[KF5BET]

We were visiting some old college buddies up in OK this past November and they had to show us their storm shelter. They had a company come in and put one in there garage.
it was a steel shelter with a sliding door. it was installed under the slab and you walked down into it. Probably 4' x 8' and about 5' deep. They had an emergency light/radio, a bench, a come-a-long (to open the door if something was against it) and some wine...

One of the things they did which impressed me was they registered it with the local authorities so they would not be stuck in there if the house collapsed around them during a storm.