Next, put a lean-to roof preferably on the South side so you can walk along the length of the coop out of the weather. Make it at least 5' wide. Remove the pen fencing on the same lower side of the coop, after you put up fencing on the outside of the lean-to to double the pen area to at least 4' wide, and as a bonus you have easier access to the underside pen now. Hardware wire all the way along the bottom of the fencing to keep predators from reaching in, and chicken wire all above that to keep the small chicks from flying out. Need the heavier fencing all over to keep out the meaner stronger predators out. Also helps to have access hatches all along that side to allow easy access into the coop.