Were just got a permit to put up a coop in our urban Mid-western city backyard. Well be making a run out of dog kennel panels that will make a 3 sided run against the wall of our garage. Were framing an opening into a henhouse in the garage. Well be able to collect eggs and clean the henhouse from within the garage, and access the run through a kennel door. From outside, its a rather steep ascent into the garage opening. I have an old bunk bed ladder thats just the right size for inside the run will that work? Will I need to fasten a board to the bottom? Its like a miniature simple wooden ladder, about 4 feet long and a foot wide. Also any advice for building a garage coop? We plan to use straw to insulate in the winter, and it will be under a window. We want to set lights up on timers and hopefully still get some eggs this winter. It gets quite cold in the winter here. Thanks!