I bought two green houses. One of the heavy duty and one of the lighter one. I put both up. The next day the lighter one was in pieces. I secured them both the same way with cinder blocks all the around the fabric. I have to say that both of them are nice but just make sure if you buy the lighter one it’s protected from wind. As far as the quality. The lighter duty one is definitely worth the money. You get what you pay for. Everything about it is light duty. As far as the heavy duty one the poles that make up the structure are galvanized metal compared to the tin poles with spot welded joints. The heavy duty GH definitely stood up to the wind. That because of the metal structure instead of the tin materials they use on the light duty GH. I have to say it was easy to put up. The instructions were well done and easy to understand. The GH fabric is nice and solid. You can tell the difference between the lighter and the heavy GH cover. If your gonna set it up in a protected back yard the lighter GH will be just fine but if not go with the heavy GH duty green house.