Room numbering Storey

in modern buildings, large ones, room or apartment numbers tied floor numbers, 1 can figure out latter former. typically 1 uses floor number 1 or 2 digits appended identify room within floor. example, room 215 15th room of floor 2 (or 5th room of floor 21), avoid confusion 1 dot used separate floor room (2.15 refers 2nd floor, 15th room , 21.5 refers 21st floor, 5th room) or leading 0 placed before single-digit room number (i.e. 5th room of floor 21 2105). letters may used, instead of digits, identify room within floor—such 21e instead of 215. odd numbers used rooms on 1 side of hallway, numbers rooms on other side.

an offset may used accommodate unnumbered floors. example, in building floors labelled g, m, 1, 2, ..., 11 , 12, fourth room in each of floors numbered 104, 114, 124, 134, ..., 224 , 234, respectively — offset of 110 in floor numbers. trick used make floor number less obvious, e.g. security or marketing reasons.

in buildings numbered rooms, in eastern european example, uk-like g, 1, ... floor numbering used, rooms numbered 200 on first floor (above ground floor), 300 on 2nd floor, , on.

portugal

in portugal, rule (official standard) is:

these universal rules simplify finding apartment in building, particularly blind people, not need ask given apartment is.