$14.99 Pack
In stock

Headboard And Footboard Adapter Conversion Plates

Item #
82% of 100

These plates allow you to use a queen sized mattress with full sized head and foot boards. Great for use with antiques. Use with bolt-on frames. Package contains enough plates for one bed (set of 4 plates).

(4) Plates
More Information
Brand Rockler
Manufacturer Part Number No
Weight 1.2500
Tech Spec
  • Thickness: 3/32''
  • Width: 4-3/8''
  • Height Overall: 4-1/8''
Tech Docs No
Hardware Type Bed Rail Brackets
Hardware Style No
Mount No
Prop 65 WarningWARNING: Cancer & Reproductive Harm - www.P65Warnings.ca.gov

4.1 / 5.0
34 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Easy to install. Work perfectly! 2nd time I have used these plates...the best!
August 30, 2018
1 month ago
Very satisfied
Works great. Extended the width of the footboard so the mattress finally lays flat. Couldn't be happier with this solution to my problem.
August 15, 2018
1 month ago
Woodworking Experience:
Full to queen size
Worked super great! You have to have your own screws S it does not. One with any
August 7, 2018
2 months ago
As advertised.
Timely delivery. Item as described; works fine. Note that bolts are not included, so you if you don't already have some you will need to buy.
July 28, 2018
2 months ago
Woodworking Experience:
Adapter plates
Called many mattress shops trying to locate them, none had them. Rockier had many in stock
June 3, 2018
4 months ago
Woodworking Experience:
Rockler headboard adapter
Purchased the headboard adapter plates after buying an antique full sized headboard. Took all of 10 minutes. Attached the plates to my queen bed frame. Marked where the new headboard would be attached and used a 5/16 drill bit for the holes. Used 1/4 in bolts. You just need to determine the length of the bolts depending on the thickness of the headboard legs. Highly recommend!
March 21, 2018
6 months ago
Woodworking Experience:
Adapter plates for bed headboard
Just what I needed to retrofit a full size head and footboard to a new queen size bed frame. Had multiple openings to easily adapt from new bed frame to head and foot boards.
December 27, 2017
Woodworking Experience:
Headboard adapter
Great product, easy to install/
July 31, 2017
1 year ago
Woodworking Experience:
Great product
Just what we needed. Worked like a charm. We recommend Rockler to everyone.
July 12, 2017
1 year ago
They worked great.
March 3, 2017
1 year ago
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Browse 66 questions Browse 66 questions and 108 answers
Why did you choose this?
Rockler Store
It didn't appear that you had a proper solution (one that utilized the pins already found in the bedset legs) so I went with what appeared to be the next best option.
Ed B on Sep 16, 2018
this looked like exactly what we needed.
Jeannine Suitors U on Sep 12, 2018
It didn't appear that you had a proper solution (one that utilized the pins already found in the bedset legs) so I went with what appeared to be the next best option.
Ed B on Sep 16, 2018
Need to fit some oversized twin mattresses to older twin frame.
Craig R on Sep 16, 2018
this looked like exactly what we needed.
Jeannine Suitors U on Sep 12, 2018
Others had very favorable comments and the price was right.
don B on Aug 14, 2018
good other customer reviews... seems that it will meet our needs exactly.
Richard M on Jul 7, 2018
Trying to convert an antique 3/4 to full
Marianne V on Jul 1, 2018
I need this to convert an antique full bed frame to queen.
John C on Jun 21, 2018
need to extend width of frame to accommodate queensize matress
william v on Jun 21, 2018
Rockler provided a simple and economical solution to my guest bed problem.
Sallie B on Jun 1, 2018
We are converting a full size head & foot board to fit a modern queen size mattress & box spring.
PAUL A on May 12, 2018
I need to convert an antique Jenny Lind rope bed into a queen. Hope this works.
Jane W on May 7, 2018
Need to extend size of full antique mission oak bed to a queen. We will see if this works! Rockler has always come through in the past!
Melissa B on May 6, 2018
You were only one with support leg I had confidence in.
