Horizontal Murphy bed, queen — The ceiling maths
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A horizontal queen Murphy bed folds sideways. The mattress pivots on its 80-inch long edge, so the closed cabinet stands about 60 inches tall and runs about 80 inches along the wall — roughly the reverse of the vertical version.
If your ceiling is the problem, that reversal is the whole answer. If your wall is the problem, it makes things worse. This page is about working out which of those you have.
A horizontal queen closes to about 60 inches tall and needs about 80 inches of wall — that is more wall than a vertical king requires. Open, it still needs 80 inches of clear floor, the same as any queen. Choose it under a sloped attic ceiling, in a basement, or below a window sill. Do not choose it because it sounds tidier: a vertical queen needs only about 60 inches of wall and there are far more models to pick from. Also note that one long edge sits against the wall, so a couple sharing means one person climbs over.
The numbers, and the number that surprises people
US mattress sizes are fixed, so the closed cabinet dimensions fall straight out of which edge the bed pivots on. A queen is 60 × 80 inches.
| Figure | Vertical queen | Horizontal queen |
|---|---|---|
| Closed height | About 80 in | About 60 in |
| Wall run needed | About 60 in | About 80 in |
| Clear floor when open | 80 in | 80 in |
| Ceiling requirement | High — the binding constraint | Low — usually easy |
| Compared to a vertical king | Uses 16 in less wall | Uses 4 in MORE wall |
| Model choice | Wide | Narrow |
The fifth row is the one to sit with. A vertical king needs about 76 inches of wall. A horizontal queen needs about 80. You are buying a smaller bed and spending more wall on it — which is entirely rational if the ceiling forbids the vertical version, and irrational otherwise.
Work out which constraint you actually have
Take three measurements before looking at products, in this order.
- Usable wall run. Not the length of the wall — the length with nothing in it. A light switch, a door swing, a radiator or a window reveal removes that width as effectively as a corner does. If this number is under about 80 inches, horizontal is out.
- Ceiling height at the wall. On a sloped ceiling this is not the room’s ceiling height; it is the height where the cabinet will actually stand. Measure at the wall itself.
- Clear floor. Eighty inches out from the wall, permanently, for either orientation. This does not change and it is not negotiable.
If wall is tight and ceiling is fine, go vertical. If ceiling is tight and wall is generous, horizontal. If both are tight, the honest answer is a smaller mattress — the sizes are compared in Murphy bed sizes, and the horizontal twin is the lowest-ceiling option in the category.
Where a horizontal queen genuinely wins
- Attic rooms. Where the usable wall is only tall near the ridge, a 60-inch cabinet can sit against the low wall where a 80-inch one simply cannot stand.
- Basements. Low ceilings, often with ducting or beams eating the last few inches.
- Under a window. A cabinet that finishes below the sill leaves the window working. Check the sill height against the closed cabinet height, and check the window still opens with the bed down.
- Keeping the upper wall free. Shelving, art or a television above the closed bed is possible in a way it is not with a full-height cabinet.
Living with a bed that opens sideways
Access from one side only
The long edge is against the wall. One sleeper has the wall on their side and must climb over the other person to get out. For a couple using it nightly this is the real objection to the format and it does not go away. For a guest room or a single sleeper it is a non-issue.
The closed cabinet becomes a shelf
At 60 inches the top is above most people’s reach, unlike the waist-height twin version — but the lower part of the cabinet still invites furniture to be pushed against it, and anything in front has to move before the bed comes down. Plan the zone in front as part of the bed, not as floor.
Bedding folds the other way
The duvet folds along the mattress length rather than across it. In practice this matters less than people expect, but the retention strap sits differently and is worth checking on arrival.
The fixing does not get easier
Folding sideways does not reduce the load into the wall. The mechanism still turns the mattress into a lever and still delivers that force into the anchors — and because the cabinet spans about 80 inches, it crosses more studs and needs more of them.
Studs, manufacturer’s fixing points, manufacturer’s hardware. Drywall anchors alone are not an option. A stud finder is the first tool for this job. If the wall is masonry or metal stud, get the maker’s guidance before improvising, and if the wall genuinely cannot take a fixing, the freestanding queen cabinet bed is the format that needs no wall at all.
What to check on a listing
The stated closed depth
A horizontal cabinet projects into the room across its whole 80-inch length, so depth matters more here than on a narrow vertical unit. Ten inches of projection across seven feet of wall is a noticeable piece of furniture.
Mattress thickness limit
The same trap as every Murphy bed: the mattress folds into the case with the bedding on, so there is a hard maximum. Buy the cabinet, read its number, then buy the mattress.
Piston or spring
Gas pistons stay smooth and are replaceable; torsion springs are cheaper and need correct setup. A queen mattress is heavy enough that the mechanism quality shows. The two are compared in piston against spring.
Top surface material
A long low cabinet gets used as a surface whether or not you intend it to. Edge banding intact means spills stay out of the core; a raw particleboard edge swells. The listing vocabulary is decoded in what engineered wood actually is.
Before you order
- Stud finder An 80-inch cabinet crosses four or five studs and wants all of them
- Tape measure Usable wall run first — it is the constraint that rules horizontal in or out
- Spirit level A long low cabinet shows any error in level across its whole length
- Mattress retention strap Sits differently on a sideways fold; check it on arrival
What to buy
If the ceiling turns out not to be the constraint, the vertical queen uses 20 inches less wall and has many more models. The sideways mechanism in general is covered in side-mount Murphy beds, and the whole category in how Murphy beds work.
Questions we get asked
How tall is a horizontal queen Murphy bed when closed?
About 60 inches — set by the mattress width rather than its length — plus whatever the cabinet adds. Roughly 20 inches lower than the vertical version.
How much wall does a horizontal queen need?
About 80 inches of uninterrupted run, which is more than a vertical king requires. This is the cost of the lower height.
Does a horizontal Murphy bed use less floor space?
No. Open, it occupies the same 60 × 80 inches as any queen. Only the closed shape changes.
Can two people sleep in a horizontal queen?
Yes, but one long edge is against the wall, so one person climbs over the other. For nightly sharing a vertical mount is the better shape.
Is a horizontal Murphy bed more expensive?
Usually somewhat, mainly because far fewer are made rather than because they are harder to build. The budget end of the market is much thinner.
Can a horizontal queen go under a window?
Often, and it is one of the best reasons to choose one. Check the sill height against the closed cabinet height and confirm the window still opens with the bed down.
