I thought it would all stabilize itself. I have to reposition track every so often on my part against a brick wall that I hung from joists. I can't screw the O gauge track to the wood shelves because my basement ceiling is so low, to get it above the doors I don't have much clearance to work on it. The other walls have wood paneling and I just used metal shelf brackets to hold that up. It was a literal pain in the neck to put it up, but it was all I could do when the kids were still in the house.
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