There were errors in the manufacturer's parts: pre-drilled holes in the metal framing and the wood shelves did not align. In one hole, we had to drill it larger so the bolt would even go in the hole. I ended up using a drill, hammer, clamps, screwdriver and the allen wrench. There were no pre-drilled holes on the top horizontal bar to attach the center vertical bars. We have to find a drill bit that will drill into metal to make our own holes. You don't actually see these things until you start to assemble. At that point, drilling holes seemed easier than trying to disassemble and return the item. One corner of the top shelf had been crushed in shipping. We decided to just let it go. It's just a TV stand... I can see why the price was low, compared to other similar pieces.