I use the Premier Electronet with a charger -- it is 48 inches tall, but they also have a 42 inch one as well. I would have gotten the shorter one, except that I also have chickens in the same areas. I have predator issues and stray dogs so I need my fence electrified. Any woven wire mesh fence that the geese can't squeeze through would work as long as it is pretty sturdy. The geese will chew on the fence, or lean on it to try to get the grass outside the fence.