Hi all... I'm going to be building a coop this spring so I can expand my flock. I currently have 11 chickies and would like upwards of 25 or 30. They will be free range. I thought that I had read that if you free range, your coop should allow 12 - 18 inches per bird. So..., my idea of an 8 x 10 coop, salt box type, tall enough for me to stand in...should be plenty big. Here is the plan of the coop that I am interested in building...the very last one http://www.hobbyfarms.com/livestock-and-pets/chicken-coop-design.aspx I found this in "Chicken" magazine (from hobby farm). What I'm confused about is...according to the narrative associated with this coop, it is best for a SMALL FLOCK of a dozen birds...but...it's 8 x 10 feet! Building material...I'm not a builder so...these may be dumb questions: 1. Windows: the plan has windows already in it...but...can I purchase the cheap (or free) windows that you can find on craig's list...and then work the plan around it? 2. Insulation: i DO want to insulate...so I don't need to heat the coop...what do you all suggest...cheap but works well. I am thinking that rigid foam stuff...that comes in a rigid panel. anyway...any help would be welcome.