Why do nesting boxes that protrude from the side of the coop seem to be so popular in modern coop designs? Is there an advantage other than just preserving floor space in a compact coop? I got lucky and my house came with an old coop that was actually built pre-WWII but is sturdy and spacious. My only complaint is that there's no easy way to get eggs without stooping to climb in and swatting chickens away from the door the whole time. ;-) So my spring project is adding nesting boxes that are accessible from outside. I have a suitably large and open wall to work with, but should I cut a hole and build the boxes out? ( like this: http://cdn.backyardchickens.com/c/c9/c9821a77_DSC03336.jpeg ) Or cut a hole and build the boxes inside, placing a door over the exterior hole? (like this http://cdn.backyardchickens.com/4/48/350x700px-LL-4804c535_2011-07-17_18-03-29_328.jpeg ) Seems like the interior build would be much easier, but I'm wondering why everyone seems to be building out with a lifting roof?