I bought this about a month ago and assembled it with my son.  It took us about 8 hours.  You definitely need 2 people to assemble it.  It has been sitting on my concrete slab with still nothing in it.  My front doors did not meet to close.  I called the company and they said they would send two smaller channels for my doors and this will solve the problem.  Almost 20 days have gone by and still no channels.  Called again and they said they were on back-order.  Forget the back-order/ send me the channels from somewhere.  Other than this problem the shed looks very nice and seems it will last a long time.  However, it may last longer than me since it is not in use and who knows how much longer I will have to wait for the channels.