How to Choose a Bed Frame

Updated October 11, 2026 · By Serge, King Size Bed

To choose a bed frame, start with your mattress, then your room. Check how the frame supports the mattress (slats or a box spring), its outside size, how high it sits, the mattress thickness it was designed for, what weight it is rated for, what it is made of, what it costs and how it ships. Across 249 king bed frames listed by a US furniture distributor, the typical frame had slats 3 inches apart, 6 inches of space underneath and a 600 lb weight capacity. Half of 933 king beds listed by US retailers cost between $470 and $1,000.

Bed frame checklist at a glance

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The frame figures come from the specifications of 249 king bed frames listed by a US furniture distributor, counting only the frames that publish each figure. Outside sizes and overall height come from 545 king frames sold online in the US, and prices from 933 king bed listings at US online furniture retailers, all read in September 2026.

1. Start with how the frame holds your mattress

A bed frame holds the mattress in one of two ways. A platform frame has its own slats or a solid deck, so the mattress goes straight on top. A traditional frame is a set of rails made to carry a box spring, and the mattress sits on the box spring. Our guide to types of bed frames shows which designs usually work which way. If you plan to use an adjustable base, check that the frame is listed as compatible, because the base needs room to move.

If the frame has slats, the gap between them matters more than their number. Foam and hybrid mattresses can sag between slats that are too far apart, and many mattress warranties set a limit: the warranties we read cap the gap at 2 to 5.5 inches, most often at 4. Among the 114 king frames in the distributor's catalog that publish it, the median gap was 3 inches, and 79 of them were at 3 inches or less. When a listing gives no slat spacing, ask before you order. Our box spring guide goes through the limits mattress makers set and what to do when the slats are too far apart. Loose slats and joints are also what makes a bed squeak; our guide on how to stop a squeaky bed shows how to find the noise and fix it.

Slats, a solid deck or a box spring: if the terms are new, read the parts of a bed before you compare listings.

Slats farther apart than your mattress warranty allows? Our bunkie board vs box spring guide lists the slat gap limits of 13 mattress brands and what to put on top.

2. Measure the room against the outside size

The mattress is 76 x 80 inches for a king, but the frame is always bigger. Across 545 king frames sold online in the US, the median outside size was 80 inches wide and 86 inches long, the widest listed was 95 inches and the longest 105 inches. Padded designs often take more room: our Soho floating bed, upholstered in linen, measures 91 inches wide outside, and our Hudson 83.5 inches, against 79.2 inches for our Tahoe low profile wood frame.

Measure three things before you choose: the wall the headboard will stand against, the walking space you want around the bed, and the doors and stairs the boxes have to pass through. Our king bed frame dimensions guide has the room math and a calculator. If you are still deciding between sizes, our king vs California king guide compares the two, and our bed frame sizes chart lists every US size.

Choosing the mattress size before the frame? Our full size vs queen guide compares the two by room, price and number of sleepers.

Bringing a mattress from Europe? Each of our king frames is built for a 76 x 80 in US king, so a 180 x 200 cm mattress leaves 2.6 in free on each side. Check the European mattress sizes in inches first.

3. Decide how high the bed should sit

Two heights matter. The first is the space under the frame. Among 202 frames that publish it, the median clearance was 6 inches, but 47 of them sat just 2 inches off the floor. Pick a low frame if you want the bed to look smaller or sit under a window. Pick high clearance if you want to store boxes underneath or reach the floor with a robot vacuum: measure what you plan to slide under, then compare. Our Eugene clears about 13.3 inches and the Burlington 11 inches under its side rails; a floor bed like the Topeka leaves no gap at all. The Ithaca contemporary king bed sits in between, with 9.45 inches under its side rails. The height you sit at is the clearance plus the rails and the mattress, so if you like the height of a bed you already know, measure it to the top of the mattress and look for a similar total. Our bed height guide gives the typical totals and a table by your own height.

The second is the headboard. The median king frame stood 52 inches tall overall, which is mostly the headboard. A tall headboard makes a statement but can cover a window or an outlet; a low one keeps the wall open. Our Hudson stands 65 inches tall, our Tahoe 35.4 inches.

