The canopy arrived in two boxes on two days. We assembled it over two days, first by putting all the posts and cross beams together inside, and then constructing it outside the next day. It probably took three or four hours over all. This is definitely a two-person job, but the more manpower you can gather, the better while standing it up.  An extra Allen wrench comes in handy too. Be sure you put all the posts and cross beams on facing the correct way...we made a mistake and had to disassemble one part. Overall, it was pretty easy to put together and I think we are going to love it. I just hope the canopy lasts a few years!