250kg is quite big for a human, but certainly not a big load for a building. Furniture weighing over 250kg is not unreasonable. I'm looking at a couch with foldout bed, side cabinet and fridge that probably weigh more than that.
Also, engineering standards should see a floor be able to hold an order of magnitude more on the same floor than just one morbidly obese person.
Also, engineering standards should see a floor be able to hold an order of magnitude more on the same floor than just one morbidly obese person.