The International Door Association comprises 12 regions:

• Regions 1-9: United States
  1. Maine, Vermont, New Hampshire, Massachusetts, Connecticut, Rhode Island
  2. New York, New Jersey, Pennsylvania, Delaware, District of Columbia, Maryland
  3. Ohio, Kentucky, Indiana, Michigan, Illinois, Tennessee, West Virginia
  4. North Dakota, South Dakota, Minnesota, Wisconsin, Nebraska, Iowa, Kansas, Missouri
  5. Alaska, Washington, Oregon, Hawaii, Idaho, Montana, and all US possessions west of the continental United States
  6. Virginia, North Carolina, South Carolina, Georgia, Florida, and all US possessions in the Caribbean
  7. Oklahoma, Texas, Arkansas, Mississippi, Alabama, Louisiana
  8. Nevada, New Mexico, Wyoming, Utah, Arizona, Colorado
  9. California

• Region 10: Canada
• Region 11: International
• Region 12: Mexico