Front load washers: are there any structural considerations to be made?

I am doing a laundry closet redesign (per my previous post) and I’m in a bit of a bend regarding machines. The area this will be in was “made” for older machines (‘80s house, second floor), and while I want a front loading washer, these machines are heavier than older machines, with one model I’m looking at around 200 lbs. Does anyone think/know if I’ll have any issues regarding the weight of the machine on the floor and I should start looking at lighter machines, or will I probably be fine? Does anyone have experience with front loaders on second floor areas regarding structural considerations?