A king size ottoman bed is the most popular premium bed purchase in the UK — and it's easy to understand why. At 150cm × 200cm, it provides generous shared sleeping space for two adults, comfortable accommodation for taller sleepers up to around 6ft 4in, and — in ottoman configuration — a storage compartment beneath the mattress that replaces several hundred pounds' worth of supplementary bedroom storage furniture. A single purchase that handles sleeping, storage, and the bedroom's most significant aesthetic statement simultaneously. At Airedale Living, our king size ottoman beds are available in upholstered fabric, velvet, and wooden finishes across a range of neutral tones, all built on solid frames with quality gas-lift mechanisms designed for the heavier loads that a king size mattress creates. Browse the full collection above and pair with a king size mattress at 150cm × 200cm. Free UK delivery is included on every order.

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King Size Ottoman Beds: How They Work and What Makes Them Worth It

An ottoman bed at any size operates on the same principle — a gas-lift mechanism raises the mattress and base to reveal under-bed storage — but at king size, several of the specifications change in ways that matter for the buying decision.

The gas-lift mechanism at king size. A king size mattress is significantly heavier than a double mattress — particularly so for memory foam, hybrid, and latex mattresses of 25cm or above in depth, which can weigh 40–70kg compared to 20–35kg for a standard spring mattress. The gas-lift mechanism on a king size ottoman must be rated for a correspondingly higher load than a double ottoman mechanism, and quality varies significantly between products in this category. A well-specified king size ottoman mechanism lifts smoothly, holds the base open securely, and maintains its pressure over years of regular use. A cheaper mechanism on a heavy king size mattress will lose pressure faster, making the lift progressively harder and the open position less stable. Check mechanism quality and weight ratings on individual product pages — customer reviews specifically mentioning mechanism performance are the most reliable guide.

Foot-end vs side opening. King size ottoman beds open from the foot of the bed or from one side depending on the model. Foot-end opening requires 60–80cm of clear floor space at the foot — a requirement that a king size bed in a room of 3.2m length (200cm bed + 80cm opening clearance + 40cm headboard-to-wall clearance) can accommodate comfortably. In rooms where the foot of the bed is closer to a wall or wardrobe, a side-opening model is the more practical choice. Always check the opening direction on the individual product page and measure your specific room layout before ordering.

Is the ottoman premium worth it at king size? Yes — for most primary bedrooms, more decisively than at any other size. A king size ottoman base provides 500–700 litres of storage — more than a five-drawer chest of drawers — within the bed's existing footprint. In a master bedroom where wardrobe and floor storage is at a premium, this is one of the most genuinely valuable furniture investments available. The price premium over a standard king size frame is typically recouped in the storage furniture and under-bed solutions it replaces.

King Size Ottoman Bed Dimensions: The Complete Size and Storage Guide

External bed size: 150cm wide × 200cm long

This is the standard UK king size bed dimension — 15cm wider and 10cm longer than a standard double. Always pair with a king size mattress at exactly 150cm × 200cm. A double mattress (135cm × 190cm) is both narrower and shorter and will not fit correctly.

Internal ottoman storage dimensions: approximately 125–135cm wide × 180–190cm long × 25–35cm deep

The internal compartment is narrower and shorter than the external frame because the frame sides and head and foot sections occupy part of the overall footprint. In volumetric terms, a king size ottoman provides approximately 500–700 litres of accessible storage — the equivalent of a generous five-drawer chest of drawers in total capacity, within the bed's existing footprint.

How a king size ottoman compares to other ottoman sizes:

  • Double ottoman (135cm × 190cm): approximately 400–600 litres storage
  • King size ottoman (150cm × 200cm): approximately 500–700 litres storage
  • Super king ottoman (180cm × 200cm): approximately 650–850 litres storage

Room planning with a king size ottoman bed:

  • Minimum room width: 310cm (150cm bed + 80cm walkway on each side)
  • Comfortable room width: 350cm+ (150cm bed + 100cm walkway on each side)
  • Minimum room length for foot-end opening: 340cm (200cm bed + 80cm ottoman opening clearance + 60cm headboard-to-wall clearance)
  • For rooms under 340cm in length, a side-opening model is worth prioritising

Mattress weight consideration. The gas-lift mechanism on a king size ottoman must handle the combined weight of the base and mattress. A standard spring king size mattress weighs 25–40kg; a memory foam or hybrid mattress of 25cm+ depth can weigh 50–70kg. Always check the mechanism's rated lift capacity on the product page against your intended mattress weight. The mattresses collection provides mattress weight information on individual product pages.

Choosing Your King Size Ottoman: Finish, Configuration, and Comparison

Finish options. King size ottoman beds are available in upholstered fabric, velvet, and wooden finishes. Upholstered frames — in grey, beige, cream, black, and other neutral tones — are the most popular choice for master bedrooms, where the headboard and base create a substantial visual presence that fabric and velvet handle with more warmth than wood. A grey fabric king ottoman coordinates with the widest range of bedroom furniture. A velvet finish adds richness and depth — particularly effective in mid-grey, navy, or dark teal tones. Wooden frames in oak and white suit Scandi and traditional bedroom schemes where upholstery on the frame would look inconsistent with surrounding furniture.

