To build your own coop use 1/2 inch plastic PVC pipe. Stick one end into the ground and bend it into a half circle and stick the other end in the ground. Creating a half pipe shape. Do this every two feet or so until you have the size of the coop you want. Then take chicken wire and plastic wire ties used for electrical wiring and wrap over the top of the pipes using the ties to hold the wire into place. Bend the wire into the coop about six inches and then place a treated wood board on top of the bottom nailing the wire to prevent animals from pushing under the coop to get at the birds. For a door simply construct a small frame out of wood with a plywood door and hinges and wire tie it into the end. Cover the rest of the end of coop with wire and your done. Quick easy and fast. Few hours and your done.