I wish I had known that it was going to take me a LONG time to get my coop built. It didn't happen in my "free" time. It didn't happen in a dedicated weekend (or two). There was always something that didn't work, and needed adjusted.
I wish I had known that chicks outgrow a small brooder VERY quickly. I had always heard I could use a big cardboard box. That only lasted a couple weeks for me.
Oh, and I wouldn't do external nest boxes again. I spent almost as much time assembling them as I did assembling the coop. I would still put a door on the nest box so that I can access them from outside, but I would make the coop a little bigger so that I could put the boxes on the inside of the coop.
I wish I had known that chicks outgrow a small brooder VERY quickly. I had always heard I could use a big cardboard box. That only lasted a couple weeks for me.
Oh, and I wouldn't do external nest boxes again. I spent almost as much time assembling them as I did assembling the coop. I would still put a door on the nest box so that I can access them from outside, but I would make the coop a little bigger so that I could put the boxes on the inside of the coop.