This is our coop in progress. It's an 8X12 wood shed with a wire partition so part is for storage. We attached a covered 8X12 run we bought at Tractor Supply. (Love that store!). We connected it to the shed/coop with a wire 'breezeway' that hubby riffed with metal flashing. The coop portion is 8X3.5 but I think we will need to make it bigger. We cut triangles out at the peak on both ends of the shed for ventilation, covered with wire mesh.