We've had 4 chickens for almost 2 months now, and they are nearing 5 months old. It became evidently pretty quickly that we needed a bigger coop, and I think we did a darn good job of getting a great one up and running in just a few weekends. We will be improving the run eventually, but it works very well for now. Outside dimensions of the coop are 4x6'3", with the walls being 8 feet tall with additional vented space above there. The run is 6 feet tall, and approx. 8x10. The ladies are out in their run all day and free range in the yard from time to time. We are thinking of adding a few more gals next year, maybe Bantams. So...what does everyone think??