Average child size bedroom

What is The Average Size of a Child’s Bedroom?

Girls and boy’s bedrooms come in all sizes depending on terraced, semi detached or detached house or flat/apartment, although they tend to be smaller than a parents master bedroom. Son’s & daughters are staying longer in the family home as children save for a house deposit and this should be considered when looking at average child bedroom size for a new home for short and longer term.

There is no definitive child’s average bedroom size for a house or flat/apartment in USA, UK, although around 10’ x 12’ = 120 sq feet in UK and average size for USA 10’x 10’ = 100 sq feet (9.29 sq mt). Boy’s & girls bedroom size depends if an apartment or house/type, year built and differs from big city to small towns.

Child boys and girls average bedroom size

  • USA around 10’ x 10’ = 100 sq feet (9.29 sq mt) average size children’s bedroom 10’ x 12’ in UK appears to be considering the style of home and the build design in the modern era and older homes.
  • A child’s UK average bedroom 10’ x 12’ =120 sq feet (it’s not small) parents can put in a double, queen or single bed, wardrobe, study desk, bedside table and have floor space to move around comfortably, although only a small play area.
  • In kids small average USA bedroom size 10′ x 10′ = 100 sq feet (9.29 sq mt) you’ll fit a single/twin bed, standard bunk bed with a chest of drawers & wardrobe enough room to walk around, or a small double bed and drawer’s chest.
  • Older children 12+ years old would benefit from at least 11’ x 12’ = 132 sq meters single size bedroom space or teenagers sharing 14’x 13’ at least for double or single beds/bunk bed trundle plus drawers chest, wardrobe and homework study desk.

USA ceiling height for children’s bedroom on average is around 9 feet = 2.7432 meters which is a good clearance height for the majority of boy’s & girls. Kid’s bedrooms also usually have one smaller window compared to double bedrooms that have larger and sometimes 2 separate windows.

Bedroom size for a child

  • How big should a child’s bedroom be? The room should be large enough for all essential furniture, extra storage, appropriate for a child’s use, sharing or not. Additionally, enough space to play, move around comfortably and safely is essential.

You’re son and daughter’s bedroom will probably have a built-in wardrobe that’s not included in the average size measurement, although you may require an additional stand alone wardrobe for extra storage, especially if they’re sharing a room.

Apartments & houses in large cities in UK & USA from San Francisco, Los Angeles, New York, London, and Edinburgh have smaller bedroom sizes as the cost for a home would be very expensive for bigger rooms. In contrast small towns and more rural areas housing have been built with bigger bedrooms as total house cost is less to purchase.

Detached & semi detached houses on average have more generous size bedrooms compared to modern flats/apartment in both UK and USA.

I previously lived in a terraced house with 2 double bedrooms, the same size and layout of the rest of the street and area. Sometimes you find UK houses and flats that were built decades ago with the same size bedroom for all rooms for adults and children, though this is not common in the modern era.


Victoria Borodinova from Pexels

House and apartment different bedroom sizes

Living in a detached house compared to a flat/apartment in relation to bedroom size is generally different. Houses overall are designed & built with bigger bedrooms where apartments tend to give much more focus on living space to a lounge in modern style builds.

Large cities tend to have small bedroom sizes in general for apartments as it is more expensive to buy and up keep, also for houses child’s bedrooms are smaller than in towns and rural areas.

  • Bedrooms that are rectangular are better functionally by design and usability than square or quirky odd shape rooms. You’re daughter or son’s room could have a much better lay out and utilise all space available if choosing the right room shape. Fitting 2 double beds in teenagers shared bedroom of 14’ x 14’ = 196 sq feet with all they’re personal items would work.
  • Is 10’ x 10 big enough for a child’s bedroom? The room is pretty small, but adequate for a single kid or teenager. Functionally the room is large enough all age children from 6 months to 19 year’s old. With 2 teenagers sharing the room is too small to accommodate all their daily requirements, study and interests.
  • 10’ x 10’ = 100 sq meters children’s bedroom or 10’ x 12’ is suitable for younger kids sleeping in bunk beds alone or sharing, although doesn’t leave much space for playing. You also require having a wardrobe and chest of drawers for storage, you could use the height of the room instead of floor space to use additional storage space.

Think about the bed size you’re child requires sleeping comfortably, especially 6 feet teenagers. You’re son or daughter will require a larger bedroom if sharing and possibly full/double bed dimensions of 54″ W x 74″ L depending on child size requirements.

Bed sizes

  • Twin bed dimensions: 38″ W x 75″ L
  • Twin bed XL dimensions: 38″ W x 80″ L
  • Full/Double bed dimensions: 54″ W x 74″ L
  • Double XL bed dimensions: 54″ W x 80″ L
  • Queen bed dimensions: 60″ W x 80″ L

Older child or teenagers require more space and different style of bed to sleep in. 11’ x 12’ = 132 sq meters would accommodate two single beds, chest of drawers and wardrobe, although will be a bit cramped. Additional furniture desk storage space or use shelves on the walls around the bedroom.

Difference in bedroom size according to year built

In the past UK flats and houses were built with bigger room size in consideration, including bedroom size of kids and adults. In 1930’s double bedrooms averaged around 15.34 m2, 1960’s 15.05 m2, 1970’s 14.71m² and 2010’s average size 13.37m².

Double and smaller children’s bedrooms over the past decades have on average been built smaller than previous years in all styles of home from flats, detached, semi detached and terraced houses.

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