I watched people put this up and they said that they did it alone or with one other person. Don't believe them. I love the structure but it took 4 people to put the roof on. The roof was a bit of a pain, 2 of us had to keep measuring and aligning the four corners to get the roof square. 3 days if you don't have at least 2 and preferably 4 people and are unable to dedicate a full day or 2. But once finished it is a great structure. Glad I got it, even with all of the minor aggravation. One other note, the young lady I talked to from Customer service was fantastic. 2 of the wood pieces and a bolt were broken and when I called to get them replaced and she helped and got me the replacement pieces the next day. She is an asset to your company.