I want to construct a "bare-bones" PVC chicken pen. I was thinking of something 10 x 10 x 5. The chickens would only use it when my DW and I were home, so predation is not the chief concern. Has anyone thrown together something very easy and simple like this? Would 1 inch PVC be sufficient? And would I need some kind of reinforcement going up the middle of each 10 foot side? Lastly, is there an easy way to make a hinge and latch so that I can open up one side to put them in or out? The sides would be covered with chicken wire and the pen would be topped with deer netting, so the weight would be minimal.