4. Check the mattress thickness the frame was designed for

Many makers publish a recommended mattress thickness. Among 188 king frames, it ranged from 6 to 14 inches, with a median of 10 inches; 8, 10 and 12 inches were the most common answers. The figure tells you how the mattress was meant to sit against the rails and the headboard. A much thicker mattress covers more of the headboard; a much thinner one can sit low between tall rails. If your mattress is already bought, compare its thickness with the maker's figure before you pick the frame. The maker of our Carmel, for example, recommends a 10 inch mattress.

5. Read the weight capacity

Most makers give a weight capacity. Across 223 king frames, the median was 600 lb, and the middle half ranged from 500 to 800 lb; the lowest was 250 lb and the highest 1,100 lb. Frames made only of manufactured wood had a lower median (500 lb, 27 frames) than solid wood frames (600 lb, 104 frames). The few metal frames that publish it (8) had a median of 850 lb, but that is too small a group to generalize. Our heavy duty king bed frames are the ones whose makers rate them for 1,000 to 1,200 lb.

Check that the figure leaves room for your mattress and everyone who sleeps on it. If two adults share a heavy hybrid mattress, a frame rated at the low end of the range leaves less margin than one rated at 800 lb. On a king, eight of the nine mattress warranties we read ask for a center support under the middle of the bed, so check whether the frame has center legs.

6. Choose the material

Solid wood was the most common choice: 118 of the 248 frames that name their material were solid wood, and 79 more mixed solid and manufactured wood. In our sample it carried a higher median weight capacity than manufactured wood (600 lb against 500 lb). Our Durango is pine that the maker lists as solid wood. The Nantucket rustic king bed frame is solid mango wood, kiln dried. All ten of ours whose makers list a solid wood frame are in our solid wood king bed frames.

Manufactured wood (MDF, particleboard or plywood with a veneer or a printed finish) is often used for panels, drawers and upholstered bases. In our sample it went with a lower weight capacity, so read that figure. Our Greenville panel bed is engineered wood and rubberwood under a wood veneer. The Portland, a mid-century platform, has a manufactured wood frame with rubberwood in its headboard, as its maker lists.

Metal frames are slim in profile. In our sample the 8 frames listed simply as metal had the highest median weight capacity (850 lb), a small group. A basic metal frame is only rails and legs and needs a box spring; a metal platform frame adds slats. Our Detroit is that kind: a metal frame with metal slats, so no box spring is needed. Compare it with the others in our metal king bed frames.

Rattan and cane panels are woven into a wood frame, most often in the headboard. They can be natural or synthetic, so read the listing: the Avalon has a natural rattan panel, the Athens woven cane panels and the Kailua a PE (synthetic) rattan panel. More in our rattan king bed frames.

Upholstered frames cover the headboard, and often the rails, in fabric over padding. Among the 103 upholstered king frames in the catalog that name their fabric, the most common covers were faux leather (30), polyester (30 including blends), linen (22 including blends) and velvet (15). Before you choose a fabric, check the care instructions the maker gives. A fully padded soft king bed frame like our Spokane covers every rail, so there are no hard corners to bump into. Ours come in linen blends, like the Laguna, boucle, like the Bend, chenille, like the Provo, and velvet, like the Charlotte. Padding also adds width, as step 2 shows. For the full comparison, with prices, weight ratings and widths measured on 107 king beds, see upholstered vs wood bed frame.

7. Set a budget

Half of the 933 king bed listings we read cost between $470 and $1,000, with a median of $673. The style you pick moves the price too, as the medians by type in our types of bed frames guide show.

A platform frame can also save you money elsewhere, because it needs no box spring; our king bed frames under $300 all have slats. Before you compare prices, check what each one includes: slats, center legs, a headboard and a footboard are standard on some frames and missing on others.

8. Plan for delivery and assembly

A king frame is a large delivery. In the distributor's catalog, 184 of the 249 king frames shipped by freight truck rather than by parcel, the median shipping weight was 162 lb, and 242 of 248 came in 1 to 4 cartons. Freight deliveries are often booked by appointment; check whether the carrier brings the boxes inside or leaves them at the door, and plan for two people to carry them.

Expect to build it yourself: 213 of the 243 frames that say needed full assembly, the other 30 partial assembly. Each of our frames states its delivery method on its page: the Tahoe ships by parcel carrier in 1 carton, the Soho by freight truck in 4 cartons, with a delivery appointment.

