Hi -- I have an old maple that needs to come down, and I'm thinking of leaving a good-sized (6-foot) stump, and using it as the base for a treehouse for my daughter. I've looked online and in books but can't find any references to building atop a stump. Since it's not a living tree, and won't be growing or moving in the wind, I'm thinking I don't have to worry about lag bolts, TABs, etc. On the other hand, are there things I need to think about if I'm fastening supports into "dead" wood? I would think the presence of the treehouse on top might protect the stump from some exposure, rotting, etc.
Any ideas or suggestions?