Frank L. Corrado Sr., 67, the president of Corrados' Inc., an interior decorating firm founded by his father, died Tuesday at George Washington University Hospital after a heart attack.

Mr. Corrado was born in Washington and graduated from McKinley Technical High School in 1931. During the 1930s, he worked for the Federal Housing Administration while attending night classes at Benjamin Franklin University, where he earned a degree in commercial science in 1941. About 1940, he joined Walker & Dunlop, a mortage banking firm.

During World War II, Mr. Corrado was a Seabee in the Navy and saw duty in the Aleutian Islands and on Guam.

After the war, he returned briefly to mortage banking and then joined the family decorating business about 1947. In 1973, he became president of the company. Corrados' has done work at the White House under the Nixon and Carter administrations, at various embassies, at the Federal Reserve Board, at the headquarters of the AFL-CIO and at the Capital.

Mr. Corrado, who lived in Bethesda, was a member and past grand knight of the Rock Creek Council No. 2797 of the Knights of Columbus and was a charter member of the Bethesda-Chevy Chase Lodge No. 2357 of the Elks. He also was a member of the American Legion and of the parish of the St. Jane de Chantal Catholic Church in Bethesda.

His wife, the former Ann Keilhack, whom he married in 1948, died last year.

Survivors include five sons, Frank . Jr., of Atlantic City, N.J., Peter, of Des Moines, Iowa; Robert, of Kensington, Michael, of Gaithersburg, and Joseph, of Rockville; two sisters; Ann Copeland of Rockville, and Rose deHuttich of Mexico City, and three grandchildren.

The family suggests that expressions of sympathy be in the form of contributions to Providence Hospital, Washington, D.C.