After lots of begging and pleading my husband gave in and now I am going to convert an old (built in the 60's) playhouse in my backyard into a new coop!! It's 12' x 8' inside...lots bigger than I would have space to build in my teeny backyard other wise and very well built (as well as my 60+ year old house!) My first coop is much too small now (I planned to have 3 hens-I now have 11- I think I'll stop at 15 LOL ) Here's some of my questions: -It has exterior siding made of individual boards-on the interior the studs are exposed, should I put up plywood inside (to reduce any stray draft-cold isn't a huge issue here-I'm in central GA-we get 20's at the lowest usually and only one or two nights of teens)? -Also, anyone who had big heavy breeds (like cochins)-how low is your lowest nest box?-right now I have mostly EEs and a few medium weight breeds who can jump/fly pretty well-but i am raising some cochins and I don't want them to end up laying on the floor because they can't reach the nests. Thanks in advance!!