The whole house is warped. I have fixed things level and they do not look right at all compared to the rest of the house! LOL Dirt floor basement and tree trunks for the main joists. I figure it has been that way for 200 years leave it alone. What is amazing no rot or termites ay all! I was going to put a dehumidifier down there and then thought what will happen when it dries out? Bang, groan, pop, really warp!