I had a 65 gallon upstairs in the living room for a few years, took it down last fall when we had new carpet installed. If you plan on doing any floor work in the near future, do it before you set up the tank. It took longer to take the tank down & move the stand, tank, and related gear than it took to empty the rest of the furniture & pull out the old carpeting.
If you have any doubts whatsoever have a professional check it out. My house was built by the same builder my parent's house was built by, so I have a lifetime of familiarity with the building techniques & structural engineering used. I didn't think twice about putting a tank that size upstairs, I wouldn't hesitate to put a tank double that size up there.
Decades ago when houses were all a stick build they had a saying; when in doubt, build it stout. I've seen new houses built where I would be worried if the refrigerator would warp the floor, they engineer things to just barely get past code these days as a cost saving measure.
If you have any doubts whatsoever have a professional check it out. My house was built by the same builder my parent's house was built by, so I have a lifetime of familiarity with the building techniques & structural engineering used. I didn't think twice about putting a tank that size upstairs, I wouldn't hesitate to put a tank double that size up there.
Decades ago when houses were all a stick build they had a saying; when in doubt, build it stout. I've seen new houses built where I would be worried if the refrigerator would warp the floor, they engineer things to just barely get past code these days as a cost saving measure.