I just had to share the first coop my DH built last year for my 8 girls. I am so proud of him! It's 4' X 8' and he built it without any plans! Eggs are gathered from the side double doors, food and water containers hang from the ceiling, the floor is hardware cloth so poo drops through to the ground and there is power into the coop for light and heat. It's totally insulated, so no additional heat was needed when the temps hit the single digits. During the winter I cover the hardware cloth floor with a piece of heavy cardboard and add pine shaving throughout the winter. I also used a heated water bucket that plugged in inside their coop. Additional pics show the fenced yard we added soon after.