2 pieces you set side by side.
Couple issues with bolts and metal in the way but finally got it all together took an hour screwing with a tiny tool. 2 of 9 bolts didn’t even line up. Suppose I could unscrew and align differently but forget it. Maybe just line up all bolts and tighten some before tightening all the way. Should have used an allen bit with a drill. 
Seems pretty cheap plastic wrapped around metal frame but sturdy. Cushions are decent and “fluffy”. We live just a few miles from the beach so we’ll see if these hold up to the salt air more than a year.