I started work on what will hopefully be our last chicken coop Friday afternoon. After all the time I spent on building a 10x12 one earlier this year, we ended up with more chickens than it can comfortably hold. So, after much discussion with my wife, we decided to fence in our 2.5 acre field and build a coop big enough to hold a hundred or more chickens. We have some sort of addiction thing going on, I think. We've gone from 13 to 70 chickens this year. The old coop will become much-needed storage space, so it's not going to waste. The new coop is pole-barn-like in structure, because (a) it's cheaper, and (b) you can build them quickly. It's about 12x24 (I say 'about' because I believe things should be 'square enough' rather than 'in square' ). I think there will be 16-20 nestboxes, and the current plan is for 96 feet of roost space, with room to grow. It's like a small house, practically.