a working garage door. That will no doubt still be standing after the house blows away. It's THAT heavy.
You wouldn't believe it. It was the only part of the house that wouldn't pass muster when we had the FL wind inspection, so we bought
"the best" It is steel, insulated, triple layered, and reinforced. It weighs (accdg to shipper) 800 lbs. The old opener wouldn't work.
next thime there are winds, hide behind that door!