Hi all, This is my first post here, so forgive me if I'm asking questions that are the same questions you get ALL the time! I've been wishing for chickens for about 5 years and I'm finally moving to a house in the country where I'm going to have space to have some! YAY! I'm planning now to build my coop in the spring. I live in northwestern Pennsylvania (zone 5A if that helps) so keeping things warm in the winter is a concern. I'm planning to keep 6 chickens to start -- thinking 3 buff orpingtons and 3 barred rock. I chose those 2 breeds based on size (for winter), egg production, and friendliness. I'd like to build my coop and run large enough to have the option to add more hens later -- maybe as many as 12 or 15. I'm wondering what dimensions you all would recommend for the coop and for the run? I've really enjoyed browsing all the coops on this site and I've found a lot of inspiration there! I'm thinking I'd like to build something with a full-size man door so I can walk INTO it. I'm thinking a metal single-slope roof and external nest boxes. I'd like to do the deep-litter method I've been reading about on this site (I'm hoping that will help with heat in the winter). I want to spend as frugally as possible -- I don't care if it's super pretty and decorative in the yard (though I admire those of you with super pretty coops!) but I want it to be functional, reasonably easy to keep clean, and most of all enough space for healthy birds!! I probably won't be able to allow the chickens to free-range much at all (neighbors have 2 black labs that they let run loose, and I don't trust them), so I need to make sure everything is roomy enough! Also wondering -- as cold as it gets here, should I insulate the walls?