Allen K on Apr 2, 2018
Need to convert antique bed.
Jacqueline N on Mar 22, 2018
I need to extend a full size bed frame to a queen size
DOROTHY J G on Mar 12, 2018
For my antique, full-sized, bed frame that I need to convert to a queen.
Ashley S on Mar 12, 2018
I need to convert a 3/4 antique bed for a full size mattress.
Christie J on Mar 5, 2018
I needed something to retrofit a full size antique metal bed to a queen and came across these. Perfect!
PAMELA M on Mar 4, 2018
Adapting two headboards for my daughter - these should work perfectly. Love the price!
Harvey O on Mar 3, 2018
Have been looking for this for sometime.
Catherine K on Feb 16, 2018
To convert a full antique bed to a queen...
Bet M on Feb 2, 2018
I need to convert an antique full bed to queen size
DONNA S E on Dec 4, 2017
It look like a great product
michael R on Dec 2, 2017
i inherited my mothers antique full size bed and want to convert it to use with my current queen foundation. Hope this is all I need to complete the job.
Deborah M G on Nov 26, 2017
Want to convert a full-size antique bed to queen-size.
Ronald D on Nov 9, 2017
We want to convert an antique 3/4 bed to a full size bed.
Margaret J on Jul 3, 2017
I needed it to utilize my twin size headboard
Stacy A on Jun 20, 2017
JOHN M on May 8, 2017
I wanted to upgrade from a full size bed to a queen size bed.
Jane G on Apr 3, 2017
Converting antique bed to full size
Jeffrey J on Mar 2, 2017
It seems from the picture exactly what I need to utilize a full size headboard with a queen size frame.
Rick A on Jan 12, 2017
To convert full size bed to queen size.
Antonio G on Jan 6, 2017
getting a larger queen mattress for a full bed frame
Peggy G on Jan 3, 2017
I need a regular bed frame to hook to the headboard and foot board because the spot broke where rails hooked into it
Tara P on Nov 30, 2016
I inherited 2 lovely bedroom suits with regular size beds. I have queen size mattresses and hope this works!
Jennifer G on Nov 5, 2016
trying to make antique wood full size bed frame fit a new queen mattress.
Michelle R on Oct 2, 2016
I am hoping it works!
Georgina R on Oct 1, 2016
JOY C on Aug 2, 2016
Convert full size headboard to queen size frame
Richard A on Jul 27, 2016
I bought a beautiful sleigh bed at an auction, but when I got it home realized that it was a 3/4 size bed. ( which is bigger than a twin and smaller than a full) I want a full mattress for this. So hopefully this will do the trick
Linda G on Jul 1, 2016
Excellent way to convert a youth bed to a full size bed.
Marllin S on Jun 8, 2016
I inherited an antique full size bed and want to use it with a queen size mattress.
Diane L on Jun 7, 2016
Needed this item to make full headboard fit queen frame and price was great.
Sarah H on Jun 5, 2016
I am converting an antique full size bed for use with a queen size mattress.
Kathy B on Jun 1, 2016
Wanted to convert antique double bed to queen size. Hope it works.
Mary L on May 25, 2016
Converting full size bed frame to queen size
Tina M on Apr 5, 2016
To make a full size headboard fit a queen mattress.
Monica H on Mar 18, 2016
I need to adapt a modern bed frame to an antique headboard and footboard.
Rhoda R on Jan 31, 2016
I liked the bed we have, however it in in a weekend house and a queen bed seemed a better alternative. Seems we can convert with a screwdriver!
Robert M on Oct 31, 2015
I need to attach a full/queen headboard to a queen size bedframe and this item is exactly what I have been looking for. Thank you.
Linda B on Sep 27, 2015
Need to fit some oversized twin mattresses to older twin frame.
Craig R on Sep 16, 2018
Others had very favorable comments and the price was right.
don B on Aug 14, 2018
I have a full wrought iron headboard that needs to be attached to a queen size bedframe. Will this extender work?
A shopper on Aug 19, 2015
Can I convert a 3/4 bed with antique headboard and footboard to full size using these?
