There will also be a door for every breaker box, and for every mailbox.
But most drawers have 4 wheels per drawer, and each rolling chair has 5 wheels. My dresser has 5 drawers and it's on wheels, so that adds 24 wheels to the count, without adding a single door. I still think the wheel are very far ahead, even in aparment buildings, even before taking gears, bobbins, and spools into account