Took 3 people 6 hours to assemble all but the roof - but they were a 50 yr old woman, a 73 yr old woman, and a 71 yr old man. Added my 34 yr old sister to the mix to put the roof on and it took 4+ hours, but you have to deduct 1 hr for the 42 degree weather and frozen fingers, and another hr just for the arguing and control issues. Really sturdy and tight as a drum though! No leaking whatsoever. DO NOT SKIP HAVING A LEVEL BASE!