Armstrong World Industries, Inc. (NYSE: AWI) third quarter earnings rose 5% to $729.7 million, the increase driven primarily by residential wood flooring sales.

Armstrong World Industries Inc., a manufacturer of wood cabinets, floors and other building products, reported net income of $18.2 million for its first quarter ended March 31, up 34.8% from the first quarter of 2011.

Armstrong World Industries, Inc., a global leader in the design and manufacture of floors, ceilings, and cabinets, today reported first quarter 2012 results.

LANCASTER, PA -- Armstrong World Industries reported that its cabinet division posted second quarter net sales of $37.2 million, 4% below sales for the same period in 2009.