5m
5 m x 3 m = 15m2
15 meters squared is the area of the room. You find area by multiplying the length of the room times the width. The result is square meters or feet.
In Sweden the building code stipulates that bathroom doors must open out (if the bathroom is smaller than 15m2 ) and that any lock on the door must be able to be opened (with a special key if necessary) from the outside.
15 squar metres, 3mx5m=15m2 A room 3 meters by 5 meters has an area of 15 square meters (3 m x 5 m = 15 m2).