Bought a Grandio Elite 8x16 greenhouse on sale last December. I had a handyman assemble it in June. I needed a greenhouse to overwinter citrus plants During NewEngland winters. I thought this was a good choice. Turns out to be a bad choice. It is not weather tight at all. Told the customer service rep what I needed it for. She didn't advise me that this was not weather tight. I have no idea how to weatherize a barn style door. In addition the two automatic vent openers do not work. I. called three times and left messages in as many months for someone to return my call. No response. I emailed them too. No response. I'm out four thousand dollars for a greenhouse that I can't use for it's intended purpose. Really pissed. Do not buy from this company.