Best picks

8 Best Crib Conversion Kits for Full-Size Beds (November 2026)

Updated on · By the Baby Playpens & Bassinets team

The best crib conversion kits for full-size beds include the DaVinci Hidden Hardware Twin/Full-Size Bed Conversion Kit for compatible DaVinci-family cribs, the CC KITS Full-Size Wood Conversion Kit Bed Rails for Baby Cache model matching, and the Davinci Twin/Full Size Bed Conversion Kit for Emily and Kalani crib owners.

On this page (6 sections)
  1. The best crib conversion kit full bed picks
  2. How we compared crib to full bed conversion kits
  3. Are crib conversion kits universal?
  4. What do you need for a crib to full bed conversion?
  5. How do you choose the right full-size crib conversion kit?
  6. Final verdict on the best crib conversion kit full bed

The best crib conversion kit for a full bed is the DaVinci Hidden Hardware Twin/Full-Size Bed Conversion Kit when your crib is in its compatible model group. It converts a full-size crib to a full-size bed, while other picks suit specific Baby Cache, Soho Baby, Oxford Baby or Namesake cribs.

Conversion kits are not interchangeable. A rail that looks right can still fail to match the hardware points on your crib.

Model matching matters more than a close visual fit.

A full-bed kit usually reuses the crib headboard and footboard with new side rails and slat supports. The crib sets many limits because its height, width and connection points decide whether the kit sits squarely.

The DaVinci pick uses wood rails made from 100% sustainable New Zealand pine wood. The finish is described as a non-toxic multi-step painting process that is lead and phthalate safe.

Wood suits nursery furniture for daily use and can be wiped clean. The same kit can also convert a mini crib into a twin bed.

It fits select Babyletto, Babymod, Carter's by DaVinci, DaVinci and Million Dollar Baby Classic cribs. The word select is key, because brand alone does not confirm fit for your exact furniture.

Plan for the mattress and box spring to be sold separately. The rails create the frame but do not complete the sleep setup.

Care is straightforward for painted wood. Wipe the rails with a damp cloth and check the connections over time as the bed settles into regular use.

The trade-off is narrow compatibility for a clear match. If your crib is listed, the conversion path is well defined, and if it is not, another kit in this guide may fit better.

If you are still choosing the crib itself, start with our guide to best baby cribs. For a broader look at rails and model matching, compare our best crib conversion kit guide.

Our picks at a glance

  1. 1 DaVinci Hidden Hardware Twin/Full-Size Bed Conversion Kit
    Best for compatible DaVinci-family cribs

    DaVinci Hidden Hardware Twin/Full-Size Bed Conversion Kit

    9.7/10 our score

    See it on Amazon
  2. 2 CC KITS Full-Size Wood Conversion Kit Bed Rails
    Best for Baby Cache model matching

    CC KITS Full-Size Wood Conversion Kit Bed Rails

    9.5/10 our score

    See it on Amazon
  3. 3 Davinci Twin/Full Size Bed Conversion Kit
    Best for Emily and Kalani crib owners

    Davinci Twin/Full Size Bed Conversion Kit

    9.4/10 our score

    See it on Amazon
  1. 4Soho Baby Chandler Crib to Full-Size Bed

    Soho Baby Chandler Crib to Full-Size Bed

    Best for Chandler 4-in-1 cribs
    Check it
  2. 5CC KITS Full-Size Conversion Kit Bed Rails

    CC KITS Full-Size Conversion Kit Bed Rails

    Best for listed Oxford, Soho and Ozlo models
    Check it
  3. 6Yuleimy Full to Queen Conversion Kit

    Yuleimy Full to Queen Conversion Kit

    Best for headboard mounting changes
    Check it
  4. 7Namesake Winston -Full Size -Bed Conversion Kit

    Namesake Winston -Full Size -Bed Conversion Kit

    Best for the Winston 4-in-1 crib
    Check it
  5. 8Oxford Baby Universal Full Bed Conversion Kit

    Oxford Baby Universal Full Bed Conversion Kit

    Best for Oxford Baby Kenilworth owners
    Check it

The best crib conversion kit full bed picks

The best crib conversion kit full bed option depends on your crib model first, then on the rail material, included slats and support details. These picks are arranged by score, with the highest-scoring model first.

