I received my 2 Utility Carts in great condition.  They were very easy to assemble but remembered one review stating the two lengths of the screws.  I right away put the screws according to their length in one pile.  After that I wanted each cart at the tallest and extended the poles before putting the shelves in.  Was an easy put together after that.  I absolutely love them.  Have a sewing machine on one and serger on the other.  Price was right and they are very sturdy, love them.