First of all, this is actually quite a functional coop. The chickens can eat grass and get sunshine and exercise, or run up to get shelter from predators and weather, and lay their eggs. The coop itself probably won’t stand up to a large predator attack, but it is protected by an electric fence. There are not any build details but was that a requirement at the time Hambone posted??? According to the BYC website, the user Hambone has been a member since 2009 and was last seen April 5, 2018, and all reviews on this coop are dated after that. It is not certain whether Hambone will ever return to provide more info. Therefore just look carefully at the photos provided. Some people (myself included) are not engineers yet build things anyway. There are two one star reviews and a 3 star review. I’m leaving a 4 star review because a coop similar to this without the electric fence worked well for years.