the directions showed that the cabinet should be laid on its side once the back panels are locked in place. then you placed the remaining side on to the panels and lock it in. Unfortunately if you happen to bump the free stand pieces while putting the other side on they fall forward and break off chunks of pressed wood.  I had to glue and brace the repaired pieces. Also check for future sells possible on products. I bought this in April for 1700.00 and it went on sell for $300.00 less  last month. called and of course they dont give credit or anything for this. I was told its the product company who discounts.  Also the cam locking  screws dont lock tight enough and if you turn too hard they can break. so the joining sides and back have a slight opening in some areas. I should have taken photos of the broken press wood before I glued it back together. But Im expecting family and needed to finish the bed.