Coordinating the bedroom around a king ottoman. A king size ottoman bed is the largest and most dominant piece in any bedroom — the piece around which everything else is arranged. Wardrobes and chest of drawers in a complementary finish, bedside tables on each side of the bed, and a mirror positioned to reflect light across the room create a master bedroom that feels properly considered. Browse the full bedroom furniture collection to plan the complete room.

King size vs super king ottoman. A king size ottoman at 150cm × 200cm suits most UK master bedrooms — plan for a room of at least 310cm in width with comfortable clearance on both sides. A super king ottoman at 180cm × 200cm provides 30cm of additional width (90cm per person when shared) but requires a room of at least 380–400cm in width for comfortable clearance. If the room genuinely accommodates the super king with comfortable space on both sides, the additional sleeping width is worth having. If the room is 310–360cm wide, the king size is almost certainly the more appropriate choice. See the super king size beds collection to compare directly.

King size vs double ottoman. A double ottoman (135cm × 190cm) suits rooms of 255cm+ in width and provides 400–600 litres of storage. A king size ottoman (150cm × 200cm) requires a room of 310cm+ in width and provides 500–700 litres. The 15cm of additional width and the 10cm of additional length on the king are the deciding factors — for couples who share regularly and rooms that accommodate the larger size comfortably, the king is the right upgrade. See the double ottoman beds collection to compare directly.

Completing the Master Bedroom Setup

A king size ottoman bed works best in a master bedroom planned around what the storage provides and eliminates. The ottoman base typically handles spare bedding, seasonal clothing, suitcases, and bulky stored items — removing the need for under-bed boxes and reducing or replacing the chest of drawers. A wardrobe handles hanging clothing; a chest of drawers handles any folded clothing the wardrobe doesn't accommodate; bedside tables on each side complete the core furniture arrangement.

Pair the frame with a king size mattress at exactly 150cm × 200cm. Browse the full mattresses collection for the right firmness, depth, and material. If your chosen mattress is 25cm or above in depth, check the gas-lift mechanism weight rating on the product page — heavier mattresses require a higher-rated mechanism for consistent long-term performance.

Every Airedale Living king size ottoman bed comes with free UK delivery and arrives ready for self-assembly with all fixings and instructions included.

Browse the full king size ottoman bed collection above — and invest in the bedroom upgrade that delivers the most practical return of any single furniture purchase.

Frequently Asked Questions

A king size ottoman bed is a bed frame at the standard UK king size (150cm × 200cm) with a large storage compartment built into the base. The mattress and slatted base lift as a single unit via a gas-assisted mechanism — from the foot or side of the bed depending on the model — to reveal the storage space beneath. When closed, it functions as a standard king size bed frame. When open, it provides access to approximately 500–700 litres of storage — more than a five-drawer chest of drawers — within the existing bed footprint. See the full king size beds collection to compare ottoman and standard frames side by side.

A king size ottoman bed opens via a gas-lift mechanism — compressed gas in a cylinder provides upward force that counterbalances the combined weight of the mattress and base, making the lift straightforward to initiate. The base pivots either from the foot of the bed (most common) or from one side depending on the model. The gas mechanism holds the base open securely without propping — both hands are free to access the storage. Foot-end opening requires 60–80cm of clear floor space at the foot of the bed. Always check the opening direction on the individual product page and measure your room before ordering. At king size, mechanism quality is particularly important — a well-specified mechanism handles the heavier mattress load consistently over years of use.

A king size ottoman bed provides an internal storage compartment of approximately 125–135cm wide × 180–190cm long × 25–35cm deep — roughly 500–700 litres of accessible storage, depending on the model. This is equivalent to the capacity of a generous five-drawer chest of drawers, in one continuous open space within the bed's existing footprint. It comfortably holds a full set of spare bedding, seasonal clothing, suitcases laid flat, and bulky stored items. The compartment is fully open with no internal dividers — storage boxes and vacuum bags help organise items and prevent shifting when the base is lifted. For comparison, a double ottoman bed at 135cm × 190cm provides approximately 400–600 litres.

For most master bedrooms, yes — more decisively than at smaller sizes. The price premium over a standard king size frame is typically £150–£300. A five-drawer chest of drawers of comparable storage capacity costs a similar amount and occupies additional floor space and wall area. A king size ottoman provides equivalent storage within the bed's existing footprint, freeing floor space and eliminating under-bed storage solutions. In a master bedroom where floor storage and wardrobe space is at a premium — which describes most UK master bedrooms — the ottoman premium is recovered in the furniture it replaces and the floor space it frees within the first purchase. For rooms with generous existing storage already in place, a standard king size bed frame is adequate and the ottoman premium is less justified.

Most king size ottoman beds have a sleeping surface weight capacity of 150–200kg, varying by frame construction — check the individual product page for the specific rating. The gas-lift mechanism has a separate rated capacity for the combined weight of the mattress and base it needs to lift. At king size this is particularly important: a memory foam or hybrid king size mattress of 25cm+ depth can weigh 50–70kg — significantly more than a standard spring mattress of 25–35kg. Always check the mechanism's lift weight rating on the product page against your intended mattress weight. An undersized mechanism on a heavy king size mattress will lose pressure faster and make lifting progressively harder over time. Browse the mattresses collection for weight information on individual mattress models.