The COOP-12 is shipped knocked down and easily assembled. Made of high density polyethylene plastic. Supplied with a top swing-open door and open bottom. Dimensions: 38" x 22 1/2" x 10 3/4" Capacity: 12-14 full-grown birds.
Seems very sturdy and well made. Will definitely hold the 12-14 birds the site says. Im happy with them so far and will see how they hold up during transport.