I suggest an electric screw driver and an allen wrench attachment, and 2 people to put them together. Otherwise plan on about 45 minutes and a lot of muscle. They look great, but on Christmas dinner my dad said out loud, "these chairs are very comfortable" and leaned back in one, and it made a couple loud creaking sounds. It didn't break, and I'm guessing (and hoping) it was just the wood settling into place but it was a little embarrassing.