To measure a room for a double sofa bed, you need six numbers: the wall length where it will sit, the clear floor depth in front of it when opened, the ceiling height above the frame, the width of every doorway on the delivery route, the turning space on any staircase or landing, and the distance to the nearest obstruction such as a radiator or window sill. Get those six right and the sofa bed will fit both physically and practically.
Most fitting problems are not caused by the sofa being too big for the room. They are caused by the opened bed blocking a door, the delivery route being narrower than the frame, or a radiator sitting exactly where the backrest needs to land. A methodical measure takes twenty minutes and removes all three risks.
Start with the closed width. Measure the full wall from corner to corner at skirting height, then again at waist height, because older UK properties are rarely square and the difference can be several centimetres.
Subtract any fixed obstructions: a chimney breast, a door architrave that projects, a radiator that sticks out from the wall. What remains is your usable wall length. A double sofa bed typically needs between 190cm and 220cm of closed width, so compare that figure directly.
Leave breathing space at each end. A sofa that fills a wall exactly looks wedged in, and you lose the ability to place a lamp or a side table. Around 10cm at each side is enough to let the piece read as furniture rather than joinery.
This is the number people forget. A double sofa bed extends forward when opened, and the total floor depth required is usually between 190cm and 215cm from the back of the frame to the front edge of the mattress.
Mark it on the floor. Run a tape measure out from the wall, place a book or a strip of masking tape at the full extended depth, then walk around the room. If you cannot pass comfortably, the piece is too deep for the space, regardless of how well it fits closed.
Pay particular attention to what sits opposite. A coffee table that needs moving every time the bed opens becomes tiresome quickly. A lightweight nest of tables is far easier to shift than a solid rectangular table, which is why many of our customers pair sofa beds with pieces from the modern nest of tables UK sale range.
Click clack and fold flat frames need clearance behind them so the backrest can drop. Between 10cm and 15cm is typical, and the sofa must be pulled forward from the wall to operate. If the room is tight, a pull out frame that extends only forwards may suit better.
Look up as well. Sloping ceilings in loft conversions and dormer bedrooms can interfere with the back of a raised frame during operation, even when the closed height clears easily. Measure the ceiling height directly above where the backrest will travel, not in the middle of the room.
Window sills are the other common obstruction. If the sofa bed sits under a window, check that the closed back height finishes below the sill rather than pressing against it. Radiator position matters too: furniture placed hard against a radiator blocks heat and can dry out upholstery over time.
A double sofa bed is heavier and less flexible than a standard sofa because of the internal frame. It cannot be bent or squeezed in the way a soft sofa sometimes can.
Measure the narrowest point of every doorway, including the depth of the door itself if it cannot be removed. Then measure the width of the hallway and, crucially, the diagonal space at any turn. A sofa that passes through a door easily can still fail at a ninety degree turn into a living room.
For flats and maisonettes, measure the stairwell width and the height of the landing ceiling at the turn. Lift dimensions should include the door aperture, not just the internal cabin, because the aperture is usually the limiting factor.
Write these numbers down and compare them against the packaged dimensions rather than the assembled ones. Packaging adds several centimetres on each face.
A bed needs access. If someone is sleeping on it, they need to get in and out without climbing over another person or a piece of furniture. Aim for at least 55cm of clear walking space on one long side, and ideally on both if two people will use it.
Doors are the main conflict. Check the swing of the room door against the opened mattress. Internal doors typically need around 80cm of clear arc, and a sofa bed that blocks that arc is a genuine hazard rather than an inconvenience.
Think about wardrobes and drawers too. A chest of drawers that cannot open when the bed is out makes a guest room frustrating to use. In multipurpose rooms, sliding door wardrobes solve this neatly because they need no clearance in front, and our modern sliding wardrobes UK sale range is often specified for exactly this reason.
The final step is the most useful. Mark the full closed footprint and the full opened footprint on the floor using masking tape. Include the arms, not just the seat.
Live with the outline for a day. Walk the route you normally take through the room. Open the door. Pull out the drawers. Sit in your usual chair and look at where the tape sits in relation to the window and the fireplace. Problems that are invisible on a floor plan become obvious within minutes.
If you have a rug already, lay it inside the tape outline. A sofa bed needs to clear the pile when it opens, and a thick rug can catch on a pull out frame. Flat weaves are the safer choice under folding furniture.
In a narrow Victorian reception room, the chimney breast alcoves often dictate the layout. A double sofa bed rarely fits into an alcove, so it usually sits against the longest clear wall with the opened depth running towards the bay.
In a modern flat with an open plan layout, the constraint is usually circulation rather than wall length. Here it helps to place the sofa bed so it opens towards the least used part of the floor, often the area between the seating zone and a window.
In a home office that doubles as a guest room, the desk is the obstruction. Wall mounted shelving frees the floor and keeps the opened bed clear, and a compact desk that can be pushed aside is worth more than a large one that cannot. Pieces from our modern computer desks UK sale range include slim depth options designed for rooms with more than one job.
A standard UK double mattress measures 135cm by 190cm. A small double is 120cm by 190cm. Sofa beds may use either, and the difference changes how much walking space remains.
Seat height on most sofa beds sits between 42cm and 48cm. Arm height ranges more widely, from around 55cm on low contemporary frames to 70cm on traditional shapes, which affects whether the piece will sit under a window.
Closed depth is typically 90cm to 105cm. If your room is under 3 metres deep, subtract the closed depth from the room depth before assuming a facing armchair will fit.
At Furniture in Fashion every sofa bed listing carries both closed and opened dimensions so you can check against your own measurements before ordering. We deliver modern furniture with free delivery to most UK mainland postcodes, and Returns are available up to 30 days.
Confirm the usable wall length. Confirm the opened floor depth. Confirm rear and overhead clearance. Confirm every doorway, turn and stair on the route. Confirm at least 55cm of access down one side of the opened bed. Confirm the tape outline works in daily use.
If all six pass, the sofa bed will fit. If one fails, the fix is almost always to change the mechanism type rather than the size: a pull out frame instead of a click clack, or a chaise design that opens along its length rather than across the room.
Allow roughly 190cm to 215cm of depth from the back of the frame to the front of the mattress, plus around 55cm of access along one side.
Most standard internal doors are 762mm wide, which many sofa beds will pass through on their side. Check the packaged height of the frame against that figure, and measure any turn immediately beyond the door.
Fold flat and click clack designs usually need 10cm to 15cm behind so the backrest can lower. Pull out frames extend forwards and can sit closer to the wall.
A small double mattress is 120cm wide and a standard double is 135cm. Both are normally 190cm long, so the difference affects width rather than the depth you need to allow.
Measure first. Knowing your usable wall length and opened depth narrows the choice immediately and prevents you settling on a design the room cannot take.
Choosing a wall colour for a room with a grey sofa bed starts with identifying…
Sofa beds with storage and ottoman sofa beds look alike in photographs and behave very…
Large living rooms fail more often than small ones, because space without structure reads as…
A footstool is the most useful thing you can put beside a sofa bed. It…
Mid century sofa beds are recognisable by a low slim profile, angled tapered legs and…
Small living rooms work best when the empty floor is planned before the furniture, and…
This website uses cookies.