A king size Murphy bed is the rare furniture upgrade that solves two problems at once in 2026: it gives overnight guests a real king mattress to sleep on, and it gives you your home office, gym, or craft room back for the other 350 nights a year. But a king panel is heavy, wide, and unforgiving of a rushed purchase — getting the wall space, mechanism, and mattress type right matters more here than with any other bed frame category.
The Best King Size Murphy Beds at a Glance
Novogratz Concord Wall Bed with Cabinets (King)
- Side cabinets hide bedding and free up closet space
- Piston mechanism stays smooth after months of daily folding
- Finish looks like real furniture, not a dorm-room kit
- King version is heavy — a two-person job to install
- Cabinets add about 14 inches of width beyond the bed frame itself
Bestar Pur Wall Bed King with Storage Unit
- Storage tower doubles as shelving when the bed is open
- Laminate finish resists scuffs from repeated folding
- Finish options actually match common bedroom furniture
- Assembly assumes some furniture-building experience
- Among the pricier options in this category
Costway Wall Mounted Murphy Bed King with LED
- Noticeably cheaper than cabinet or storage versions
- LED strip adds usable light for a desk-adjacent setup
- Straightforward wall-stud mounting hardware included
- No integrated storage, so bedding needs its own home
- Panel face feels thinner than the Novogratz or Bestar units
Invisibed King Vertical Murphy Bed Hardware Kit
- Lets you match existing cabinetry instead of a generic finish
- Piston lift is rated for heavier king mattresses
- Mounting plate spreads weight across multiple wall studs
- Requires woodworking skill or a contractor for the face panel
- No finished look until the cabinet work is done
Wilding Wallbeds King Panel Bed with Shelving
- Closed-bed look works as a standalone furniture piece
- Open shelving is genuinely useful day to day
- Solid-feeling construction with minimal wobble when down
- Higher price point than most cabinet-style competitors
- Open shelves mean less concealed storage than closed cabinets
Murphy Door King Wall Bed Frame Kit
- Rugged frame tolerates less finished, more utilitarian rooms
- Simpler assembly than cabinet-based systems
- Solid value for occasional-use guest sleeping
- Minimal aesthetic finishing out of the box
- Best paired with a separate mattress cover for dust protection
How much wall space does a king Murphy bed actually need?
This is where most first-time buyers get surprised. A king mattress is 76 inches wide and 80 inches long, and the cabinet housing adds another 4-8 inches of width and depth on top of that. Plan on a wall run of at least 84-90 inches for the unit itself, plus swing clearance when it is down: a king bed folded out needs roughly 84 inches of floor depth from the wall face to the foot of the mattress, plus another 24-30 inches of walking space beyond that so you are not climbing over the footboard to get to bed.
Ceiling height matters too. Vertical-lift king units (the mattress folds up head-first) typically need at least 8 feet of ceiling clearance to house the cabinet and hardware above the door swing. If your guest room has sloped ceilings or is under 8 feet, look specifically at horizontal or side-folding king designs instead, which mount along a long wall rather than reaching for the ceiling.
Vertical vs. horizontal: which mechanism fits your room?
Vertical king Murphy beds fold the mattress up along its 80-inch length, so the cabinet is roughly as wide as the bed (about 80-84 inches) but relatively shallow when closed — good for rooms with a single long uninterrupted wall. Horizontal designs fold the mattress up along its 76-inch width instead, which means the closed cabinet is shorter (around 84-90 inches long including width plus hardware) but the whole unit reads more like a low credenza. Horizontal setups also tend to suit rooms with lower ceilings, since the fold arc is shorter.
Piston-assisted mechanisms (gas struts or coil springs) are standard on nearly every reputable king unit now, and for good reason: an unassisted king panel with a mattress and foundation attached can weigh well over 150 lbs, and lowering that by hand alone is both hard and risky. Confirm the piston rating is matched to king weight specifically — some kits are rated for queen and simply oversized, which shows up as a panel that drops too fast or feels heavy to lift.
Mattress type: what actually works in a fold-up frame
Not every king mattress belongs in a Murphy bed. The mattress needs to be flexible enough to handle repeated folding at the head or foot without damaging its internal structure over time.
- Memory foam and latex (8-10 inches): the safest choice. They flex without stressing internal components and tend to be lighter than hybrids, which reduces strain on the piston mechanism.
- Hybrid mattresses with coils: workable, but stick to mattresses under about 10-11 inches thick and confirm the manufacturer explicitly approves Murphy bed or folding-frame use — some coil systems can develop dead spots faster under repeated flexing.
- Innerspring without a flexible top layer: avoid. Traditional innersprings are not designed to bend and can be damaged or damage the frame’s retention straps over time.
Whatever mattress you choose, make sure the frame includes a retention system (straps, a bar, or a mesh deck) rated for king dimensions specifically — this is what keeps 150+ lbs of mattress from sliding when the panel is vertical.
