Al these are redwood or at least that it what the label says on one of them, at this point I just took a rag and warm water and wiped them down the one is ready to go I think but the other one is well should I say for parts only lol, the inside needs rebuilt totally and rewired I tested everything in it the thermastat works but the heating coil is shot but guess what I got 2 extras!!!! I am in the process of making room in the house and as soon as I get everything settled in I will take some pics to share with you all. As far as building brooders etc AL I have 96 acres left to fill, now on the feed part..... Thats a different story!!