Best fencing option for large yard for shih tzu?

I want to put in a doggy door and allow my pet access to outdoors at times. trying to decide between fencing a large yard which would be very costly, or a small area around a patio, picket fence or privacy or chain link. neighbors on two sides of yard only. red brick house.|||The best bet for the dog is a wooden privacy fence which provides a lot of room to run and no visual distractions that might mar the fun experience of having the whole back yard to romp in. (Also much less likely to get tangled in trying to dig underneath.)|||Check on line for small kennel run, like a 10X20 or larger, they will be chain link type fencing, if you find one it is a good idea to bury chicken wire several inches under the ground and attach it to the bottom of the fence so your treasured pooch can%26#039;t dig out.