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7 Best Crib-to-Full-Bed Conversion Kits (October 2026)

Updated on · By the Heaven Baby Crib team

The best crib conversion kits for full-size beds include the DaVinci Hidden Hardware Twin/Full-Size Bed Conversion Kit for select DaVinci and partner cribs, the CC KITS Full-Size Wood Conversion Kit Bed Rails for listed Baby Cache models, and the Davinci Twin/Full Size Bed Conversion Kit for Emily and Kalani cribs.

On this page (8 sections)
  1. How we chose these crib-to-full-bed conversion kits
  2. Full-size crib conversion kit comparison
  3. The best crib conversion kits for full-size beds
  4. What should you check before buying a full-bed crib conversion kit?
  5. Do full-size conversion kits include a mattress or box spring?
  6. Is a crib-to-full-bed conversion kit universal?
  7. How do you know when a full-size conversion kit is the right next step?
  8. Which crib-to-full-bed kit should you choose?

The DaVinci Hidden Hardware Twin/Full-Size Bed Conversion Kit is the best crib conversion kit for a full bed when you have a compatible crib. For other brands, match the kit to your crib's exact model and rail style, since a full-size conversion kit is not a universal part.

A full-size conversion kit lets you reuse the crib's headboard and footboard as a bed frame, if the crib maker designed it for that purpose. Our picks include model-specific kits and third-party rails with brand compatibility guides.

For a broader overview of the best crib conversion kit options, start with the crib brand and model number. If you're considering a Babyletto, check which Babyletto crib conversion kit matches your crib.

Our picks at a glance

  1. 1 DaVinci Hidden Hardware Twin/Full-Size Bed Conversion Kit
    Best for select DaVinci and partner 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 listed Baby Cache models

    CC KITS Full-Size Wood Conversion Kit Bed Rails

    9.6/10 our score

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

    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 the Chandler 4-in-1 crib
    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 cribs
    Check it
  3. 6Namesake Winston -Full Size -Bed Conversion Kit

    Namesake Winston -Full Size -Bed Conversion Kit

    Best for the Winston 4-in-1 crib
    Check it
  4. 7Oxford Baby Universal Full Bed Conversion Kit

    Oxford Baby Universal Full Bed Conversion Kit

    Best for a matching Oxford Baby crib
    Check it

How we chose these crib-to-full-bed conversion kits

The right kit is the one confirmed for your crib model, with the parts your bed setup needs. We compared the compatibility notes, rail materials, included slats and stated weight limits available for these seven kits.

A brand name alone is not enough to confirm fit. Some kits name one model, while third-party options list many models and exclude others.

Check your crib's model label and manual, then compare both with the kit's compatibility guide.

We also checked what each kit says is included. Some provide support slats, while mattress, box spring or bunkie board needs can vary.

Our score weighs specs, features and buyer feedback against what you're shopping for.

Full-size crib conversion kit comparison

The DaVinci kits cover select partner cribs, while the third-party options target named brand families and models. Use this table to identify candidates, then verify the exact crib model and setup requirements.

ProductBest forOur score
DaVinci Hidden Hardware Twin/Full-Size Bed Conversion Kitselect DaVinci and partner cribs9.7
CC KITS Full-Size Wood Conversion Kit Bed Railslisted Baby Cache models9.6
Davinci Twin/Full Size Bed Conversion KitEmily and Kalani cribs9.4
Soho Baby Chandler Crib to Full-Size Bedthe Chandler 4-in-1 crib9.1
CC KITS Full-Size Conversion Kit Bed Railslisted Oxford, Soho and Ozlo cribs8.9
Namesake Winston -Full Size -Bed Conversion Kitthe Winston 4-in-1 crib8.4
Oxford Baby Universal Full Bed Conversion Kita matching Oxford Baby crib8.2

The best crib conversion kits for full-size beds

These kits convert compatible cribs into full-size beds, but each has a different fit range and setup. Start with your crib's model number before comparing materials or included slats.

