{"id":58033,"date":"2026-08-16T11:35:00","date_gmt":"2026-08-16T11:35:00","guid":{"rendered":"https:\/\/www.furnitureinfashion.net\/blog\/what-length-is-a-king-size-bed\/"},"modified":"2026-08-16T11:35:00","modified_gmt":"2026-08-16T11:35:00","slug":"what-length-is-a-king-size-bed","status":"publish","type":"post","link":"https:\/\/www.furnitureinfashion.net\/blog\/what-length-is-a-king-size-bed\/","title":{"rendered":"What Length Is a King Size Bed?"},"content":{"rendered":"<p>A UK king size bed is 200cm long, which converts to 6ft 6in. The mattress measures 150cm x 200cm, so the length is the same as a super king and 10cm longer than a standard single or small double. That extra length is the reason many taller sleepers move up to a king even when width is not the issue.<\/p>\n<p>The figure to remember is that 200cm is the maximum length across all standard UK sizes. A king, a super king and a standard double all share it. If you need more than 200cm, you are looking at extra long or custom made frames rather than a different standard size.<\/p>\n<h3>Why the Length Matters More Than People Expect<\/h3>\n<p>Length rather than width is the most common source of discomfort in a bed. A sleeper of 6ft, or 183cm, on a 190cm mattress has only 7cm of clearance at head and foot combined. Add a pillow and the margin disappears, which is when feet start pressing against the footboard.<\/p>\n<p>The general guidance is to allow at least 10cm to 15cm more mattress length than your height. On a 200cm mattress, that comfortably accommodates anyone up to around 185cm to 190cm. Above that, a footboard becomes a genuine nuisance and an open ended frame is worth seeking out.<\/p>\n<p>Pillow depth reduces effective length too. A deep pillow can take up 15cm of the mattress before you have even lain down. If you sleep on two pillows or prefer a thick memory foam design, factor that in when judging whether 200cm is enough.<\/p>\n<h3>Frame Length Versus Mattress Length<\/h3>\n<p>The 200cm figure describes the mattress. The external length of the frame is always greater, and how much greater depends on the design.<\/p>\n<p>A frame with a padded headboard and a solid footboard can add 15cm to 25cm to the overall length, giving an external footprint of 215cm to 225cm. Wooden frames with substantial posts sit at the higher end. Slim metal frames with an open foot end add the least, sometimes as little as 5cm.<\/p>\n<p>This distinction matters when a bed sits between two walls or in an alcove. Measuring the alcove against the mattress size rather than the frame size is one of the most common ordering mistakes. Always take the external dimensions from the product specification.<\/p>\n<p>Ottoman frames need extra thought again, because the lifting base swings up and out at the foot. Even where the frame fits the alcove, you need clearance above and in front for the mechanism to operate.<\/p>\n<h3>Planning Room Depth Around a King<\/h3>\n<p>With a 200cm mattress and a frame that may run to 220cm, the room needs to accommodate the bed plus walking space at the foot. Allow 60cm to 75cm of clear floor beyond the foot of the bed if you need to walk past, which means a room depth of around 2.9m for comfortable access.<\/p>\n<p>Where depth is tight, positioning the bed with the foot facing an open doorway or a bay window can work, since you gain circulation from the adjoining space. Placing it foot on to a wardrobe rarely works, because you then need the wardrobe door clearance as well.<\/p>\n<p>Bay windows deserve special attention. The recess often looks like it will swallow the head of the bed, but low sills and radiators beneath them frequently prevent a headboard sitting flush. Measure from the wall face rather than the back of the recess.<\/p>\n<p>For rooms where the depth simply will not accommodate a full king frame, a divan base with a floating headboard removes the footboard entirely and reclaims 15cm to 20cm. Our range of <a href=\"https:\/\/www.furnitureinfashion.net\/king-size-wooden-beds\/\">modern king size wooden beds UK sale<\/a> includes both footboard and open foot designs, so it is worth comparing external lengths directly.<\/p>\n<h3>Bedding, Mattresses and Length<\/h3>\n<p>King bedding is cut for a 150cm x 200cm mattress. Fitted sheets need to match both dimensions, and a sheet made for a 190cm double will not stretch to a king. Duvets for a king are typically 225cm x 220cm, which is square enough to be reversible in either direction.<\/p>\n<p>Mattress depth affects fitted sheets as much as length does. Deep pocket sprung and hybrid mattresses can run to 30cm, and standard fitted sheets with a 25cm skirt will pull off the corners. Look for deep fitted sheets where the mattress is over 25cm thick.<\/p>\n<p>Mattress protectors follow the same rule. Getting the depth right stops the protector bunching, which is the usual cause of that ridge you can feel through the sheet.