The Clark family has been active in the building products industry for more than 60 years. George and Bob Clark started their career in aluminum siding industry in the 1950s and ultimately founded Clark Brothers Metal Fabricators in 1971, where they manufactured residential building products at plants in Michigan and Florida. Clark Brothers was acquired in 1984 by World Mark Corp., where George and Bob stayed on as management until 1990. The brothers then left the company and founded Quality Aluminum Products, Inc. In 1991, they opened a facility in Flat Rock, Michigan, and currently operate two manufacturing sites, including a 110,000 sq. ft. facility in Hastings, Michigan.