I learned a lesson from my six year old grand daughter today and thought I would share it with you. I had just finished a new coop and was about to put the nest boxes in when I realized I was going to be short aon plywood. Going all over the yard looking for something to break down, my grand daughter told me she had the answere to the problem, use some of the milk crates. They are just the right size. After setting them up, I realized how easy this was going to make cleaning the nest also. From the kids we learn too.