The great thing about Schwinn 470 is you don’t have to assemble it from scratch. Most of the machine comes pre-assembled and the tool kit is included in the package. So all you have to do is to add some (not too small) details and make sure that it’s perfectly adjusted for use. All in all, it might take 1-3 hours. I’d say that’s normal for an exercise machine like this as you need to be very careful when putting it together.