The older birds are 16 weeks old. All the egg posts have us eagerly awaiting. So, I went and opened and finished the roll out nest boxes. I am using Opa's design with some mods. I think the biggest mod is having half the box in the coop and the other half outside for easy collecting. I had some rubber for the curtain but I was concerned about its stiffness. Then I placed a piece of it in the freezer, it was stiff and useless. Never would allow the egg to roll under it. So I used some landscaping fabric, the stuff doesn't fray and is tuff to cut. I have my egg collection bucket hook installed, a couple of handles for the boxes and I'm set. Thanks Opa, I'm sure these boxes will be great. P.S. Should I glue a fake egg to the pads to get them started?