framing is not sturdy. We reinforced each connection (frame to connectors) with duct tape. We also added additional anchors and weights. I had the greenhouse assembled, with filled containers on shelves (10 lbs per shelf) and the entire unit buckled, collapsed and the plastic tore in several places- and was not salvageable- after 2 hours of 40km/hr winds.  A complete waste of time and money. It lasted 1 week.