1

DaVinci Hidden Hardware Twin/Full-Size Bed Conversion Kit: Best for select DaVinci and partner cribs

DaVinci Hidden Hardware Twin/Full-Size Bed Conversion Kit, crib conversion kits for full-size beds
9.7/10Our score
  • Wooden rails
  • Full-size crib to full-size bed
  • Mini crib to twin bed
  • Compatible with select Babyletto, Babymod, Carter's by DaVinci, DaVinci, and Million Dollar Baby Classic cribs

This wooden rail kit supports full-size conversion for compatible cribs and twin-bed conversion for compatible mini cribs. Check your exact crib model and finish before choosing it.

See it on Amazon

The DaVinci Hidden Hardware kit is the strongest fit in this group for owners of a compatible full-size crib who want a wooden rail set. DaVinci says it also converts a compatible mini crib into a twin bed, so the kit serves different bed sizes depending on the crib.

Its compatibility list covers select Babyletto, Babymod, Carter's by DaVinci, DaVinci and Million Dollar Baby Classic cribs. That broad family list does not confirm every crib from those brands, so check the exact model before ordering.

DaVinci identifies the rails as 100% sustainable New Zealand pine and says the finish is a non-toxic, multi-step paint process that is lead and phthalate safe. The full-size bed mattress and box spring are separate.

Choose this kit if your crib model is confirmed compatible and you want the DaVinci rail set. If you have a Babyletto crib, compare model details in our guide to the Babyletto crib conversion kit.

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

CC KITS Full-Size Wood Conversion Kit Bed Rails: Best for listed Baby Cache models

CC KITS Full-Size Wood Conversion Kit Bed Rails, crib conversion kits for full-size beds
9.6/10Our score
  • Solid wood rails
  • Four 54 in slats
  • Compatible with many Baby Cache crib models
  • Supports up to 600 lb with additional slats sold separately

A broad Baby Cache compatibility guide helps narrow the fit, and the kit includes four 54 in slats. Confirm the crib is not one of the listed exclusions and check whether you need additional slats.

See it on Amazon

This CC KITS set fits many Baby Cache crib models with 54 in slats, including Adelina, Collins, Contempo, Covington, Eastport, Kensington and Windsor. The compatibility guide also names several other models, so compare the full model list with your crib before choosing it.

The kit includes two solid wood bed rails, four 54 in slats, hardware and instructions. CC KITS says it supports up to 600 lb when paired with additional slats sold separately, so the included slats alone should not be assumed to meet that capacity.

The fit exclusions matter: this set is not compatible with Cape Cod, Hudson, Portland, Tahoe or Uptown cribs. CC KITS says the finish is water-based and free from lead and phthalates, and offers a lifetime warranty.

Choose it when your Baby Cache crib is named in the compatibility guide and you have confirmed the required slat setup. For other brand-specific kits, compare our best Storkcraft crib conversion kit options.

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 cribs

Davinci Twin/Full Size Bed Conversion Kit, crib conversion kits for full-size beds
9.4/10Our score
  • New Zealand pine wood
  • Full-size crib to full-size bed
  • Mini crib to twin bed
  • Compatible models include Emily and Kalani

This DaVinci kit is a model-specific option for Emily and Kalani cribs, with full-size and mini-crib conversion uses. Confirm your crib model and finish before ordering.

See it on Amazon

The DaVinci Twin/Full Size kit is a model-specific option for the Emily and Kalani crib families. The product details name Emily and Kalani models, while the manufacturer description also names Jamie, Richmond, Anastasia, and several mini crib models, so confirm your exact model and intended bed size.

DaVinci says the rails are made from 100% sustainable New Zealand pine and finished with a non-toxic, multi-step painting process that is lead and phthalate safe. The full-size mattress and box spring are sold separately.

The product title identifies the Espresso finish. Its description also names crib models beyond the two in the compatibility bullets, which makes checking the crib manual or contacting DaVinci useful before buying.

Choose these rails when the model and finish match your crib. Our best DaVinci crib conversion kit guide covers more options from that brand.

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

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

Soho Baby Chandler Crib to Full-Size Bed, crib conversion kits for full-size beds
9.1/10Our score
  • Compatible with Soho Baby Chandler 4-in-1 Convertible Crib 44011530
  • Five support slats
  • Up to 400 lb capacity
  • One-year limited warranty

The Chandler kit is made for one named crib model and includes five slats and assembly hardware. A bunkie board or box spring is recommended and sold separately.

