Since the item is quite heavy we hired an assemble service man from wayfair so heres the scenario. At first, I thought the handyman is just too slow to assemble the item but then we found our that the iten is quite hard to assemble even with us so I told him to take his time so that he could not missed any part of the corners. plus we found out that he was just taking an extra care of our  deck floor and the item. ) COOL!