I'm good a building stuff, but these chairs did actually take 30 minutes EACH as the instructions stated. The table took about 30 minutes too so it took a while to put together. I noticed that something didn't line up correctly when I put the first few chairs together, so I had to loosen them and fix that. The chairs are strong and comfortable and the table is strong. I've had it only a few weeks, so I can't speak to how well it holds up in the weather. I used a socket wrench to speed up the process and that helped. The chairs are on pavers and wobble a little. Put the chairs together on a level surface. I like the way it looks.