I ordered this water bottle holder for my office building. I decided on the larger 8 bottle holder rack since we usually get 6 or 8 bottles delivered each time the water truck comes. The assembly was crazy long! There were over 60 screws alone! You really need to screw each one in by hand, and not use a drill, they are easy to strip because the threads aren't the best- so be CAREFUL! All in all it took my very mecanically inclined partner an hour to get the unit fully assembled! It was not difficult at all, just time consuming. The end result is perfect, and exactly what my office needed to get our 5 gallon bottles off the floor! Highly recommended if you don't mind a long, but easy assembly time.