This is a design we have used to make portable pens. You can make as many panels as you wish and they can be set up freestanding or against a coop. They are lightweight and easy to set up. I use wire plant stakes for the hinges at the corners. If you make them much taller than 36" high, you will have trouble reaching over to replace feed and water. We put bird netting over the top and hook it over the corner stakes. To enter the pen, slip out one of the corner stakes and the panel will open like a door. I want to make some that are 4' long so I can use them inside the barn as end pieces to the run. The panels shown are 8' long by 36" high. We have used chicken wire, vinyl coated wire, hardware cloth, and heavy netting. Hardware cloth is the sturdiest, but makes the panel a little heavier. They are obviously not predator proof, but may work for indoors or putting babies out for an afternoon in the sun. Also for temporary pens for those of us who hatched more than we thought!