Assembly took two people (man and woman, 60 year olds, good fitness) both working 10 hours. We worked 4 hours first day, 6 the second day in 90+degrees. 2 people were necessary for full assembly. Watch the short video. Most definitely sort and lay out all pieces. There is a screw that is screwed in once legs are connected. Shove some paper in the leg top (to be removed later) so that if screw or Allen wrench is dropped no disassembly is necessary. Yes I dropped the wrench and the paper saved a repeat. Also don't tighten completely until all is fitted. It would have been nice to have it Leroy stated the ie onrete screw for mounting. This replaces 2 extra large offset umbrellas for shade. Really, really nice for us! Love the mosquito netting (really buggy year). We are hoping to buy a winter cover.