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How To Measure Your Windsock And Frame
1) Measuring your windsock diameter
- Windsock diameter is measured across the large opening of the windsock with the windsock in the round.

2) Measuring you windsock in the flat
- If a windsock doesn't have a frame to keep it round for measuring purposes, it may also be measured in the flat. to do this, the following method must be used. With the windsock on a flat surface, measure across the width of the large opening, or throat of the windsock. Take that dimension, multiply it by 2 then divide that number by 3.14. That will be your windsocks' true diameter.
 Windsock diameter per industry standard:
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Windsock
Diameter
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Width Of
Windsock Laying In The Flat
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4"
Windsock
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6 3/8"
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6"
Windsock
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9 1/2"
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8"
Windsock
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12 1/2"
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10"
Windsock
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15 3/4"
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13"
Windsock
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20 1/2"
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18"
Windsock
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28 1/2"
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20"
Windsock
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31 1/2"
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24"
Windsock
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37 3/4"
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36"
Windsock
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56 1/2"
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3) Measuring your windsock frame
- The windsock frame diameter is the dimension measured across the largest hoop.

4) Measuring the diameter of your extended frame
- The proper location to measure an extended frame is at the largest hoop, as shown in the illustration:
 
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