In Wisconsin, a permit to keep white tail deer enclosed requires a fence that is at least 7’10” high:
To keep wild white tail deer from entering your property a 6’ high fence will do the job. Why? All animals are basically lazy. Jumping a 6’ high fence is hard work, so deer will walk to the neighbors’ property and eat their trees and plants.
Ray Statz, Certified Fence Professional
Chairman of the Board
Qual Line Fence Corp.