Ignorant beginner here, i.e., I know almost nothing about raising chickens; however, I'm going to have some blue Orpingtons to hatch on May 13th. I've been reading the posts/replies about "deep litter", and I'm definitely going to use it inside the coop that I'm going to build inside my one-story horse barn. I will use a 12-foot by 12-foot area (144 square feet) for a pen inside the open barn. It will be like the chickens are outside when the two large sliding doors of the barn are open. Inside the pen/run I am going to build a coop that 8 feet by 8 feet and six feet tall (64 square feet), i.e., 80 square feet for the run. Again, the coop will have deep litter. Is it also alright to have deep litter in the run also since it will be inside the barn and will never be rained on. Thanks!