1

DaVinci Hidden Hardware Twin/Full-Size Bed Conversion Kit: Best for compatible DaVinci-family cribs

DaVinci Hidden Hardware Twin/Full-Size Bed Conversion Kit, crib conversion kits for full-size beds
9.7/10Our score
  • Wood rails
  • Converts a full-size crib to a full-size bed
  • Converts a mini crib to a twin bed
  • Sustainable New Zealand pine wood

This wood rail kit covers both full-size crib to full-bed and mini crib to twin-bed conversions. It suits buyers who have a listed compatible crib and want a finish described as lead and phthalate safe.

See it on Amazon

Pros

  • Supports full-bed and twin-bed conversions
  • Sustainable New Zealand pine wood
  • Broad family of listed compatible brands

Cons

  • Mattress and box spring are sold separately
  • Compatibility is limited to select crib models

The DaVinci Hidden Hardware Twin/Full-Size Bed Conversion Kit is the most flexible choice in this group when your crib is compatible. Its wooden rails convert a full-size crib into a full-size bed, and they can also convert a mini crib into a twin bed.

The rails use 100% sustainable New Zealand pine wood. DaVinci describes the finish as a non-toxic multi-step painting process that is lead and phthalate safe.

Compatibility includes select Babyletto, Babymod, Carter's by DaVinci, DaVinci and Million Dollar Baby Classic cribs. “Select” matters here, so match the exact crib model rather than relying on the brand name alone.

The full-size bed mattress and box spring are sold separately. That makes this a strong rail choice, but not a complete sleep setup by itself.

Choose it for a compatible DaVinci-family crib, especially if you may use the mini-crib-to-twin conversion path later. Check your crib model and finish before ordering.

DaVinci Hidden Hardware Twin/Full-Size Bed Conversion KitCheck it on Amazon
2

CC KITS Full-Size Wood Conversion Kit Bed Rails: Best for Baby Cache model matching

CC KITS Full-Size Wood Conversion Kit Bed Rails, crib conversion kits for full-size beds
9.5/10Our score
  • 100% solid wood rails
  • Two rails, four 54 in slats, hardware and instructions
  • Supports up to 600 lb with additional slats
  • Lifetime warranty

This CC KITS option is built around a detailed Baby Cache compatibility guide. It includes rails, slats, hardware and instructions, but additional slats are needed for the stated 600 lb support.

See it on Amazon

Pros

  • Solid wood construction
  • Detailed compatible-model list
  • Hardware and instructions included

Cons

  • Not compatible with several named Baby Cache models
  • Additional slats are sold separately for the stated maximum support

The CC KITS Full-Size Wood Conversion Kit Bed Rails suit Baby Cache owners who want a solid wood rail set and a detailed compatibility guide. The named compatible models include Adelina, Collins, Contempo, Covington, Eastport, Essentials/Bliss, Glendale, Harbor, Haven Hill, Julia, Kensington, Manhattan, Medford, Melbourne, Monaco, Montana, Overland, Oxford, Prescott, Riverside, Royale, Serenity, Tampa, Taylor by Koala Home, Thompson, Vienna, Waterford and Windsor cribs by Baby Cache.

The kit includes two wooden bed rails, four 54 in slats, hardware and instructions. It is made from 100% solid wood rather than plywood or veneers.

The stated support is up to 600 lb when paired with additional slats sold separately. That condition is important because the included parts and the maximum support are not the same thing.

The guide also names Baby Cache models that do not fit, including Cape Cod, Hudson, Portland, Tahoe and Uptown. Confirm your model before you plan the conversion.

Choose it for a named Baby Cache crib when the solid wood construction and included hardware fit your setup. Skip it when your model is not on the compatibility list.

CC KITS Full-Size Wood Conversion Kit Bed RailsCheck it on Amazon
3

Davinci Twin/Full Size Bed Conversion Kit: Best for Emily and Kalani crib owners

Davinci Twin/Full Size Bed Conversion Kit, crib conversion kits for full-size beds
9.4/10Our score
  • Wood rails
  • Full-size crib to full-size bed conversion
  • Mini crib to twin-size bed conversion
  • Sustainable New Zealand pine wood

This espresso rail pair is a focused choice for the compatible Emily and Kalani models. It also supports the mini-crib-to-twin conversion described for the product.

