Assembly was not difficult, but somewhat awkward at times, working alone. There are 10 bolts with accompanying (1) washers and (2) little spring washers, or whatever they're called. It's easier if you slip the set of washers over the bolts before you start screwing everything down. There's a diagram to show you. Of the 10 bolts, four are the longest, four are medium in length, and two are the shortest. The four longest ones go in the corners to attach the front legs, and that's what you do first. All bolts are screwed in place with a little Allen wrench that is included with the chair. It works, but if they make a ratchet type of Allen wrench, it would be a lot quicker (and worth the purchase if you have a bunch of chairs to put together, in my opinion). So after you've got your front legs on, then you take the little wooden dowel that they give you, and that is inserted between the back of the seat cushion and the back of the chair. Then you kind of have to hold that in place, and get your other bolts started, to keep everything in place while you tighten it down. The four medium length bolts go in the corners to bolt in the back legs, and then those two shortest bolts go just to the inside of the back corner bolts. I don't even know if "bolts" is the right word -- LOL! They're great big screws, basically.