Board Fencing w/ wire makes a perfect fence because of its security. These types of fences are designed to keep all types of animals in or out. The small spacing of the wire fence is securely nailed to the posts and rails and will any sized pet from a tiny dog or even a horse from leaving the property.
Invisible fences are becoming more and more popular. They make the perfect fence for those that don't want standard fence or want their yard to maintain a natural open feel