<\/p>\n<h3>Choosing Between a King and a Super King<\/h3>\n<p>Since a king and a super king are both 200cm long, the choice between them is purely about width. A king is 150cm and a super king 180cm, which gives each of two sleepers 75cm or 90cm respectively.<\/p>\n<p>If you are considering the upgrade for length reasons, it will not help. Look instead at frames marketed as extra long, or at continental sizes, which sometimes run to 210cm or 220cm. Bedding for these is harder to source in the UK, so check availability before committing.<\/p>\n<p>If width is the real issue and the room can take an extra 30cm plus walkway, the super king is the meaningful step up. Where floor space is limited, a king with proper circulation space around it usually makes for a more comfortable room than a super king squeezed in with 40cm walkways.<\/p>\n<h3>Fitting Furniture Around a King Size Bed<\/h3>\n<p>The length of the bed determines what you can place along the side walls. A 200cm mattress in a frame running 215cm leaves little room for a chest of drawers alongside it in a standard UK bedroom.<\/p>\n<p>Where the wall beside the bed is the only run available, narrow furniture is the answer. A tall chest occupies less wall than a wide one for the same storage volume, and our <a href=\"https:\/\/www.furnitureinfashion.net\/wooden-chest-of-drawers\/\">modern wooden chest of drawers UK sale<\/a> range includes upright designs made for this situation.<\/p>\n<p>Bedside cabinets should be chosen for height as much as width. The top surface ideally sits level with the mattress top, so a deep mattress on a high frame needs a taller cabinet than a low platform bed does. Comparing options in our <a href=\"https:\/\/www.furnitureinfashion.net\/bedside-cabinets\/\">bedside cabinets UK sale<\/a> selection against your finished mattress height avoids the awkward reach down.<\/p>\n<p>At the foot of the bed, a blanket box or bench can turn dead space into something useful, though only where you have enough depth left to open a lid. In a tight room, a wall mounted rail does the same job with no floor footprint.<\/p>\n<p>Our full <a href=\"https:\/\/www.furnitureinfashion.net\/beds\/\">modern beds UK sale<\/a> range lists external frame dimensions alongside mattress sizes, which makes checking the fit straightforward. At <a href=\"https:\/\/www.furnitureinfashion.net\">Furniture in Fashion<\/a> you can shop modern furniture for every room, with free delivery to most UK mainland postcodes.<\/p>\n<h3>Frequently Asked Questions<\/h3>\n<p><strong>How long is a UK king size bed in feet?<\/strong><br \/>200cm, which is 6ft 6in. The width is 150cm, or 5ft.<\/p>\n<p><strong>Is a king size bed longer than a double?<\/strong><br \/>No. A standard UK double is also 200cm long. The difference is width, with a double at 135cm and a king at 150cm.<\/p>\n<p><strong>What is the longest standard UK bed size?<\/strong><br \/>200cm, shared by doubles, kings and super kings. For anything longer you need an extra long or custom frame.<\/p>\n<p><strong>How tall can you be for a 200cm bed?<\/strong><br \/>Allowing 10cm to 15cm of clearance, a 200cm mattress suits sleepers up to around 185cm to 190cm comfortably. Taller sleepers should look for open foot frames.<\/p>\n<p><strong>Does the frame add to the 200cm length?<\/strong><br \/>Yes. Depending on the headboard and footboard design, expect an external length of 205cm to 225cm. Always check the product specification.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>A UK king size bed is 200cm long, or 6ft 6in, with a mattress measuring 150cm x 200cm. That length is shared with doubles and super kings, making 200cm the maximum across all standard UK sizes. This guide explains why length rather than width is&#8230;<\/p>\n","protected":false},"author":4,"featured_media":58034,"comment_status":"","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[22],"tags":[5699,5736,23,5737],"class_list":["post-58033","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-bedroom-furniture","tag-bed-length","tag-bed-sizes-uk","tag-bedroom-furniture","tag-king-size-bed"],"acf":[],"post_mailing_queue_ids":[],"_links":{"self":[{"href":"https:\/\/www.furnitureinfashion.net\/blog\/wp-json\/wp\/v2\/posts\/58033","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=58033"}],"version-history":[{"count":0,"href":"https:\/\/www.furnitureinfashion.net\/blog\/wp-json\/wp\/v2\/posts\/58033\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.furnitureinfashion.net\/blog\/wp-json\/wp\/v2\/media\/58034"}],"wp:attachment":[{"href":"https:\/\/www.furnitureinfashion.net\/blog\/wp-json\/wp\/v2\/media?parent=58033"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.furnitureinfashion.net\/blog\/wp-json\/wp\/v2\/categories?post=58033"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.furnitureinfashion.net\/blog\/wp-json\/wp\/v2\/tags?post=58033"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}