See it on Amazon

Pros

  • Specific Emily and Kalani compatibility
  • Wood construction
  • Damp-cloth care instructions

Cons

  • Model fit needs checking before order
  • Mattress and box spring are sold separately

The Davinci Twin/Full Size Bed Conversion Kit is a focused choice for compatible Emily and Kalani cribs. Its wood rails convert a full-size crib to a full-size bed or a mini crib to a twin-size bed.

The product data names Emily M4791 and Kalani M5598/M5501 as compatible crib models. The manufacturer description also names several other DaVinci model numbers, so compare your exact crib model with the instructions before ordering.

The rails use 100% sustainable New Zealand pine wood and a non-toxic multi-step finish described as lead and phthalate safe. The Espresso color may matter if you want the conversion rails to coordinate with the crib.

The mattress and box spring are sold separately. Care is simple: wipe the rails with a damp cloth.

Choose it when you own a compatible Emily or Kalani crib and want an Espresso wood rail pair. For broader DaVinci-family compatibility, compare it with the first DaVinci pick.

Davinci Twin/Full Size Bed Conversion KitCheck it on Amazon
4

Soho Baby Chandler Crib to Full-Size Bed: Best for Chandler 4-in-1 cribs

Soho Baby Chandler Crib to Full-Size Bed, crib conversion kits for full-size beds
9.1/10Our score
  • Compatible with Chandler 4-in-1 Convertible Crib 44011530
  • Solid woods and wood veneers
  • Five included slats
  • Accommodates up to 400 lb as a full-size bed

The Chandler kit is the direct match for Soho Baby's Chandler 4-in-1 Convertible Crib. It includes hardware and five slats, and a Bunkie Board or box spring is recommended and sold separately.

See it on Amazon

Pros

  • Five slats included
  • Clear Chandler crib compatibility
  • GreenGuard Gold certified crib collection

Cons

  • Designed for one named crib model
  • Bunkie Board or box spring is sold separately

The Soho Baby Chandler Crib to Full-Size Bed is the direct choice for the Soho Baby Chandler 4-in-1 Convertible Crib, model 44011530. It is designed for the stage when a child moves from a crib, toddler bed or daybed into a full-size bed.

The kit uses solid woods and wood veneers and comes in Graphite Gray. It includes hardware and five slats.

As a full-size bed, it can accommodate up to 400 lb. A Bunkie Board or box spring is recommended and sold separately.

The Chandler collection has GreenGuard Gold certification, and the product data identifies the compatible Chandler crib model clearly. The kit also carries a 1 Year Limited Manufacturer’s Warranty.

Choose it for the Chandler 4-in-1 crib, especially if five included slats and a named model match matter to you. It is not the right choice for an unrelated Soho Baby crib.

Soho Baby Chandler Crib to Full-Size BedCheck it on Amazon
5

CC KITS Full-Size Conversion Kit Bed Rails: Best for listed Oxford, Soho and Ozlo models

CC KITS Full-Size Conversion Kit Bed Rails, crib conversion kits for full-size beds
8.9/10Our score
  • Solid wood rails
  • Hook-on and bolt-on compatibility groups
  • Four slats included
  • Supports up to 600 lb with additional slats

This kit covers many named Oxford Baby, Soho Baby and Ozlo Baby crib models, with separate hook-on and bolt-on groups. Check the model list and attachment type before choosing it.

See it on Amazon

Pros

  • Large named compatibility guide
  • Solid wood rails
  • Hardware and instructions included

Cons

  • Several named cribs do not fit
  • Additional slats are sold separately for the stated maximum support

The CC KITS Full-Size Conversion Kit Bed Rails cover a large group of Oxford Baby, Soho Baby and Ozlo Baby cribs. The compatibility guide separates hook-on models with 53.75 in slats from bolt-on models with 54 in slats.

