Scoring cheap or free materials is always fun BUT, what people think a chicken should be comfortable with, is often not the same as what they really need.
They need 4-5 sq. feet of room inside the coop (not including roosts & nest boxes).
They need draft free housing with sufficient ventilation. They don't appreciate slim, wooden rods as a roost. Chickens like 2 x 4's with the wide side up. They like to have their feet flat so they can rest their head on top of them- keeping them warm in winter. A poop board under the roosts will make it easier to clean up their deposits.
Roosts should be far enough from a wall, so birds can turn around without getting bumped., or breaking tail feathers. Some alpha birds want they highest roosts. Heavy breeds who can injure their feet jumping down - are better with something lower. Some birds with big crests and muffs or beards need low roosts because their feathers obscure their vision.
