Yes Seth will move to the bottom. Also The kids CAN open the big one if they tried (not that they are allowed to) so I don't think the bottom door (yes Seth will have his own door
) will be to big of an issue. I plan on getting the same latch and hinges for the bottom door as I used on the top door but There is a way I can drill a hole with the latches that I can put a lock through them, so I think when I finish the bottom chamber I will drill holes in all the latches that way I can pickup some small locks and keep it locked shut. Im not to worried about my 2 oldest but in around 7 months to a year our youngest will be able to reach that bottom door so I do plan on having it lock some how.
Also there is enough plexi that when the door is done I think I'm going to cut a piece to fit the whole floor of the bottom chamber, then I will just put the heat tape under that. I am also thinking about later picking up another piece of plexi to do the same for the upper chambers. I'm not sure if I will do it for the upper chambers, but its a thought.