The Home Depot (referred to in some countries and often in colloquial speech simply as Home Depot) is an American retailer of home improvement and construction products and services. It operates many big-box format stores across the United States (including all 50 U.S. states, the District of Columbia, Puerto Rico, the United States Virgin Islands and Guam), all ten provinces of Canada, as well as Mexico. The company is headquartered at the Atlanta Store Support Center in Cobb County, Georgia, in Greater Atlanta. In terms of overall revenue reported to the U.S. Securities and Exchange Commission, the company is the largest home improvement retailer in the United States, ahead of rival Lowe’s. The store operates out of large warehouse-style buildings averaging 105,000 ft2 (9,755 m2) with megastores operating in larger facilities (the company’s largest store, located in Union, New Jersey is 225,000 ft2).