I'm in the process of building a coop for my ever-growing chicks and can't go any further until I decide what to use for the flooring. I live in Sonoma County in a rural valley; our temps reach highs of 105º and lows of 25º-30º. The extremes last no more than a few days or weeks, and most of the time our nights are between 45º-65º. This site (http://www.winecountrycoops.com/index.html) is based in my area and initally I was going to build my coop very similar to theirs -raised, with wire flooring. In winter I'd lay a tarp or plywood on the floor with shavings, in warm weather just use the wire. But I'm concerned about persistent critters (I did have a rabbit in a wire-bottomed hutch loose a leg to a predator when I was younger), the wear on the chicken's feet, and the draftiness. Plus, if i went with a narrow wire grid to keep out critters, it'd practically be "solid" anyway with their droppings, wouldn't it? I will clean the coop or course, but wire seems rather labor intensive. I'm leaning towards a solid floor with deep shavings now. My plans have plenty of summer ventilation, so the shavings shouldn't be too warm. The footprint of the coop is roughly 3 1/2' x 8' and will have three nestboxes, and have an attached 16' x 8' run. I plan to house 8-10 hens. Any thoughts? Oh and here are the girls (and a roo?!) saying, "Quick gawkin' and get buildin'!"