The Dog Electric Fence wire comes in two primary gauges: 20 gauge and 18 gauge. The lower the number, the thicker the wire and the more expensive the roll is. Both gauges are sold in 500 ft rolls. On it’s own, 500 ft of wire will enclose around ½ acre.
Basically the thicker the wire (the lower the gauge) the longer you can make your fence perimeter and still have your fence functioning 100%. We recommend that if you plan to use more than 1,000 ft of wire, you switch to the heavier, 18 gauge spools.
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