I don't think you have to worry about the bearing at all. As long as you don't get fat and go to the sky, there is nothing wrong with ordinary chairs. Regarding the load-bearing of IKEA chairs, I took a look at my chair, because my chair was bought in IKEA. I remember there will be instructions when I buy it. It says that the bearing capacity seems to be 1 10 kg. So it is more suitable for the general population.