We are attempting to design our first coop and are having a hard time figuring out appropriate dimensions. There's so much information out there and we're new to chickens. All help appreciated. 1) Live in the Pacific NW = rainy, chilly winters 2) 3 hens (Ameraucana, Barred Rock, Ancona) 3) smallish urban backyard, with coop in raised area of backyard House: 4' x 4' x 4' on one side and 5' on the other; raised 3' off the ground. Nest boxes 12" x 12" x 14" on the outside. Could we move these to the inside? Linoleum floor with pine shavings on top. Could we use sheet metal instead? Roost 2' off the ground and across one side (i.e. 4') Run: 5' x 9' x 7' on low side, 8' on high side Sand Can we get away with smaller dimensions? If we lower the house to 2.5 feet would we have enough space to clean under there? Most of the time they will be in the run, but we will let them roam in the yard when we're out there (we have bald eagles and hawks around). We're trying to do this as cheaply as possible - both unemployed - but we also want to make sure it's done right. Thanks!