See it on Amazon

The Soho Baby Chandler conversion kit is designed for the Chandler 4-in-1 Convertible Crib, model 44011530. It includes hardware and five slats, and measures 76 x 2 x 5 in.

Soho Baby says the kit can support up to 400 lb as a full-size bed and includes a one-year limited manufacturer warranty. The maker recommends using a bunkie board or box spring, sold separately, with the kit.

The kit is made from solid woods and wood veneers. Its Graphite Gray finish is part of the Chandler collection, which also comes in Stone Wash.

Don't assume that either finish or this kit fits another Soho Baby crib.

Choose this kit for the named Chandler crib when you want the five-slat bed frame setup. For an alternative that covers several crib families, check whether the Oxford, Soho and Ozlo conversion kit compatibility guide includes your model.

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 cribs

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

Separate hook-on and bolt-on guides cover many Oxford Baby, Soho Baby and Ozlo Baby models. Check the crib's attachment style, model and exclusions before choosing this kit.

See it on Amazon

This CC KITS option covers many Oxford Baby, Soho Baby and Ozlo Baby cribs through separate hook-on and bolt-on compatibility guides. Hook-on models use 53.75 in slats, while bolt-on models use 54 in slats.

The hook-on list includes Chandler, Ashton, Beaumont, Bradley and several other models. The bolt-on guide names Arlie, Baldwin, Bennett, Emerson and others.

The kit excludes models such as Cozy Nest Island, Dawson, Essential Mini and Oakley, so check the complete guide before ordering.

It includes two solid wood rails, four slats, hardware and instructions. CC KITS says the kit supports up to 600 lb with additional slats sold separately, and offers a lifetime warranty.

Choose this set only after confirming your crib's model and attachment style. If you're looking at a Delta crib instead, use our guide to the best Delta Children crib conversion kit.

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

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
  • Compatible with Winston 4-in-1 Convertible Crib M15301
  • Fits a 54 in box spring and mattress

This iron kit is a specific fit for the Namesake Winston 4-in-1 crib. Its stated mattress and box spring size is 54 in, so verify your bed setup before buying.

See it on Amazon

The Namesake Winston kit is for the Winston 4-in-1 Convertible Crib, model M15301. The rails are made from iron and are stated to fit a 54 in box spring and mattress.

Namesake describes the finish as hand-finished in a non-toxic, multi-step staining and painting process. Its product description refers to converting the Winston crib into a toddler bed, while the title and compatibility bullets describe a full-size bed kit, so confirm the intended setup with Namesake before buying.

This is a narrower choice than multi-model compatibility kits, but it gives Winston owners a model-specific option. Check the crib's model number and whether the bed components you plan to use match the kit's 54 in size note.

Choose it if you have the exact Winston crib and have confirmed the full-bed conversion details. For a smaller transition, compare the best crib-to-toddler-bed conversion kits.

Namesake Winston -Full Size -Bed Conversion KitCheck it on Amazon
7

Oxford Baby Universal Full Bed Conversion Kit: Best for a matching Oxford Baby crib

Oxford Baby Universal Full Bed Conversion Kit, crib conversion kits for full-size beds
8.2/10Our score
  • Wood rails
  • Five support slats
  • Converts an Oxford Baby crib to a full-size bed

The kit includes five support slats for a half box spring and full-size mattress. Check with Oxford Baby that it matches your exact crib model and finish.

See it on Amazon

The Oxford Baby Universal Full Bed Conversion Kit is a wood option for converting an Oxford Baby crib to a full-size bed. Its description names the Kenilworth kit and says it uses two matching side rails and five support slats.

Oxford Baby says the slats hold up a half box spring and full-size mattress. The kit is sold separately from the crib, and its finish is Stone Wash.

The word “Universal” in the name does not confirm compatibility with every Oxford Baby crib. Check the crib model, finish and manual with Oxford Baby before ordering, especially if your model is not Kenilworth.

Choose it when Oxford Baby confirms the kit fits your crib and your bed setup uses the half box spring and mattress described. The best Storkcraft conversion kit guide offers a separate starting point for owners of that brand.