Named hook-on models include Ashton, Beaumont, Bradley, Cascade, Chandler, Cottage Cove, Crestwood, Dallas, Elizabeth, Ellison, Essential 4-in-1, Everlee 4-in-1, Galloway, Glenbrook, Grandville, Hamilton, Hampton, Hanover, Harlow, Holland 4-in-1, Imperial, Kendra, Kenilworth, Langston, Lexington, London Lane, Manchester, Mayfield, Mid-Century Claremont, Mystic, New Haven, Park Ridge, Phoenix, Piermont, Promenade Park, Rhinebeck, Richmond, Ridgewood, Sanibel, Stone Haven, Stone Hill, Weston, Westport and Willowbrook.

The bolt-on group includes Arlie, Baldwin, Bennett, Briella, Castle Hill, Emerson, Farmington, Harper, Harper Crib & Changer Combo, Lazio, Logan, Montauk, Nolan, North Bay, Pearson, Pearson Crib & Changer Combo and other named models.

It does not fit several listed cribs, including Cozy Nest Island, Dawson, Essential Mini, Everest Island, Everlee 3-in-1, Everlee Island, Holland 3-in-1, Mari 3-in-1, Oakley, Omni 3-in-1 and Renwick. The kit includes two solid wood rails, four slats, hardware and instructions.

Choose it for a named Oxford Baby, Soho Baby or Ozlo Baby model after confirming hook-on or bolt-on attachment. The broad list helps, but the exclusions make model checking essential.

CC KITS Full-Size Conversion Kit Bed RailsCheck it on Amazon
6

Yuleimy Full to Queen Conversion Kit: Best for headboard mounting changes

Yuleimy Full to Queen Conversion Kit, crib conversion kits for full-size beds
8.7/10Our score
  • Four-piece headboard bracket kit
  • 0 to 4 in adjustment per side
  • Black alloy steel plates
  • Includes screws, washers and nuts

Yuleimy is not a crib rail kit. It changes headboard mounting points between compatible full and queen metal bed frames, so it belongs on this list only for shoppers comparing broader bed-conversion hardware.

See it on Amazon

Pros

  • Adjustable mounting slots
  • Hardware included
  • Alloy steel plates

Cons

  • Does not change the mattress support area
  • Headboard and bed frame are not included

The Yuleimy Full to Queen Conversion Kit is different from the crib rail kits above. It aligns a full headboard with a compatible queen metal bed frame, or the reverse, by changing headboard mounting points.

The four-piece kit uses black alloy steel plates with slots that adjust 0 to 4 in per side. It includes two conversion plates, four M6 x 62 mm screws, four M6 x 19 mm screws, eight washers and eight nuts.

This hardware does not change the mattress support area. Compare the metal frame's plate dimensions, hole pattern, construction and fastener needs before installation.

The headboard and bed frame are not included. For that reason, this is a useful comparison only if your search has expanded from crib conversion rails to general full-bed hardware.

Choose it for a compatible metal bed frame and headboard alignment problem, not for converting a convertible crib. It cannot replace model-matched crib rails.

Yuleimy Full to Queen Conversion KitCheck it on Amazon
7

Namesake Winston -Full Size -Bed Conversion Kit: Best for the Winston 4-in-1 crib

Namesake Winston -Full Size -Bed Conversion Kit, crib conversion kits for full-size beds
8.4/10Our score
  • Iron construction
  • Vintage Gold finish
  • Fits a 54 in box spring and mattress
  • Compatible with Winston 4-in-1 Convertible Crib M15301

This iron conversion kit is a model-specific match for the Namesake Winston 4-in-1 Convertible Crib. Its stated full-bed fit is based on a 54 in box spring and mattress.

See it on Amazon

Pros

  • Clear Winston crib compatibility
  • Iron construction
  • Non-toxic multi-step staining and painting process

Cons

  • Limited to the Winston crib model
  • The product data conflicts on the conversion description, so verify the intended stage before ordering

The Namesake Winston -Full Size -Bed Conversion Kit is made for the Winston 4-in-1 Convertible Crib, model M15301. It uses iron and has a Vintage Gold finish.

The kit fits a 54 in box spring and mattress. Its stated dimensions are 54 in W x 9 in H, and care calls for wiping with a damp cloth.

Namesake describes the finish as a hand-finished, non-toxic multi-step staining and painting process. The product data also describes the kit as converting the Winston crib into a full-size bed.

There is conflicting wording in the product information about a toddler-bed conversion, so confirm the intended conversion stage and current instructions before ordering. The exact Winston model match remains the key buying check.

