Update by user Feb 12, 2019 VersaTube is trying to make it right for me now. VersaTube has since contacted me. They were able to offer me $200 for the seal of engineer to make it right. They have also sent me additional crossmembers for wind load in my city, at no additional charge. Thank you for working with me VersaTube Original review posted by user Jan 29, 2019 Buyer Beware= I bought a VersaTube 20x20 carport over 2 years ago. I was not aware we needed a seal of engraining for something that comes in a box from Lowes or any retailer. My carport is not touching any part of my house or structure. I got sighted from the city saying I could no even get a permit for the VersaTube unless I have the seal of engraining. I thought ok called VersaTube $920 for a seal of engraining. It's not done at $920 then I have the cost of the permit too.