Shop King Bed Frames by Size Fit
Shop king bed frames at KFROOMS — king size bed frames in platform, upholstered, storage, and classic wood designs, every one built around a standard 76″ x 80″ king mattress. Whether you call it a king bed frame, a king size bed, or a king platform bed, the job is the same: a wide, steady base with real center support under the largest standard mattress in the house, a headboard scaled to match, and enough presence to anchor a primary bedroom. Browse low-profile king platform beds, tall upholstered king beds in velvet, linen-look, and boucle fabrics, king storage beds with deep drawers, and solid wood king frames — with free nationwide delivery on orders over $1,500 and Affirm pay-over-time available at checkout. One naming note before you measure anything: an Eastern King is the standard king — the same 76″ x 80″ — under its other name, so Eastern King frames belong on this page. A California King mattress (72″ x 84″) is a genuinely different size and does not fit these frames. If you are still choosing a size, start from the full Beds collection or the queen-only cut at Queen Bed Frames; this page is the king-only cut.
What Is a King Bed Frame?
A king bed frame is a bed base sized to hold a standard king mattress — 76 inches wide by 80 inches long — with support slats or a platform deck, a center rail or center support legs, and usually a headboard. King is the widest standard bed size: sixteen inches wider than a queen at the same length, which is the difference between sharing a bed and each having real space in it. It is the default choice for primary bedrooms and for couples, and it asks more of the frame than any other size — a six-foot span of mattress needs a base built for it, which is why the support details on each product page matter.
King Bed Frames Compared
Platform Bed FramesUpholstered Bed FramesStorage Bed FramesSimple Metal Frames
Box spring neededNoUsually noUsually noSometimes
StorageUnder-bed clearanceUnder-bed clearanceBuilt-in drawers or lift storageUnder-bed clearance
StyleLow, modernSoft, tall wide headboardPractical, streamlinedMinimal, basic
AssemblyModerateModerateMore piecesEasiest
Best forModern primary bedroomsA headboard that holds a wide wallBig rooms short on dressersSpare rooms, tight budgets
Shop King Bed Frames by Style
King Platform Bed Frames
Best for: a low, calm profile at full width.
Low-profile king platform beds with solid slat or deck support — no box spring needed, and the space underneath stays open for bins and baskets. Shop the wider Beds range alongside this page if you are comparing king against queen footprints.
A platform base keeps a king’s width from overwhelming the room: the mattress sits low, the lines stay clean, and modern mattresses — most of which were designed for slats, not springs — get the firm, even support they are built for.
King Upholstered Bed Frames
Best for: a headboard that can hold a wide wall.
Padded headboards in velvet, linen-look, and boucle fabrics with solid wood or reinforced slat bases. See the full Upholstered bed collection, the Boucle Bed styles, or White Bed frames for the light-finish cut.
At king width, the headboard becomes the room’s main wall feature — wingback, channel-tufted, and panel designs are scaled up to fill it, with deep padding you can lean against to read and fabrics chosen to sit comfortably next to the nightstands and dressers already in the room.
King Storage Bed Frames
Best for: primary bedrooms that need every inch to work.
Drawers built into the frame sides or a hydraulic lift-up compartment under the mattress platform. Shop the dedicated Storage Beds collection for the storage-first range across sizes.
A king frame is the largest piece of furniture in most homes, and a storage king puts that footprint to work — deep side drawers for linens and clothing, or a lift-up platform that swallows seasonal bedding, spare pillows, and suitcases whole, in a room where a second dresser simply will not fit.
King Wood & Metal Bed Frames
Best for: classic weight and presence.
Solid wood king frames in warm finishes and sturdy steel and iron frames with clean lines. Round out the room from the Bedroom hub, or look at Rustic Bedroom Furniture for the weathered-wood direction.