Choose it for the Winston M15301 crib when the Iron and Vintage Gold design fit your nursery. Treat it as a model-specific choice rather than a general full-bed rail kit.

Namesake Winston -Full Size -Bed Conversion KitCheck it on Amazon
8

Oxford Baby Universal Full Bed Conversion Kit: Best for Oxford Baby Kenilworth owners

Oxford Baby Universal Full Bed Conversion Kit, crib conversion kits for full-size beds
8.2/10Our score
  • Two matching side rails
  • Five slat support pieces
  • Converts an Oxford Baby crib to a full-size bed
  • GreenGuard Gold certified

This Oxford Baby kit includes matching side rails and five slat supports for the Kenilworth full-bed conversion. It is sold separately from the crib.

See it on Amazon

Pros

  • Five slat support pieces
  • Matching side rails
  • Clear Kenilworth conversion use

Cons

  • Crib is sold separately
  • Model and finish should be matched before ordering

The Oxford Baby Universal Full Bed Conversion Kit suits Oxford Baby Kenilworth owners who need matching side rails and slat supports. It converts an Oxford Baby crib into a full-size bed with a headboard and footboard.

The kit includes two matching side rails and five slat support pieces. It is made from wood, comes in Stone Wash, and measures 76 x 2 x 5 in.

The product uses the model number 22288930 and is sold separately from the crib. The crib is also sold separately, so check that the furniture you already own matches the kit's model and finish.

The included slats hold the half box spring and full-size mattress. That makes support planning easier, but you still need to buy the mattress and the required box-spring setup separately.

Choose it for the Oxford Baby Kenilworth crib when Stone Wash matching rails and five support pieces suit your setup. Confirm the model before treating “universal” as a promise of broad crib compatibility.

Oxford Baby Universal Full Bed Conversion KitCheck it on Amazon

How we compared crib to full bed conversion kits

We compared model compatibility, rail material, included support parts and the clarity of the full-bed use. A high score goes to a kit that gives you a clear crib match and enough information to plan the rest of the bed.

Compatibility comes first because a full-size rail kit cannot help if its mounting points do not match your crib. The DaVinci and Namesake kits are strong when your exact crib is in the named model group, while the CC KITS options offer longer compatibility guides with important exclusions.

Included slats also affect setup. Soho Baby includes five slats, Oxford Baby includes five slat support pieces, and both CC KITS options include four slats.

Some maximum-support statements depend on additional slats sold separately.

Material is another useful tie-breaker. The DaVinci and Oxford Baby picks use wood, the CC KITS rails use solid wood, Soho Baby uses solid woods and wood veneers, and the Namesake Winston kit uses iron.

Scores weigh specs, features and buyer feedback against what you're shopping for. We did not treat a broad compatibility label as a substitute for checking the exact crib model.

ProductBest forMaterialFinishCompatibilityOur score
DaVinci Hidden Hardware Twin/Full-Size Bed Conversion Kitcompatible DaVinci-family cribs100% sustainable New Zealand pine woodNon-toxic, lead and phthalate safeSelect Babyletto, Babymod, Carter's by DaVinci, DaVinci and Million Dollar Baby Classic cribs9.7
CC KITS Full-Size Wood Conversion Kit Bed RailsBaby Cache model matchingListed Baby Cache convertible crib models with 54 in slats9.5
Davinci Twin/Full Size Bed Conversion KitEmily and Kalani crib owners100% sustainable New Zealand pine woodEmily M4791 and Kalani M5598/M5501 cribs9.4
Soho Baby Chandler Crib to Full-Size BedChandler 4-in-1 cribsGraphite Gray9.1
CC KITS Full-Size Conversion Kit Bed Railslisted Oxford, Soho and Ozlo models8.9
Yuleimy Full to Queen Conversion Kitheadboard mounting changes8.7
Namesake Winston -Full Size -Bed Conversion Kitthe Winston 4-in-1 cribIron8.4
Oxford Baby Universal Full Bed Conversion KitOxford Baby Kenilworth ownersWood8.2

Are crib conversion kits universal?

Most crib conversion kits are not truly universal because cribs use different rail connections, model dimensions and slat lengths. Read our guide on whether crib conversion kits are universal before choosing a kit from a different brand.

