Our greenhouse came during the offseason and so we had not assembled it. To our surprise, when we open the box it did not contain some of the parts that we needed. When I called the company, they were very helpful in finding replacements. The only drawback was that the parts catalog must have been outdated or something, because they were telling me they were about to send me a plastic part. However, we had a steel frame. The customer service rep was incredibly helpful and had to check with their warehouse about the mix up, but she did manage to get the right parts ordered for me in the next few days. Everything fit just fine after we received our parts. Thank you