… Blown over easily by wind .. even with using tie down …Best to be used in area of yard protected by wind  but still in  the sun . Plastic was thick but after a few blow overs  …it  tore as expected … also be careful of wire shelving  cannot put heavy plants on shelving .. This was  great for starting out my garden seedlings  while it was still too chilly outside ..the greenhouse definitely  retained the heat inside of plastic