Should I put insulation in our 8x8 coop to keep them warm in the winter? Or will a heat lamp be enough? For the chicken door to the pen outside, is it okay if it is elevated above the dirt outside? Or do I have to make a ramp or something for them to climb? Do the nesting boxes have to be 1x1? Because i am using an old bookshelf and it will be a 2.5'x10". Is this measurment a thing of preference or do they need a bigger height to fit? i have some Golden Cross Pullets. HOw many nesting boxes will I need for 18 hens? What should I put in the nesting boxes? I was thinking of pine shavings. Also for teh floor, would pine shavings work? And is it easy to clean up off the floor?