Ok. I a chicken newbie. Have 4 BO chicks in a brooder in garage right now. I am building their coop with help from my husband. Let me know what you think of what I have done please. I still have to put the roost inside, the chicken ramp for them to get in and out & have to build their run. I think the run will be the easy part. Am I correct in that I need to use a 2x4 for the roost? or will a 2x2 work? Thank you in advance for any ideas/advice. Oh yeah, the coop is 4'x4' so 16 sq feet inside and then 3 ft of head room. I figured for the 4 sq ft per standard BO. Run will be 10-14 sq ft per BO. Here are the pics. Hope this works