I'm new to chickens and need advice on my planned coop design. I would like to build a coop (for 7 chickens and 1 rabbit) that would attach to the outside of my garage. Think of how a kitchen cupboard hangs from the wall? Well, then picture a giant cupboard that opened to reveal nesting boxes and floor space. If I don't care about eggs do I need nesting boxes? The bottom would be wire mesh to allow droppings to fall through, but tight enough to prevent predators from reaching in. (Is 3 feet off the ground too high for chickens to jump and/or climb a ramp?) Part of the front of my "cupboard door" would lay down to make the ramp. The rest would be wire mesh and board (alternated for cold and warm seasons). We live in the north with deep freezes and lots of snow...anything I should do to insulate the coop? I'm planning on putting small doors into the sides to make it easier to change the food and water. Any advice pertinent to that? The chickens will be free range during the day. How much room do they need for nighttime and winter housing? I'm open to all advice! Thanks!