I love the Chicken Moat! Personnaly, I would build it 6 feet high, 6 feet wide, with good durable material to last longer. Perhaps 60 years ago, I started my first chicken flock in a small Texas town. We were dirt poor and I had come to realize that in order to improve the availability of good food, I needed to raise chickens and garden. At the age of ten I built my first chicken coop from old vegetable crates obtained from the grocery store. My first flock was created with a setting Banham hen obtained from my grandmother. The chicks were bahnams and she sat on 10 eggs. As the chicks started to hatch, I went to the local feed store and traded two jars of honey from my hee hive for 12 Rhode Island Red chicks. During the night I placed the RIR chicks under the hen and she raised the entire 22 chicks as her own. I allowed the chickens to free range throughout our yard and they kept the insects under control and I do not remember any major problems with damage to my garden. We ate fried chicken, blackeyed peas, squash, onions and tomatoes. I felt very successful as a ten year old kid. I wish I had known about the moat idea.