This was a dog house I got from a friend. It was a 3 dog house. It had 3 entry doors and was divided by 2 walls leaving 3 living areas. I knocked off the front then knocked out the dividing walls to create one large area. Theres 3 nesting boxes in there and 3 roosting poles (2x4s). So i put 1 hinged door on the front with 1 entry point. There are 2 16x8 vents in there also. The whole coop is from scrap wood which was free. I have like $16 in it. 1lb screws $8, 2 vents $4, and 2 hinges $4.