Questions people ask

What should I look for when buying a bed frame?

Check how it supports your mattress (slat gap or box spring), its outside size against your room, its height and clearance, the mattress thickness it was designed for, its weight capacity, its material, its price and how it is delivered. The checklist at the top of this page puts typical king figures next to each point.

What type of bed frame is most comfortable?

Comfort comes mostly from the mattress. The frame's job is to keep the mattress flat and quiet: close slats or a solid deck for foam and hybrid mattresses, center support legs on a king, and joints that stay tight. A padded headboard adds comfort if you read or watch TV in bed.

How much should I spend on a good bed frame?

In our sample of 933 king beds, half cost between $470 and $1,000, with a median of $673. Our king size bed cost guide adds mattress prices and the cost of the whole bed. The style moves the price: storage beds had a median of $897 against $571 for panel beds. Our article are storage beds worth it? compares the price of the same beds with and without storage. Whatever you spend, check the slat gap, the weight capacity and what is included.

Is it better to get a wood or metal bed frame?

Wood is by far the more common choice for a king with a headboard: in our sample, 118 of 248 frames were solid wood and 79 mixed solid and manufactured wood, against 10 all-metal frames. Metal frames are slim, but a basic metal rail frame needs a box spring. Pick on looks, then check the slat gap and the weight capacity, whatever the material. Our metal vs wood bed frame comparison puts the two side by side on 72 king beds.

How do I know if a bed frame is good quality?

Look at the parts that hold the mattress. The slats should be close enough for your mattress warranty, and four of the nine warranties we read also set a minimum slat width, from 2.5 to 3 inches. A king should have center support legs, a published weight capacity that leaves room for your mattress and sleepers, and clear assembly instructions. Read the frame's own warranty and return terms before you order, and check what happens if a part arrives damaged.

Ready to compare? Every one of our king size bed frames with a headboard lists its outside size, weight capacity and delivery method on its page, with its slat details or a note when the maker does not publish them.

Shop king beds by style

Every bed in these collections lists its outside size on the product page, so you can check it against your room and your mattress before you order.

Want names rather than criteria? Our best king bed frame guide applies these checks to 7 of our beds, by need: weight, foam mattress, storage and California king.

• All king bed frames
• By build: king platform beds, upholstered king beds, wood king bed frames, king beds with storage and king beds with drawers
• By height: low profile king beds, king floor beds with no gap underneath, king bed frames high off the ground with 10 to 14 inches underneath, and king beds with a tall headboard
• By look: modern, mid-century, rustic, cloud beds, velvet, black, brown, beige, gray, white and cream, wingback, boucle, linen, faux leather, solid wood, canopy, sleigh, rattan, metal, tufted, farmhouse and panel king beds, and king beds with a bookcase headboard
• For a 72 x 84 inch mattress: California king bed frames, including California king platform beds that need no box spring
• A few of our king beds: Burbank cloud bed with side shelves, Biloxi canopy bed, Montauk storage bed with 8 drawers and Fresno wood platform bed

Sources: specifications of 249 king bed frames listed by a US furniture distributor, read on September 30, 2026 (slat spacing, clearance, recommended mattress thickness, weight capacity, material, assembly and shipping method, counted only where published); listed outside dimensions and heights of 545 king frames sold online in the US, read on September 29, 2026; prices of 933 king bed listings from US online furniture retailers, read on September 29, 2026; mattress warranty limits on slat spacing as published by the mattress brands. Our own beds: their product pages.

Not sure you want a headboard at all? Compare our king bed frames without a headboard.

For the size of the headboard itself, see our guide to headboard sizes.

Once the frame is picked, the next measurement is what size rug goes under a king bed.

Going for a king? Compare our king bed frames with headboard by type and height.

Not sure what rating you need? Our guide to the bed frame weight limit does the math with the mattress included and lists the published ratings of 81 of our frames.

Weighing whether to skip the headboard? See do you need a headboard?

Where to look next: a floor bed frame king if you want the lowest bed, king bed frames with footboard for a raised foot end, and the Aspen walnut king bed frame for solid wood.

Related reading: our How to Put Together a Bed Frame guide.

Arranging the room around the new bed? See feng shui bed placement for the door, window and mirror rules and the clearance under our king frames.