I have been driving myself crazy for over a month looking for a new house for my yearling redfoots. There is absolutely NOTHING geared towards tortoises other than your typical small tanks or tables. My guys live on my large screened lanai (Florida) with a modified chicken coop as their enclosure. I have come to the conclusion that I'm going to have one custom built. I know there are a lot of disadvantages of using wood, however, I want it custom and cute. Yes, I said cute. It may not last as long, but I am ok with that. With all that being said, is untreated pine wood and a water based sealer OK to use? I have read so many conflicting opinions and possible facts regarding utilizing pine wood for building materials. The enclosure I have now is pine and no problems. I will be using radiant heat panels and CHE and have read that heat brings out the toxicity of the wood. I'm assuming if you seal it, that can't happen?? Thanks!