The metal frame of this table is not made well and so it doesn’t align properly.  When you bolt together all the pieces as instructed, the frame is completely misaligned.  Thusly the top of the table is also misaligned so there is a huge misalignment of the two top pieces right in the middle. Yes, the top is not one piece but two that meet up half way in the middle of the table.  Also, the top rail didn’t sit flush on the table top surface.  Seems like the tolerances from this manufacturer and not very well controlled.