Very difficult to assemble, missing pieces (side rails to trundle bed) and other production errors. Many of the pre drilled holes were not drilled properly, some were not deep enough ( one corner of top bunk sat almost an inch off of the bottom), some were drilled completely through and the wood dowels just fell out, and others were drilled in the wrong spot. Very disappointed with this item,  Wayfair customer service has been excellent trying to help get all issues resolved without us having to disassemble the entire unit for return.