Susie on Aug 24, 2016
will these brackets allow me to adjust Cal King mattress to King headboard and frame?
Kevin D on May 23, 2015
With these work to convert a California King headboard and footboard to an Eastern King?
Rare E on Jul 7, 2016
can you use this with a queen sized headboard and a full bedframe?
Kristina J on Feb 22, 2017
we installed the conversion plates to make our full frame into a queen. There is so much wobble we cannot use it. and yes the bolts are tight. How should we stablize the frame?
Gail C on Dec 23, 2017
I have an antique bed frame that doesn't fit modern sizes. I use a full-sized mattrest and just the headboard right now. Is there something similar that would work with hooks instead of bolts?
A shopper on Apr 28, 2015
BEST ANSWER: Sorry no, we do not have any similar brackets to offer for use with hooks.
Will this product accommodate 5/16" bolts, or only 1/4" bolt?
Barb B on Aug 23, 2015
BEST ANSWER: Only 1/4 "
I'm looking for a double hook on mechanism that can be used for a full size bed and a queen size bed. Both parts have to be hook on. Any thoughts?
bobbi k on Dec 4, 2016
BEST ANSWER: Debbi, I used to work in the bedding industry, and I have also purchased the double hook-on mechanism for my daughter's bed. Let me say that there are places that sell the frames with the hooks already welded on. The Rockler people can let you know if they have such an item. If that would work with your situation, I'd recommend doing that. The adapters are very difficult to tighten and keep hooked into your headboard/footboard.
My bed has hook on wood side rails. Can I use these?
Susan M on Jul 28, 2017
BEST ANSWER: No, you will need to buy a queen size metal frame, with headboard and foot board attachment points.

Your headboard and foot board become ornamental, not structural.
Can I lower the height on a king metal bed.? ..
A shopper on May 2, 2015
BEST ANSWER: You should be able to do so, simply drill new attachment holes below the level of the present ones.
Can the conversion plates be reversed so that my queen size headboard can be attached to my full
size frame?
Kyle H on Aug 26, 2017
BEST ANSWER: Yes that's why I bought them for the same exact reason!
I am looking to use a 3/4 antique head and footboard with twin size mattresses. Will this work?
Erin R on Jul 1, 2016
BEST ANSWER: If the side rails are intended to bolt to the headboard then yes. If the side rails have tabs that fit into slots in the headboard the answer is no.
Will this adapter work to attach a full size brass headboard to a queen size bedframe w/mattress?
Nita O on Jan 30, 2017
BEST ANSWER: If your brass headboard has round legs it definitely will not work. a full size bed is 54" wide vs a queen at 60". Each bracket would need to cover an extra 3 inches. I would recommend attaching a 1"x 4" across the top of the queen frame, then fasten this to the brass headboard. Also I would make sure that your frame has 4 legs so that the weight is properly supported as well.
How does these brackets make bed longer?
Elsie D on Sep 30, 2016
BEST ANSWER: Hi Elsie, The brackets do not make the bed longer. If you are using them to make a queen out of a double, the length is the same for a queen and double. A queen is only 6" wider than a double (3" on each side) so you don't even notice that the headboard is not as wide as the mattress. A king size bed is 72" wide, while a queen is 60". These brackets would not work very well I don't think. Hope this helps.
Is it possible to convert a twin size headboard into a queen size using your attachment pieces. My daughter is buying a quee. Size bed but doesn’t have the money for a whole furniture set so we were wondering if we can use what she has and just use the attachment pieces to make it larger?!
Mary C on Aug 25, 2018
BEST ANSWER: Adapter 32236 is made to go from Full to Queen which is a change of 7 inches in total width. Adapting from Twin to Queen is a change of over 20 inches and that will not work with these adapters. Also, there might be an appearance problem with such a combination.
