temporary garage

My brother and I bought one from Costco to cover my dad's '70 cuda that was sitting outside. The first winter it blew about 6 houses away in the wind and got completely destroyed. We bought another identical one and tied a cinder block under each post to raise it a little along with 1 sandbag per post to help keep it down and it sat outside in the elements for about 6 or 7 years before we were able to get decent interior storage for the cuda. The 2nd one held up about as good as we could have expected and it might have had a couple more years of life left in it but was definitely showing its age after that time.
I don't remember the particular brand but we also bought it about 20 years ago (wow time flies)