: 844

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Field 8: itemweight (optional, may be required by itemshipmethod)

This field contains the item weight. In order to use approved shipping standards, all products using itemshipmethod must have their weight listed in pounds.

Weight conversion table
Ounces    Pounds
1=0.0625
2=0.1250
3=0.1875
4=0.2500
5=0.3125
6=0.3750
7=0.4375
8=0.5000
9=0.5625
10=0.6250
11=0.6875
12=0.7500
13=0.8125
14=0.8750
15=0.9375
16=1.0000

Most merchants will only need to enter weights here. However, some may need to add box dimensions. This can be done using this format:

QTY#WEIGHT:LENGTH:WIDTH:HEIGHT

For example if you have a 6 pound box that measures 10 inches by 8 inches by 4 inches you would enter:

6:10:8:4

You can specify multiple boxes in an item like so:

WEIGHT:LENGTH:WIDTH:HEIGHT=WEIGHT:LENGTH:WIDTH:HEIGHT=WEIGHT:LENGTH:WIDTH:HEIGHT

So if you have the original box above as well as a 3 pound box measuring 5 inches by 3 inches by 1 inch you enter

6:10:8:4=3:5:3:1

Note: If you do not specify a length, width, and height then the shopping cart will use an internal algorithm to guess the dimensions. If you require extremely accurate shipping charges then you MUST enter box dimensions.