{"id":58093,"date":"2026-08-16T11:35:00","date_gmt":"2026-08-16T11:35:00","guid":{"rendered":"https:\/\/www.furnitureinfashion.net\/blog\/what-width-is-a-super-king-size-bed\/"},"modified":"2026-08-16T11:35:00","modified_gmt":"2026-08-16T11:35:00","slug":"what-width-is-a-super-king-size-bed","status":"publish","type":"post","link":"https:\/\/www.furnitureinfashion.net\/blog\/what-width-is-a-super-king-size-bed\/","title":{"rendered":"What Width Is a Super King Size Bed?"},"content":{"rendered":"<h3>The Measurement You Need<\/h3>\n<p>A super king size bed is 180cm wide in the UK, which is 6ft. The standard length is 200cm, or 6ft 6in. That makes it the widest bed size in mainstream British bedding standards, sitting 30cm wider than a king size and 45cm wider than a standard double.<\/p>\n<p>Put in terms of sleeping space, each person in a super king has 90cm of width, which is exactly the same as a UK single mattress. That single fact explains why couples who move up to a super king rarely go back. You are effectively each getting a full single bed&#8217;s width while sharing one mattress and one duvet.<\/p>\n<h3>Super King Compared With Other UK Sizes<\/h3>\n<p>The British ladder runs as follows. Single: 90cm by 190cm. Small double: 120cm by 190cm. Double: 135cm by 190cm. King: 150cm by 200cm. Super king: 180cm by 200cm.<\/p>\n<p>Notice that both king and super king share the same 200cm length. Moving from king to super king buys width only, not extra legroom. If your concern is height rather than shoulder room, a king already gives you the longer 200cm mattress, and going wider will not help. Some manufacturers do offer extra long variants, but they sit outside standard sizing and bedding becomes harder to source.<\/p>\n<p>The width step from 135cm to 180cm is substantial. It is the difference between each sleeper having 67.5cm and having 90cm. Anyone who shares a bed with a restless partner, a child who appears at 3am or a dog with opinions about territory will recognise why that matters.<\/p>\n<h3>How Much Floor Space Does a Super King Need?<\/h3>\n<p>This is the question that decides whether a super king is realistic. The mattress footprint is 180cm by 200cm, but the frame is always larger. Upholstered frames add padding on every side, often 8cm to 12cm per side. Wooden frames with visible rails add similar. Budget for an overall footprint closer to 200cm by 215cm.<\/p>\n<p>Then add circulation space. Allow 60cm minimum on both sides and at the foot so you can walk past, make the bed and open drawers. That points to a bedroom of at least 3.3m by 3.5m. In a room measuring 3m by 3m, a super king will physically fit but you will be shuffling sideways past the corners every day.<\/p>\n<p>There is also the matter of what else the room has to hold. A super king leaves little wall available for a chest of drawers or a dressing table. If the bedroom is your only storage, weigh that carefully. Many people solve it by choosing a frame with integrated storage, and our <a href=\"https:\/\/www.furnitureinfashion.net\/super-king-size-fabric-beds\/\">modern super king size fabric beds UK sale<\/a> include designs with lift up bases for exactly this reason.<\/p>\n<h3>Getting a Super King Into the Room<\/h3>\n<p>Width is the enemy of staircases. A 180cm mattress cannot bend, and a one piece super king mattress is genuinely difficult to manoeuvre around a half landing or through a loft hatch. Before ordering, measure the narrowest point of the route, including door frames, banister rails and the diagonal clearance on any turn.<\/p>\n<p>Frames are easier because they arrive flat packed and assemble in the room. Mattresses are the constraint. If access is tight, consider a zip and link mattress, which is two single mattresses that fasten together to form a super king. They pass upstairs individually and can be separated later if the room changes use, which is genuinely useful in guest rooms.<\/p>\n<p>Our <a href=\"https:\/\/www.furnitureinfashion.net\/super-king-size-wooden-beds\/\">modern super king size wooden beds UK<\/a> are supplied flat packed with clear fixings, which keeps the awkward part of the delivery to the mattress alone.<\/p>\n<h3>Bedding and Mattress Practicalities<\/h3>\n<p>Super king bedding is a distinct size and is not interchangeable with king. A super king duvet is 260cm by 220cm and a super king fitted sheet is cut for a 180cm mattress. Availability is good in the UK, though the choice of patterns is narrower than for double, and the cost per set is higher. Buying two fitted sheets and two duvet covers from the start avoids awkward wash days.<\/p>\n<p>Support underneath is not optional at this width. A super king base needs a centre rail with legs, and better bases have two supporting runs. Without adequate support the mattress will develop a trough down the middle within a couple of years, and no amount of rotating will fix it.