Even kits for the same brand can use different attachment methods. One crib may use hook-on connections while another in the same line uses bolt-on connections.

That difference controls how the side rails meet the headboard and footboard. It also affects whether the slats sit level across the frame, so a kit can look close in size and still be wrong for your crib.

Check these details before ordering:

  • Crib brand and exact model number
  • Full-size or mini-crib starting size
  • Hook-on or bolt-on attachment
  • Required slat length
  • Rail color and finish
  • Included rails, slats, hardware and instructions
  • Mattress, box spring or Bunkie Board requirements

The crib brand and model number should come first. They show whether a kit was designed for your furniture or only for furniture that shares a similar look.

Starting size comes next because a full-size crib and a mini crib lead to different results. Some kits turn a full-size crib into a full-size bed, while others turn a mini crib into a twin bed.

Attachment type is often missed. The CC KITS Oxford, Soho and Ozlo guide separates hook-on models with 53.75 in slats from bolt-on models with 54 in slats.

That half inch difference shows why exact checking matters. Rail color and finish also need a check, since matching helps the converted bed look like one piece of furniture.

Included parts should be read as a list rather than assumed. Some kits include rails, slats, hardware and instructions, while others leave extra support parts to plan for.

Support needs can change the total cost and the setup. A mattress, box spring or Bunkie Board may be sold separately even when the rails are complete.

A kit can suit one crib and fail on another. The CC KITS Oxford, Soho and Ozlo option separates hook-on and bolt-on groups and names models that do not fit.

Those exclusions stop you from forcing a rail set onto a crib built for another connection. Since cribs differ in key details, matching the exact model remains the safest approach.

What do you need for a crib to full bed conversion?

You usually need the compatible conversion rails, the crib's headboard and footboard, a full-size mattress and the support parts required by the kit. Some setups also need a box spring or Bunkie Board.

The DaVinci kits specify that the mattress and box spring are sold separately. Soho Baby recommends a Bunkie Board or box spring, while Oxford Baby includes slat support pieces for the half box spring and full-size mattress.

Before assembly, clear enough floor space to lay out the parts. Keep the hardware and instructions together, identify each rail by its attachment style, and tighten connections according to the manufacturer's instructions.

After assembly, check that the headboard, footboard, side rails and slats sit squarely. Do not substitute a different rail set just because the dimensions look close.

If you are still considering the earlier sleep stage, compare our best crib to toddler bed conversion kit guide. A toddler-bed rail and a full-bed rail solve different transition needs.

How do you choose the right full-size crib conversion kit?

Choose the kit by exact crib model first, then compare included slats, material, finish and support requirements. The best crib conversion kit to full bed is the one that matches your furniture without forcing an adapter or an unconfirmed rail connection.

Pick the DaVinci Hidden Hardware Twin/Full-Size Bed Conversion Kit for a compatible DaVinci-family crib and the broadest conversion flexibility. Pick the CC KITS Baby Cache rails for a named Baby Cache model and solid wood rails.

Choose the Soho Baby Chandler kit for the Chandler 4-in-1 crib, or the CC KITS Oxford, Soho and Ozlo kit when your exact model appears in its hook-on or bolt-on guide. The Oxford Baby kit is the focused choice for Kenilworth owners.

For a Winston crib, choose the Namesake kit only after confirming the model and conversion stage. For general full-to-queen headboard alignment, Yuleimy is the relevant hardware, but it is not a crib conversion kit.

Owners of Dream On Me cribs should compare our guide to Dream On Me crib conversion kits instead of assuming one of these rails will fit.

Final verdict on the best crib conversion kit full bed

The best crib conversion kit full bed pick is the DaVinci Hidden Hardware Twin/Full-Size Bed Conversion Kit for compatible DaVinci-family cribs. Its full-bed and twin-bed paths, New Zealand pine wood and named brand compatibility give it the strongest overall fit.

That verdict puts fit before style. A conversion kit works only when the rails, slats and hardware match the crib you already own.

The DaVinci kit suits buyers whose full-size crib is in the select Babyletto, Babymod, Carter's by DaVinci, DaVinci and Million Dollar Baby Classic group. It also suits mini crib owners who want the twin bed path.

