This was built quickly, not quite square, not quite level but it's good for now. I've used 1/4 inch welded wire in the windows with fine screen over that. Need to put the shutters on the front. I left it off the ground due to the Hawks we have around they can quickly hide under it. I used white wire closet shelving covered in 1/4 in welded wire to help with cleaning and ventilation. It's 10 ft wide, 4 ft deep and 6 1/2 ft center. The sides will have 2 levels of laying boxes and the perches along the back wall.