<\/p>\n<p>Turning a super king mattress is a two person job. If you live alone or have limited mobility, look for a single sided mattress that only needs rotating head to foot rather than flipping. Our <a href=\"https:\/\/www.furnitureinfashion.net\/mattresses\/\">modern mattresses UK sale<\/a> listings state the required maintenance clearly, which is worth reading before you buy.<\/p>\n<h3>Designing a Room Around a Super King<\/h3>\n<p>A bed this wide becomes the architecture of the room, so lean into it rather than fighting it. Centre it on the longest uninterrupted wall and keep the surrounding pieces low and light. Tall wardrobes either side of a super king make a room feel like a corridor.<\/p>\n<p>Slim bedside cabinets work better than deep ones. Look for widths around 40cm to 45cm so they read as proportionate rather than squeezed. Wall mounted lights free up the surface entirely, which helps when the cabinet top is small. Our <a href=\"https:\/\/www.furnitureinfashion.net\/bedside-cabinets\/\">modern bedside cabinets UK sale<\/a> range includes narrow options suited to exactly this situation.<\/p>\n<p>Underfoot, a large rug placed so it emerges from beneath the bed on three sides visually anchors the whole arrangement and softens the scale. Two smaller runners either side achieve a similar effect in a tighter room.<\/p>\n<p>You can see how these pieces work together across the bedroom collections at <a href=\"https:\/\/www.furnitureinfashion.net\">Furniture in Fashion<\/a>, where frames, cabinets and storage are grouped by finish.<\/p>\n<h3>Is a Super King the Right Choice?<\/h3>\n<p>Choose a super king if the bedroom measures at least 3.3m by 3.5m, if two adults share it every night, and if undisturbed sleep matters more than floor space. It is also worth considering if children or pets regularly join you, because the extra width absorbs that without anyone losing sleep.<\/p>\n<p>Stay with a king if the room is between 3m and 3.3m, if you need wall space for storage, or if your access route makes a 180cm mattress impractical. A king in a well proportioned room is a better outcome than a super king in a cramped one.<\/p>\n<h3>Frequently Asked Questions<\/h3>\n<h3>Is a super king the biggest UK bed size?<\/h3>\n<p>It is the largest standard size sold in the UK at 180cm by 200cm. Larger emperor sizes exist but sit outside standard bedding sizing, so covers and sheets become harder to source.<\/p>\n<h3>Can a super king mattress go up a normal staircase?<\/h3>\n<p>Often it can, but tight half landings and narrow door frames cause problems. A zip and link mattress, made of two singles that fasten together, solves the access issue completely.<\/p>\n<h3>Will king size bedding fit a super king bed?<\/h3>\n<p>No. A king duvet and fitted sheet are cut for a 150cm mattress and will leave 30cm of a super king uncovered. Buy super king bedding specifically.<\/p>\n<h3>Does a super king bed need extra support?<\/h3>\n<p>Yes. A centre rail with legs is essential at this width to stop the mattress sagging in the middle. Properly built super king bases include this as standard.<\/p>\n<h3>What size room suits a super king bed?<\/h3>\n<p>Around 3.3m by 3.5m as a working minimum, allowing roughly 60cm of clear floor on both sides and at the foot for comfortable daily use.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>A super king size bed is 180cm wide and 200cm long in the UK, making it the widest standard British bed size and giving each sleeper the same 90cm of width as a full single mattress. This guide sets out how super king compares with&#8230;<\/p>\n","protected":false},"author":4,"featured_media":58095,"comment_status":"","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[22],"tags":[2389,1147,1354,2788],"class_list":["post-58093","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-bedroom-furniture","tag-bed-sizes","tag-bedroom-planning","tag-mattresses","tag-super-king-beds"],"acf":[],"post_mailing_queue_ids":[],"_links":{"self":[{"href":"https:\/\/www.furnitureinfashion.net\/blog\/wp-json\/wp\/v2\/posts\/58093","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.furnitureinfashion.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.furnitureinfashion.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.furnitureinfashion.net\/blog\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.furnitureinfashion.net\/blog\/wp-json\/wp\/v2\/comments?post=58093"}],"version-history":[{"count":0,"href":"https:\/\/www.furnitureinfashion.net\/blog\/wp-json\/wp\/v2\/posts\/58093\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.furnitureinfashion.net\/blog\/wp-json\/wp\/v2\/media\/58095"}],"wp:attachment":[{"href":"https:\/\/www.furnitureinfashion.net\/blog\/wp-json\/wp\/v2\/media?parent=58093"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.furnitureinfashion.net\/blog\/wp-json\/wp\/v2\/categories?post=58093"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.furnitureinfashion.net\/blog\/wp-json\/wp\/v2\/tags?post=58093"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}