Its wood build and non-toxic multi-step finish, described as lead and phthalate safe, suit a nursery being reused as a bedroom. Wipe the rails with a damp cloth and check the connections as part of normal care.

The main trade-off is that the mattress and box spring are sold separately. You are buying the conversion frame, not a complete bed.

Choose CC KITS when its guide names your Baby Cache, Oxford Baby, Soho Baby or Ozlo Baby crib. The Baby Cache guide lists many models and also names models that do not fit.

The CC KITS Oxford, Soho and Ozlo kit splits hook-on models with 53.75 in slats from bolt-on models with 54 in slats. That split helps you pick the right version before you order.

Both CC KITS options include solid wood rails, hardware and instructions. Their stated support of up to 600 lb depends on additional slats sold separately, so read that condition with care.

Choose Soho Baby for the Chandler 4-in-1, Namesake for the Winston and Oxford Baby for the Kenilworth. Each kit is tied to a specific crib model or collection.

The Soho Baby Chandler kit includes hardware and five slats and can hold up to 400 lb as a full-size bed. A Bunkie Board or box spring is recommended and sold separately.

The Namesake Winston kit uses iron in Vintage Gold and fits a 54 in box spring and mattress. Confirm the current instructions and intended stage before ordering, since the wording covers more than one stage.

The Oxford Baby Kenilworth kit includes two matching side rails and five slat supports in Stone Wash. The slats hold the half box spring and full-size mattress, while the crib is sold separately.

Yuleimy sits in another category because it aligns a full headboard with a compatible queen metal frame. It changes headboard mounting points and cannot replace crib rails.

For setup, lay out the rails, slats and hardware first. Confirm which parts join the headboard and footboard, tighten the connections squarely and check the frame before adding support.

Before you order, match the exact crib model, attachment type, slat length and support parts. If your crib is not named, contact the brand or kit maker instead of guessing.

If you need a crib that already includes the full-bed stage, see our guide to best convertible cribs that become full-size beds. Starting with the right crib can make the later conversion far simpler.

Our top 3 picks at a glance

  1. 1 DaVinci Hidden Hardware Twin/Full-Size Bed Conversion Kit
    Best for compatible DaVinci-family cribs

    DaVinci Hidden Hardware Twin/Full-Size Bed Conversion Kit

    9.7/10 our score

    See it on Amazon
  2. 2 CC KITS Full-Size Wood Conversion Kit Bed Rails
    Best for Baby Cache model matching

    CC KITS Full-Size Wood Conversion Kit Bed Rails

    9.5/10 our score

    See it on Amazon
  3. 3 Davinci Twin/Full Size Bed Conversion Kit
    Best for Emily and Kalani crib owners

    Davinci Twin/Full Size Bed Conversion Kit

    9.4/10 our score

    See it on Amazon

Frequently asked questions

What is the best crib conversion kit for a full bed?

The DaVinci Hidden Hardware Twin/Full-Size Bed Conversion Kit is the strongest overall pick for a compatible DaVinci-family crib because it supports a full-size bed conversion and uses sustainable New Zealand pine wood. For other cribs, choose the kit whose compatibility guide names your exact brand and model.

Are crib conversion kits universal for full beds?

No. Most crib conversion kits are model matched, even when a product uses the word universal.

Check the crib brand, model number, attachment style, slat length and finish before ordering.

A kit for one convertible crib may not align with another crib from the same brand.

Do full-bed crib conversion kits include a mattress?

Usually, you should plan to buy the full-size mattress separately. The DaVinci kits specify that the mattress and box spring are sold separately, while the Soho Baby Chandler kit recommends a Bunkie Board or box spring that is also sold separately.

What should I check before converting a crib to a full bed?

Confirm the exact crib model, rail attachment type, finish, slat requirements and bed-support parts. Measure the available room and check whether the kit includes rails, slats, hardware and instructions.

Also confirm whether a mattress, box spring or Bunkie Board is separate.

Can any crib become a full-size bed?

No. A crib can become a full-size bed only when its design supports that stage and a compatible conversion kit is available.

Check the crib instructions and the conversion kit's model guide.

If your crib is not named, contact the brand or kit manufacturer before ordering.