I am trying to plan my coop which we will build this spring . I have read through many coop threads but have a few questions . The plan is for a 4 x 4 coop I plan on getting brahma chicks . 1. How tall should the roost be from the floor & ceiling . I have read that since bramas are heavy they do not fly very high . I was thinking 2 ft off the floor . 2. do I need a walkway up to the roost? 3. Do the nest boxes need to be elevated ? If so how high off the floor would be good ( is 1ft ok) ? Or for bramas would on the floor be better? Since the coop is small I want to utilize the space as best as possible. I also plan on having the food / water inside at least during the winter.