This is a piece of junk.  I had another one like this at my old house and never had an issue.  The instructions were awful and half the parts were not labeled well.  This thing leaks on the patio furniture EVERYTIME it rains.  We have even tried flex seal on the roof.  I wasted my money and now I am stuck with it.  Never again.  Don't waste your time or hard earned money.  Took me and my husband 4 hours to put together.