Press and Data: UK King Size Bed Prices and Frame Sizes

King Size Bed UK publishes two original data sets about king size beds in the UK: a price study of 7,204 king bed frames and 3,691 king mattresses, and the outside sizes of 91 king size frames. Journalists, bloggers and researchers can quote them and reuse them, with a credit link to the source page.

Key findings: king size bed prices in the UK

Source: How Much Is a King Size Bed? UK Prices in 2026. Prices read on 13 October 2026 at 160 UK online shops (frames) and 162 shops (mattresses), VAT included.

• The median king bed frame cost £499; half cost between £373 and £720 (7,204 frames, 160 shops).
• The median king mattress cost £450; half cost between £310 and £664 (3,691 mattresses, 162 shops).
• A frame plus a mattress comes to about £950 at the median.
• Metal frames had the lowest median, £319; ottoman frames £540; four posters £869.
• 3,422 of the 7,204 frames (47.5%) showed a crossed-out "was" price, with a median displayed discount of 31%; for mattresses it was 58.4%, with a median of 35%.
• Without the three largest shops in the sample, the median frame is still £499.

These are the medians of the listings we read, not of every UK retailer: the method and the shops left out are explained in the study.

Key findings: how big a king size bed frame really is

Source: King Size Bed Dimensions. Makers' published specifications for the king size of each frame on this site, checked 11 October 2026.

• A UK king size mattress is 150 x 200 cm (5ft x 6ft 6in).
• Of the 91 king size frames we sell with a published outside size, 86 measure 153.5 to 175 cm wide and 207 to 229 cm long once assembled.
• The other five are built bigger, up to 231 cm wide or 236 cm long.

Download the data

• King size frame outside sizes, 91 frames (CSV, figshare): maker's outside width, length and headboard height for each frame, with a link to its page.

You can reuse the figures and the CSV, with a credit link to the source page, for example: "Source: King Size Bed UK, king-size-bed.co.uk".

About the source

King Size Bed UK is an online shop selling bed frames in UK sizes, run by SOLID PARTNER LTD (Companies House 17520919). More about who we are and where our figures come from is on our about page.

Contact

For questions about the data, a different cut of the figures or a chart in another format, email hello@king-size-bed.co.uk.