A coop is a building which provides shelter for poultry or chicken. Outside, it looks like a giant birdhouse, which it actually is but inside, there are rooms or divisions. These divisions are called nest boxes where chickens sit and lay their eggs. Providing a good coop for your chicken can help in maximizing the production of eggs. To have an idea on which designs are best suited for your chicken, look for some free chicken coop plans on the internet. Here, you will find hundreds of designs to choose from. The important thing, however, is not the look of the coop but how it will function as a chicken shelter. Most coops have one doorway and another small one near the bottom of one wall with ramp attached to it for the chickens. Still, with this design, the chicken should be provided proper ventilation when they are resting. Like a regular human house, the coop is divided into the bedroom where the chickens sleep and a dining room where they feed. Each room has its own individual characteristics that are based on the behavior of chickens while they are awake or asleep.