Whirlwind Steel is a manufacturer of pre-engineered metal buildings and metal building components for the agricultural, comme ... rcial, governmental, industrial, institutional, residential and self storage markets. Originally founded as a power fan and louver company in 1955, Whirlwind has become one of the largest metal building manufacturers in the industry and currently operate four manufacturing facilities in Texas, Georgia, and Oklahoma with a combined size of over 350,000 square feet. read more