It is good to self design a chicken coop for your home but even better to consult a professional. A professional coop designer can help you deal with all the important measurements and dimensions of the coop. it important while building a chicken coop plans that one considers all the important factors that will help one to keep a coop healthy and clean. for example, some added features can be included in the coop design to make it user friendly. This will allow you to monitor the chickens and keep the coop clean and healthy. Install a double door or a single wide sliding door to provide easy access to the coop. However, the coop must be not be easy to access by predators and hence electric fencing and netting the coop is important in this case. Predators like foxes, owls, eagles and coyotes and rodents can cause disturbance in the coop and harm the chickens. so this factor has to be kept in mind while designing a coop plan.