A UK double bed is 135cm wide by 190cm long. In imperial that is 4ft 6in by 6ft 3in. Those dimensions describe the mattress, and they are consistent across British retailers, which is why UK double bedding fits reliably from one shop to the next.
The frame is a separate matter. Depending on construction it will add roughly five to fifteen centimetres in each direction, so the space the bed occupies in your room is always more than 135 by 190.
Bed sizing is not internationally standardised, and the word double means different things in different markets. A UK double at 135cm is narrower than beds sold under the same name in some other countries.
This causes two practical problems. The first is bedding: a fitted sheet made for an overseas double will not sit properly on a UK mattress. The second is imported furniture, where a frame described as double may be built around a mattress size you cannot easily buy here.
The safeguard is simple. Ignore the name and read the centimetre measurements. If a listing does not give them, that alone is worth pausing over.
Here is the full set, so you can place the double in context. Single: 90cm by 190cm. Small double, sometimes called a three quarter bed: 120cm by 190cm. Double: 135cm by 190cm. King: 150cm by 200cm. Super king: 180cm by 200cm.
Two observations are useful. First, the length is 190cm for everything below king size, so moving from a single to a double gains you no extra legroom at all. Second, the width increments between small double, double and king are fifteen centimetres each, which is a modest number on paper but a noticeable one in practice when a bed is shared.
There is no official queen size in the UK range. Where you see the term used here it usually refers loosely to something between a double and a king, and the measurements need checking.
It does, and it is the most widely owned bed size in Britain. But be clear about what it offers: 67.5cm of width each for two adults. A UK single mattress is 90cm, so each person on a double has less room than a single sleeper.
For many couples that closeness is entirely comfortable. For light sleepers, or where one partner moves a lot, or where a child tends to arrive at six in the morning, the tightness becomes apparent. That is the main reason people upgrade to a king.
Height is the other consideration. At 190cm, a double suits sleepers up to roughly 185cm tall. Beyond that, feet reach the end and only a king or super king at 200cm resolves it.
UK housing stock includes a great many bedrooms that were not designed around modern furniture, so measuring carefully pays off.
Allow at least 70cm of clear walkway on any side you need to use, rising to 90cm where a wardrobe door swings into that space, and about 60cm at the foot to pass through. That puts the comfortable minimum room size at roughly 2.8 by 3 metres for a double with access on both sides.
Measure the wall at floor level, since skirting boards steal a couple of centimetres each side. Measure at both ends of the room too, because walls in older properties are seldom parallel. Draw the door arc on a sketch, and note where the radiator sits, because a radiator behind a mattress wastes heat and is not kind to the fabric.
Then measure the route in. A double mattress will usually flex around a stair turn, but a bed delivered assembled will not. Most frames arrive flat packed, though it is worth confirming rather than hoping.
The frame you choose changes the external dimensions and the way the room reads.
Metal frames are the most compact for a given mattress, since the sections are thin. Options across our modern double metal beds UK sale range suit narrow rooms for that reason, and an open frame lets light through, which helps a small space.
Timber frames feel more substantial and last well. The modern double wooden beds UK selection has heavier side rails, so allow more external width. Upholstered frames add the most padding and therefore the largest footprint, but they give the softest look and the most comfortable headboard for sitting up in bed.
Storage frames deserve a mention. An ottoman style bed lifts on gas pistons to reveal a full length void under the mattress. In a bedroom with no built in cupboard, that space handles spare bedding, suitcases and out of season clothes, and it costs you nothing in floor area.
Once the bed is placed, everything else has to respect the walkways. Slim modern bedside cabinets UK sale either side keep the room symmetrical without eating the gap you need to walk down. A matched pair does more for the calm of a bedroom than most other single changes.
For clothing storage, go upward rather than outward. A tall narrow chest holds as much as a wide low one on a smaller footprint. Where the room allows a wardrobe, hinged doors need swing clearance that a double bed often eliminates, so consider the space carefully before choosing.
A wall mounted mirror rather than a freestanding one saves floor area and bounces daylight around, which is worth doing in a north facing room. At Furniture in Fashion our modern bedroom furniture UK sale range covers beds, cabinets, chests and wardrobes with full dimensions listed, and free delivery to most UK mainland postcodes applies.
Fitted sheets for a UK double are cut for 135 by 190. Check the pocket depth as well as the size, because mattresses have become deeper over the years and a standard sheet will not stay on a mattress much over thirty centimetres.
A UK double duvet is 200cm by 200cm, which overhangs a 135cm mattress generously on both sides. Duvet size does not have to match mattress size, so if you and your partner compete for cover at night, moving up to a king duvet on a double bed is a straightforward fix.
If you have bought bedding overseas or moved from another country, the naming differences cause real confusion. An American full or double mattress is 137cm by 191cm, which is close enough to the UK double at 135cm by 190cm that duvet covers usually work but fitted sheets sit slightly loose.
European sizing is different again. A common continental double runs 140cm by 200cm, ten centimetres longer than a UK double and five wider. Bedding bought in France, Germany or Spain will therefore be too long for a British double, and the excess gathers at the foot of the bed rather than lying flat.
Australian doubles are 137cm by 187cm, marginally wider and shorter than ours. The practical lesson is the same across all of these: the word double means at least four different things depending on the country, so always check the centimetre figures rather than trusting the name on the packaging.
The measurement that catches people out is not the bedroom itself but the route to it. A 190cm mattress has to travel up the stairs, round the landing turn and through the bedroom door, and in Victorian and Edwardian terraces those turns can be tight.
Measure the narrowest point of the staircase, the width of the landing where it turns, and the door opening. Then check whether the bed arrives as a flat pack or assembled. Flat pack frames pose almost no delivery problem because the longest component is a side rail. Divan bases are the opposite: a solid double divan base is rigid and cannot be manoeuvred round a tight turn at all.
Split divan bases exist precisely for this reason, arriving as two halves that clip together in the room. Mattresses have some flex, but a deep pocket sprung double mattress is heavy and only bends so far, so it is worth asking whether a rolled or vacuum packed option is available if access is genuinely difficult.
Stay with a double if the room comfortably takes 135cm plus walkways, and if both sleepers are under about 185cm tall. Step down to a small double at 120cm if the room is genuinely tight and the bed is mainly for one person or occasional guests. Step up to a king at 150cm if two adults share nightly and the room can spare the width without blocking a door or a wardrobe.
The most reliable way to decide is masking tape on the floor. Mark out the external frame dimensions, not the mattress, then walk around it, open the door and pull out an imaginary drawer. Five minutes of that tells you more than any amount of reading.
135cm wide by 190cm long, which is 4ft 6in by 6ft 3in. These figures describe the mattress; the frame will be larger.
Often, yes. Bed naming is not standardised internationally, so always compare centimetre measurements rather than assuming that double means the same thing everywhere.
At 190cm it suits sleepers up to roughly 185cm. Anyone taller should look at a king or super king, both of which are 200cm long.
Around 2.8 by 3 metres gives comfortable access on both sides and at the foot. Smaller rooms will need one side against a wall, which makes bedmaking more awkward.
Yes. UK double bedding is cut for 135 by 190. Just check the fitted sheet pocket depth if your mattress is deeper than about thirty centimetres.
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