More Families Building Their Own Tornado Shelters When deadly twisters chewed through the South and Midwest in 2011, thousands of people in the killers' paths had nowhere to hide. Now many of those families are taking an unusual extra step to be ready next time: adding tornado shelters to their homes. A year after the storms, sales of small residential shelters known as safe rooms are surging across much of the nation, especially in hard-hit communities such as Montgomery and Tuscaloosa in Alabama and in Joplin, Mo., where twisters laid waste to entire neighborhoods. Manufacturers can barely keep up with demand, and some states are offering grants and other financial incentives to help pay for the added protection and peace of mind. Tom Cook didn't need convincing. When a 2008 tornado barreled toward his home in rural southwest Missouri, Cook, his wife and their teenage daughter sought refuge in a bathroom. It wasn't enough. His wife was killed. Cook moved to nearby Joplin to rebuild, never imaging he would confront another monster twister. But he had a safe room installed in the garage just in case. On May 22, Cook and his daughter huddled inside the small steel enclosure while an EF-5 tornado roared outside. They emerged unharmed, although the new house was gone. "It was blown away completely - again," he said. The only thing standing was that storm room. Generations ago, homes across America's Tornado Alley often came equipped with storm cellars, usually a small concrete bunker buried in the backyard. Although some of those remain, they are largely relics of a bygone era. And basements are less common than they used to be, leaving many people with no refuge except maybe a bathtub or a room deep inside the house. The renewed interest in shelters was stirred by last year's staggering death toll - 358 killed in the South and 161 dead in Joplin. So far this year, more than 60 people have perished in U.S. twisters. Safe rooms feature thick steel walls and doors that can withstand winds up to 250 mph. They are typically windowless, with no light fixtures and no electricity - just a small, reinforced place to ride out the storm. Costs generally range from $3,500 to $6,000. Sizes vary, but most hold only a few people. They can be bolted to the floor of a garage or custom-fitted to squeeze into a small space, even a closet. Some are so small occupants have to crawl inside. A few are buried in the yard like the old storm shelters of the late 1800s and early 1900s. Before the twister devastated Joplin, the Neosho, Mo., safe room manufacturer called Twister Safe had four employees. Now it has 20. "Business has probably quadrupled, at least," owner Enos Davis said. We're selling 400 to 500 a year now, compared to maybe 100 before. Twister Safe's spike in business is even more impressive in Missouri, which does not offer grant money for safe rooms, opting to use its share of federal disaster money for community shelters. Missouri's choice spotlights a debate in states seeking better tornado protection: Is disaster aid better spent on safe rooms in individual homes or on larger public shelters designed to protect hundreds or thousands of people? The downside of public shelters is getting there. Even with improvements in twister prediction, venturing out into a rapidly brewing storm is perilous.