The Home Depot (or simply Home Depot) is an American retailer of home improvement, construction products and services. The Home Depot operates 2,248 big-box format stores across the United States, Canada, Mexico and China, with a 12-store chain. The Home Depot is headquartered from the Atlanta Store Support Center in Atlanta Store Support Center in unincorporated Cobb County, Georgia, in Greater Atlanta. In terms of overall revenue reported to the U.S. Securities and Exchange Commission, The Home Depot is the largest home improvement retailer in the United States, ahead of rival Lowe's, and the fourth largest general retailer. The store operates out of large warehouse style buildings averaging 105,000 ft (9,755 m) with megastores operating in larger facilities (the company's largest store, located in Union, New Jersey is 225,000 ft).