Oxford Baby Universal Full Bed Conversion KitCheck it on Amazon

What should you check before buying a full-bed crib conversion kit?

Check your crib's exact model, rail connection style and finish before buying a conversion kit. A kit that fits a similar crib from the same brand may still use different attachment points or slat lengths.

Find the model number on the crib label or in its manual. Then compare it with the kit's compatibility guide, including exclusions.

If the model is missing or the rail style is unclear, ask the crib maker to confirm the right kit.

Confirm what's included and what your bed frame requires. The kits here vary in slat count, and some recommend or require a separate mattress support such as a box spring or bunkie board.

Also check the hardware and instructions before assembly. Don't use rails that are damaged, altered or missing fasteners, and contact the manufacturer if the parts do not fit as intended.

Do full-size conversion kits include a mattress or box spring?

Most conversion kits are rails and support parts, so plan on buying the mattress separately. DaVinci says its mattress and box spring are sold separately, while Soho Baby recommends a bunkie board or box spring for its Chandler kit.

The Oxford Baby kit description says its slats support a half box spring and full-size mattress. Needs vary by frame, so confirm the setup in the crib manual and the conversion kit instructions before buying bedding or support parts.

Is a crib-to-full-bed conversion kit universal?

No, a crib-to-full-bed conversion kit is not universal. Compatibility depends on the crib's model and, for some kits, the rail attachment style and slat length.

Third-party kits may cover many models, but those lists can include exclusions. For a single-brand alternative, see our best crib conversion kit guide, then verify the model number against the manufacturer's current guidance.

How do you know when a full-size conversion kit is the right next step?

A full-size kit is the right option when your child has outgrown the crib setup and you want to reuse its compatible headboard and footboard. The child's readiness and the crib maker's conversion instructions should guide the timing.

If you're deciding between a full bed and a smaller transition, compare a toddler-bed conversion kit. For crib feature terms you may see in product descriptions, our guide explains bubble spindles on a crib.

Which crib-to-full-bed kit should you choose?

Choose the DaVinci Hidden Hardware kit if DaVinci confirms it fits your crib, or select one of the model-specific kits for Chandler, Winston or Oxford Baby. Baby Cache and many Oxford, Soho and Ozlo owners can compare the CC KITS guides, then verify the precise model and rail style.

For replacement parts, use the brand and model to find the right hardware as well. Our guide to Babyletto Hudson crib hardware explains how to approach a parts match.

Our top 3 picks at a glance

  1. 1 DaVinci Hidden Hardware Twin/Full-Size Bed Conversion Kit
    Best for select DaVinci and partner 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 listed Baby Cache models

    CC KITS Full-Size Wood Conversion Kit Bed Rails

    9.6/10 our score

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

    Davinci Twin/Full Size Bed Conversion Kit

    9.4/10 our score

    See it on Amazon

Frequently asked questions

How do I choose a crib conversion kit for a full bed?

Choose a kit made for your exact crib brand and model, then confirm the rail attachment style and finish. Crib conversion kits are not universal, even when they serve the same full-size bed purpose.

Check whether the kit includes slats and whether it calls for a box spring or bunkie board.

Can any crib convert to a full-size bed?

No. Only convertible cribs designed to use a full-size conversion kit can make that transition, and the kit must fit the specific crib.

Check the crib manual or manufacturer support for the model number and approved kit before buying rails.

Do full-bed crib conversion kits include a mattress?

Usually, the mattress is a separate purchase, and some setups also need a box spring or bunkie board. DaVinci says its mattress and box spring are sold separately, while Soho Baby recommends a bunkie board or box spring for the Chandler kit.

Check what your chosen kit requires.

How do I know whether a crib rail kit fits?

Match the brand and model number against the kit's compatibility guide, then confirm whether the crib uses hook-on or bolt-on rails when relevant. Check finish availability too, since some kits are offered in specific colors.

If your model is missing from a guide, ask the manufacturer before ordering.

Are full-size bed conversion kits safe for children?

Use only a kit approved for your crib, and assemble it according to its instructions. Confirm that every rail, slat and fastener is present and secure before use.

Follow current safety guidance for the child's age and sleep setup, and contact the crib maker if any parts or fit details are unclear.