An average interior door is usually about 30 to 32 inches wide ; a standard exterior/front door is often about 36 inches wide.

Common sizes

  • Interior doors: 30–32 inches is typical, with 32 inches especially common.
  • Exterior doors: 36 inches is the most common width.

In feet

  • 30 inches = 2 ft 6 in
  • 32 inches = 2 ft 8 in
  • 36 inches = 3 ft

Quick note

Door sizes can vary by home, room, and country, so the exact width depends on whether you mean an interior room door or a front door.

Would you like the usual door height too?