The roost, attached with long screws: Annnd the girls greatly enjoying their new home! Cost: Coop $60, paint for coop, $20 Lumber: free from a friend who had dismantled her deck 3 rolls of hardware cloth: $90 Total: $170 BARGAIN! And very secure, as far as we can tell. We will attach a nest box on to the right hand window soon as the girls are only 8 weeks old. They are so great....on the 2nd day they went out cautiously to check out the new run, and have loved scratching around. Then they go right back inside at night and put themselves to bed on the roost. SO great. Any questions about a Little Tikes coop, please ask. It worked great and was very economical, even buying one off CL. We live in Georgia and so heat was more of a concern than cold, although I have heard you can add insulation. So far the house has been perfect as we can open the windows to vent and there are two vents at the top, too. The run is entirely enclosed in hardware cloth with a 1-2 foot apron (we will add some more on when we can).