This is the shed that I will be using for my coop. The back part that I will convert is roughly 3' x 10'. If you can see at the roof line inside there are blocks of wood nailed in, i think I can remove them for ventilation and cover with screen. The garage door will be opened when the weather is warm enough and the inside will be a wall with screen "windows", do you think that would be enough light without windows? I can run a light inside in the winter. left side right side and where the run will be inside my son also wants to build a tractor to move around the field after the garden is spent in the fall. I will update in a few days. Im so excited to finially get started.