Makes sense. You will always be happier with a bigger brooder as they get older. I don't believe that they will have an issue finding what they need, but it will definitely help keep it warmer for when they are younger.Well, I figured at 4x8 is going to much bigger than what they need at the beginning, it will suit them much better later on. I have 15 arriving tomorrow and 30sq ft is what is the bare minimum for 15. I read on a post saying chicks may have a hard time finding water, heat, feed if the brooder is large. Im not sure if thats true but I figured if it did happen I would be prepared to section it off. The divider slides in and out easily.