A standard UK double bed has a mattress of 135cm wide by 190cm long, which converts to 4ft 6in by 6ft 3in. The frame is larger: most double frames measure between 140cm and 150cm wide and 195cm to 205cm long, depending on how thick the side rails are and whether there is a footboard.
That difference between mattress and frame is the reason a double bed sometimes fails to fit a space that looked wide enough on paper. When you plan a room, work with the frame figures and treat 145cm by 200cm as a realistic footprint for a standard double.
The UK range is easier to remember when you see it laid out. A small double, sometimes called a three quarter bed, is 120cm by 190cm. A standard double is 135cm by 190cm. A king is 150cm by 200cm. Length only increases at king size, so a taller sleeper gains nothing by moving from a small double to a standard double.
Width is where the difference is felt. Two adults in a standard double have 67.5cm each, which is less than a single mattress gives one person. A small double reduces that to 60cm each, which is workable for occasional use or for one adult who wants more room than a single offers.
A double bed suits most UK second bedrooms and many main bedrooms in terraced and semi detached homes. A room of roughly 2.7m by 3m allows a double with reasonable space on both sides. Below that, the bed usually has to sit with one long side against a wall, which means one person climbs over the other.
Leave at least 60cm on each access side and 50cm at the foot. If the room has a chimney breast, the alcove beside it is often close to 140cm wide, which is worth measuring precisely because a double frame can be a few centimetres too wide for it even when the mattress would fit.
Material sets the tone of the room more than any other single choice. Upholstered frames are quiet and soft in a room with hard flooring, and they suit neutral schemes where you want the bed to feel restful rather than architectural. Our double fabric beds UK sale range covers slim low frames as well as designs with deeper padded headboards.
Wooden frames feel sturdy and forgiving of everyday use, and they age well in a household where the bed sees a lot of activity. Browse our modern double wooden beds UK selection if you want the bed to sit alongside timber wardrobes or drawers. Metal frames take up the least visual space, which helps a smaller double bedroom feel more open, while high gloss finishes bounce light around a darker room.
Underneath the mattress, doubles usually use one of two systems. Sprung slats have a slight upward curve and flex under load, which softens the feel of a firm mattress. Solid platform bases give even support with no flex and suit memory foam and hybrid mattresses.
Check the centre support. A double frame should have a central rail with at least one leg to the floor, since without it the slats can bow over time. Slat gaps of around 5cm to 7cm are typical, and wider gaps than that are not ideal for foam mattresses because the material can dip between them.
Double mattresses range from about 18cm to over 30cm deep. The depth changes the height you sit at, how the bedding drapes and how the mattress looks inside the frame. If you like to sit on the edge of the bed to put shoes on, a finished mattress top of around 60cm is comfortable for most adults.
Match the depth to the frame rails. A shallow mattress inside a frame with tall rails will feel like it sits in a trough, while a very deep mattress on a low frame can look top heavy. Depth is listed on every product in our mattresses UK sale range, so it is straightforward to plan.
A UK double duvet is usually 200cm by 200cm, and fitted sheets are cut for a 135cm by 190cm mattress. Mattresses over roughly 25cm deep need a fitted sheet with a deeper skirt or the corners will pull off during the night.
Beware of continental sizing. A European double is often 140cm by 200cm, so bedding made for that size will be slightly loose on a UK double and a UK fitted sheet will be too short for a European mattress. Check the centimetre figures rather than relying on the size name.
The area under a double bed is nearly two and a half square metres, which is worth using in a UK home. Drawer beds give quick access and suit rooms where there is clear floor down at least one side. Ottoman beds hold more because they use the full base area, but they need clear space above the bed to lift.
If the bed itself has no storage, a blanket box or ottoman at the foot of the bed adds closed storage in a footprint that would otherwise sit empty. It also gives somewhere to place a throw or cushions at night, which keeps the bed usable rather than decorative. You will find bedroom pieces alongside our wider home collections at Furniture in Fashion.
In an average UK double bedroom the bed takes a large share of the floor, so everything around it should be scaled down rather than up. Bedside cabinets roughly level with the mattress top are easier to use and keep the arrangement visually calm. A pair looks balanced, but in a narrow room one cabinet on the access side is more practical than squeezing two in.
Wardrobes are the other big decision. Hinged doors need about 60cm of clear swing space, and if that clashes with the bed, sliding doors are the better answer. Keep the walking route from door to bed clear of anything with sharp corners, since that is the path used in the dark.
The most frequent error is measuring the mattress instead of the frame. The second is forgetting the door swing, particularly in small second bedrooms where the door opens inwards against the wall the bed wants to sit on. The third is not checking the route in, since a rigid divan base at double size can be difficult on a tight stair turn where a flat packed frame would pass easily.
One more worth noting: check the headboard height against sockets and radiators on the wall behind. A tall padded headboard can cover a socket completely, which is inconvenient if it is the one you use for lamps or charging.
A double works well for one person who likes room to spread out, and it remains the default choice for a guest room because it accommodates either a single visitor or a couple. For two people sleeping together every night it is workable rather than generous, since each sleeper has around 67.5cm of width, which is less than the width of a standard single mattress.
Length is the other consideration. At 190cm, a double is 10cm shorter than a king or super king. Anyone approaching 6ft tall will find their feet close to the end of the mattress, and that becomes more noticeable with a tucked in top sheet or a heavy blanket at the foot of the bed. Where length is the problem rather than width, a long single or a king are the usual answers.
Double bedding is sized against the 135cm by 190cm mattress, so a double duvet is typically 200cm by 200cm. That deliberate overhang is what stops the duvet pulling off one side during the night, and choosing a duvet closer to the mattress width tends to create exactly that problem.
Fitted sheets should be checked against mattress depth as well as footprint, particularly with deeper pocket sprung or hybrid mattresses. Mattress protectors follow the same rule. If you buy bedding from an overseas retailer, be aware that a full or queen labelled set is sized to a different standard and will not sit correctly on a UK double.
Yes for most couples, though each person has 67.5cm of width. If either sleeper moves a lot at night, a king at 150cm wide is noticeably more comfortable.
A small double is 120cm wide against 135cm for a standard double. Both are 190cm long, so the difference is purely width.
The mattress is 190cm long and the frame is usually 195cm to 205cm long once rails and headboard are included. Plan for 200cm of floor length.
Not properly. European doubles are commonly 140cm by 200cm, so the sheets are wider and longer than a UK double mattress needs.
Around 2.7m by 3m allows a double with usable space on both sides. Smaller rooms will still take a double, but usually with one long side against a wall.
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