From solid wood king bed frames with panel and canopy silhouettes to simple heavy-duty steel frames, these are the dependable picks for primary bedrooms that lean traditional and for guest rooms that need to feel finished. Wood brings the warmth and the long service life; metal brings the slimmest profile and the easiest assembly.
Why Buy King Bed Frames from KFROOMS
King-only, nothing to filter out — every frame on this page is here because its own product record says king (Eastern King included — it is the same size), so you are never picking queen, full, and twin sizes out of a general beds list to find the one that fits your mattress.
The 76″ x 80″ fit, stated plainly — king sizing is standardized, but overall footprints are not: each product page lists the frame’s full width, length, and headboard height. King frames typically run 80–86″ wide overall, so measure your wall and your walking space before the frame arrives.
Center support you can check before you buy — a king mattress spans over six feet, so slat spacing, center rails, and support legs decide how it sleeps. Those details are spelled out in each frame’s specifications, because a king mattress is only as comfortable as the base holding it up.
Cart discounts that apply themselves — $100 off orders of $2,500+ and $250 off orders of $5,000+, applied automatically in your cart. A king frame plus nightstands and a dresser reaches those tiers faster than the frame alone.
Free nationwide delivery on orders over $1,500 — most king frames on this page clear that threshold on their own; White Glove in-home setup is available at checkout.
Pay over time with Affirm — split a king frame order into monthly payments at checkout instead of putting the whole bedroom refresh on one card.
King Bed Frame Buying Guide
What size mattress fits a king bed frame?
A standard king mattress — 76 inches wide by 80 inches long — fits every king bed frame at KFROOMS, including the frames sold as Eastern King, which is the same size under its other name. A California King mattress (72″ x 84″) does not fit: it is narrower and longer, and it will gap at the sides and overhang the foot. Check the exact interior dimensions on the product page if your mattress is unusually thick or has a deep pillow top.
Do king bed frames need a box spring?
Most king bed frames at KFROOMS do not need a box spring. Platform and upholstered frames support the mattress directly on slats or a deck, with the center support a king span requires. Only some basic metal frames are designed for use with a box spring — the product page will say which, so you never buy a base you do not need.
King vs. queen — how much more room do you actually get?
Same 80-inch length, sixteen more inches of width: 38 inches of sleeping width per person instead of 30. The room math matters more than the bed math — a king frame is happiest in a room of at least 12 x 12 feet, and a 10 x 12 room can work with a low-profile frame and no bulky footboard. Measure the overall frame dimensions on the product page against your wall, not just the mattress size.
Frequently Asked Questions
What are the dimensions of a king bed frame?
The mattress area of a king bed frame is 76″ x 80″. With headboard and footboard included, most frames measure roughly 80–86″ wide and 86–92″ long. Measure your room and check the product page’s listed dimensions before ordering.
Is Eastern King the same size as King?
Yes. Eastern King and standard King are two names for the same mattress size — 76″ x 80″ — and frames sold under either name sit on this page. The name that is not the same size is California King (72″ x 84″).
Will a California King mattress fit a king bed frame?
No. A California King mattress is four inches narrower and four inches longer than a standard king, so on a king frame it leaves gaps at the sides and overhangs the foot. The two sizes are not interchangeable — order the frame that matches the mattress you own.
Are king bed frames from KFROOMS easy to assemble?
Yes. King bed frames ship flat-packed with labeled hardware and step-by-step instructions; most assemble in 30–60 minutes with two people. White Glove delivery adds in-home assembly and packaging removal at checkout.
Can I pay for a king bed frame over time?
At checkout, choose Affirm and the total for your king frame — plus anything else in the cart — can be split into monthly payments, subject to eligibility. You will see the payment schedule before you confirm, so there are no surprises after the order is placed.
Do you deliver king bed frames nationwide?
Yes — delivery runs nationwide, and it is free on orders over $1,500. Orders under that threshold are charged at the delivery rate shown at checkout, and White Glove in-home setup can be added there on qualifying orders.