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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.

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