Weight capacity and wall mounting
A finished king Murphy bed with mattress can weigh 250-400 lbs depending on cabinet materials. This load has to transfer into wall studs, not drywall alone. Confirm your installation plan (or installer) is anchoring the frame into at least two, ideally three or more, wall studs, and that the kit’s mounting hardware is rated for the combined static and dynamic load of a king setup. If you are in an apartment or rental, check with your landlord before any wall-anchored installation — some kits offer freestanding cabinet options that lean against rather than bolt into a wall, though these generally cap out at queen size for stability reasons.
Assembly and delivery reality check
King Murphy beds ship in multiple heavy boxes, and cabinet-style units especially are a two-person assembly job that commonly takes 3-6 hours for a first attempt. Have a helper, a stud finder, a good drill, and a level on hand. If a unit’s reviews frequently mention professional installation, budget for it — misaligned piston mounts are the top cause of a king bed that feels unsafe to operate.
Common mistakes to avoid
- Measuring only the mattress, not the fold arc: always add clearance for the cabinet depth and the swing path of the bed door itself.
- Skipping the stud finder: a king unit anchored into drywall alone is a safety hazard, not a shortcut.
- Choosing a mattress by comfort alone: a plush 14-inch mattress that feels great in a showroom may be too thick or too heavy for the frame’s retention system.
- Ignoring ceiling height on vertical units: measure twice before ordering a vertical-fold king; returns on these are expensive due to freight shipping.
How the picks compare
| Model | Best for | Storage | Price |
|---|---|---|---|
| Novogratz Concord | Guest room + office combo | Side cabinets | $$$ |
| Bestar Pur | Small rooms needing storage | Storage tower | $$$$ |
| Costway LED | First-time buyers, budget | None | $$ |
| Invisibed Hardware Kit | Custom cabinet builds | Depends on build | $$$ |
| Wilding Wallbeds | Statement furniture look | Open shelving | $$$$ |
| Murphy Door Frame Kit | Garages and flex spaces | None | $$ |
King Murphy bed clearance at a glance
| Measurement | Typical requirement |
|---|---|
| Wall width (cabinet) | 84-90 in |
| Floor depth when open | ~84 in from wall |
| Walking clearance beyond mattress | 24-30 in |
| Ceiling height (vertical fold) | 8 ft minimum |
| Mattress thickness (recommended) | 8-10 in foam/latex, up to 11 in hybrid |
Looking at other sleeping setups for a flex room? Compare footprints with our guides to trundle sofa beds and day beds, or browse our full sofa beds hub. If you are still deciding on mattress dimensions before committing to a frame, our bed sizes and dimensions guide breaks down every standard size. For the mattress itself, see our picks for mattresses under $500 and cooling mattresses for hot sleepers. Curious how we evaluate frames like these? Read how we test.
Ready to reclaim your guest room?
The Novogratz Concord is our top all-around pick for a king Murphy bed that looks like real furniture.
Check price on AmazonCan a king size Murphy bed hold a hybrid mattress with coils?
Yes, as long as the mattress is under about 10-11 inches thick and the manufacturer approves folding-frame use. Thicker or heavier coil hybrids put more strain on the retention straps and piston mechanism than foam or latex does.
How much does professional installation for a king Murphy bed cost?
Professional installation typically runs a few hundred dollars depending on your region and whether electrical work (for integrated lighting) is involved. Many buyers with basic DIY experience install cabinet-style kits themselves in an afternoon with a helper.
Do king Murphy beds need to be bolted into wall studs?
Yes, for wall-mounted units. A finished king setup can weigh 250-400 lbs, and that load needs to transfer into at least two or three wall studs, not drywall alone. Freestanding cabinet options exist for renters but are usually limited to queen size or smaller.
What ceiling height do I need for a vertical king Murphy bed?
Plan on at least 8 feet of ceiling height for a vertical-fold king unit, since the cabinet and hardware need clearance above the door swing. Rooms with lower or sloped ceilings should look at horizontal-fold designs instead.
Is a king Murphy bed worth it over a queen?
If you regularly host couples or want the guest room to feel like a genuine bedroom rather than a downgrade, the extra wall space a king requires is worth it. If space is tight or guests are infrequent, a queen Murphy bed cuts several inches of required clearance with little sleep-quality tradeoff.
Can I put a king Murphy bed in a room with sloped ceilings?
Yes, but choose a horizontal-fold mechanism rather than vertical. Horizontal designs fold the mattress along its shorter width, which needs less vertical clearance than a vertical-fold cabinet reaching toward a sloped ceiling.
How long does it take to assemble a king Murphy bed?
Most cabinet-style king kits take 3-6 hours for two people on a first attempt, longer for storage or shelving add-ons. Hardware-only kits paired with custom cabinetry take considerably longer since you are also building or installing the face panel.
Do I need a special mattress cover for a Murphy bed?
It is not required, but a fitted, low-profile mattress protector helps keep dust off a mattress that spends most of its time stored vertically, especially in garages, basements, or other less climate-controlled flex spaces.
Sophie Laurent
Sophie Laurent is TalkBeds' Beds & Bedroom Editor. With more than ten years covering home and furniture, she leads everything on the site that isn't the mattress itself: bed frames, platform beds, headboards, bunk and kids' beds, sizing, and the interiors decisions… Full profile & sources →