Defective product.  Board on the right had holes in the wrong places and misaligned grooves for inserting the backboard.  The two boards should be identical in order to fit together.  Instead, they are completely different.  Clearly a production error.  I attempted to drill my own holes, but self-made holes likely compromise stability and I’m not confident the dresser will hold up or last very long.  A shame because I bought two dressers to match, but I cannot wait for a replacement item and the process of having to return the large dresser and its even larger box through a mail carrier is even more difficult (I live in a city without a car).