What purpose does the embossed "X" in the middle of the plate serve? Your diagram shows the raised part of the X away from the wooden frame. Other installer appears to have the raised X next to the wooden frame. Directions on plate says "this side to frame"...that is the recessed X side. What frame?....the headboard frame? or the metal rail frame?...kind of sort of confusing?
don B on Aug 21, 2018
BEST ANSWER: I purchased this kit of bed frame extensions. As far as I can tell, the embossed “X” on one side of the extenders is just to help you keep all sides of the extenders on either the inside or outside of the bed frame as you assemble the expanded or shortened bed. Just a courtesy to prevent you from assembling the new bed and finding out that you have installed one corner incorrectly.
Will this work with no bolt side rails?
Jacqueline N on Mar 17, 2018
BEST ANSWER: I don’t think so. The plates are made to bolt to the headboard and then you bolt the bedframe to the plates. We comverted a full size bed to a queen size and they worked great, but again we had bolt holes for the frame and headboard.
I have a queen size wooden frame bed(headboard, footboard, and side rails). Is there a bracket that can help me convert it for the use a full size box spring and mattress set?
Marina G on Mar 16, 2017
BEST ANSWER: These brackets are designed to make a headboard/footboard wider. I don't know if they will work to make a queen headboard/footboard narrower to accommodate a full size mattress. Most people seem to want to make a full size bed into a queen size bed, not the other way around!
Can I use these extenders I have queen wanted to make it king ?
Kim S on Oct 22, 2016
BEST ANSWER: Doubt it, they do not extend that wide. Also, bc they hit so low on the headboard, it makes your headboard a little wobbly, but it did the trick for us when we couldn't use our existing bed rails.
Will I have to drill holes in my bed or are one side of the plates have the hooks that go into the legs?
John B on Aug 18, 2016
BEST ANSWER: I used the adaptors to convert a double bed headboard for a queen size bed. I did not have to drill any holes in anything. The adaptor provides plenty of wiggle room to fit the rails. However I just attached the headboard to a "harvard" bed frame and did not use the side rails or foot board. I've recommended these adaptors to several antique shops in my area that have many double bed frames for sale that no one wants. I have referred the Rockler website to the dealers.
If I install these adaptor plates on the head and foot board of my full size bed, since the queen size mattress and spring are about 5 inches longer than a full size, will I need different bed rails for the queen size?
James B on Aug 21, 2018
My headboard is wider than my metal bed frame. There are 62 inches between the slots on the headboard and the bed frame is about 58 inches wide. Will these adaptors work?
Mike D on Jul 18, 2018
BEST ANSWER: I think these adapters will work for you. There is at least a 2" "give" on each adapter. My headboard is 3-4 inches narrower than the bed frame and these worked like a charm.
Can I convert a queen headboard an foot board to king?
Shelly L on Jul 6, 2018
BEST ANSWER: I have not made the conversion yet. Sorry.
I have a queen size mattress with a head and foot board. The kind that just slides into the slits in the head and foot board. Will these work with mine?
Stick on Feb 6, 2018
BEST ANSWER: Sorry no, this is for bolt on style.
will this convert a king to ca king?
pam a on Oct 10, 2017
BEST ANSWER: No, cal kings are just longer.
Can I still use the wooden side rails? Show me how this works
Judy P on Aug 15, 2017
BEST ANSWER: This product is designed to relocate the bolt holes in the head and foot boards outward to accomodate a larger matress. If your side rails BOLT onto the head and foot boards, the product illustration shows you what you need to do. If the rails use hooks to connect, this product alone will not solve your problem.
Can this be used to adapt a hook-on full headboard to a bolt on bed frame?
Grace L on Jun 15, 2017
BEST ANSWER: Not sure what you mean by a "hook on" headboard. The picture is very self-explanatory as to how the extension works with bolts.
I have a full size sleigh bed that I want to used a queen mattress do you have any products for this type of conversion? My bed rails are hook on and side rails are wooden.
Kendrick M on May 13, 2017
BEST ANSWER: We don't have any products that could connect to a hook on the rail. Sorry
Have a bed that's queen size wood antique fuul size headboard can it be converted?
Lisa M on Apr 25, 2017
BEST ANSWER: Have not used the plates, yet. Looks like will work...foot board maybe.
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