Bought a year ago. This is clearly not designed for northern climates or where the winds are more than a gentle breeze. Within two months end panels had ripped, door had pulled out of J pipes which were then bent by the door lifting in the wind before I could get to it. Frames is supplied with nuts but no lock washers so slightest movement in the wind loosens nuts, they fall off and frame separates. Yes, I replace nuts with lock nuts but not until the damage was already done. Cover is shredded (in less than a year) and no replacement available except one that costs more than the entire garage.