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Product Price Qty
Back mount, 35-40 Inch lbs., Lid Support
Back mount, 35-40 Inch lbs., Lid Support Item #26153
In stock
$7.99 Each
Back mount, 45-55 Inch lbs., Lid Support
Back mount, 45-55 Inch lbs., Lid Support Item #26161
In stock
$7.99 Each
Back mount, 95-125 Inch lbs., Lid Support
Back mount, 95-125 Inch lbs., Lid Support Item #26179
In stock
$7.99 Each

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Box Lid Supports - Back Mount

Box lid support-back mount in statuary bronze finish with three load ratings.
Item #
88% of 100

Lid supports prevent chest lids from accidentally slamming shut on fingers. They feature a solid brass slide with a statuary bronze finish. Available in left-side, right-side and center-mount configurations. Each configuration is available is three load ratings.

Calculating the Number and Rating of Lid Supports
Use the following formula to determine the optimal number and rating of lid supports:
Lid width (front to back) x lid weight in pounds / 2 = Inch-lbs. of support required.

Example: Using an 18" wide lid weighing 12 lbs: (18 x 12)/2 = 108. Therefore, either two 45-55 or one 95-125 Inch-lbs support would be an appropriate choice.

(1) Box Lid Supports - Back Mount
More Information
Weight 1.0000
Tech Spec
  • Allows lid to open to 85 degrees
  • Use on boxes with a 3/4" thick back.
  • Can be used singly, in pairs or in multiples of 3 or more
  • Durable statuary bronze finish
  • Includes 5/8" x #5 mounting screws
  • Sold individually
4.4 / 5.0
125 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Great for the $
This are very similar to what came on an ottoman, but significantly better quality. Easy to install and so far no issues after a month.
December 20, 2019
6 months ago
Woodworking Experience:
It was for a replacement on a toy box and it works fine.
October 8, 2017
over 2 years ago
just the item I needed for my son's toy box
I followed the formula for calculating the combination of lid supports I needed for my son's toy box and the lid opens and closes with ease, and my son won't get hurt in the process. Great product!
September 28, 2017
over 2 years ago
Woodworking Experience:
An exact replacement for the damaged original
August 6, 2017
over 2 years ago
Woodworking Experience:
Have made 35 toy boxes for family and friends using these supports. Have had no trouble with them, and they keep little fingers and heads from getting squashed.
March 26, 2017
over 3 years ago
Woodworking Experience:
Great on grandkids toy chest. No smashed fingers---------YET!
March 16, 2017
over 5 years ago
Woodworking Experience:
Back Mount Box Lid Supports
I used these on a large outdoor storage shed they help to open nicely. The closing is very controlled. The only thing I could suggest is to emphanise how critical the 3/4" dimensions are.
I had to get a little creative to modify my oversize lumber.
March 7, 2017
over 3 years ago
Woodworking Experience:
Great item
Easy to install, worked great.
December 5, 2016
over 3 years ago
They fit properly and hold the lid just right!! I tried another company and went back and forth for more than 6 weeks. I finally gave up, found these, and ordered them. I had them within a week and installed in a very short amount of time -- around 20 minutes. I am very happy with these hinges!!
November 29, 2016
over 3 years ago
Woodworking Experience:
Ordered the wrong product
The product is fine. I ordered the wrong product.
September 19, 2016
over 3 years ago
Woodworking Experience:
Start typing your question and we'll check if it was already asked and answered. Learn More
Browse 12 questions Browse 12 questions and 21 answers
Why did you choose this?
Rockler Store
to put on a chest to help take the top down slowly
Carolyn P on Jul 26, 2018
Best fits my build
CBL B on Jun 7, 2018
to put on a chest to help take the top down slowly
Carolyn P on Jul 26, 2018
Hold the lid up to allow kids to get in.
David C on Jun 30, 2018
Best fits my build
CBL B on Jun 7, 2018
Not Available Local
David B on May 28, 2018
left and right support needed help on my large lid
Alan O on May 18, 2018
Replace existing back mounts in cedar chest.
martin h on May 13, 2018
I have already used one of these. I need another for a different project. Couldn't be happier with the first one.
Aaron B on Apr 11, 2018
replace a broken box lid support
Robert K on Mar 24, 2018
it works
thomas w on Mar 17, 2018
I have built a tack trunk and needed the hardware to finish it out
Ashley J on Mar 13, 2018
Because it was a center and for strength
Lisa L on Mar 7, 2018
To support a lid on a toy box.
Charles B on Mar 7, 2018
only back mount I could find
Joel P on Jan 21, 2018
a custom built chest
Neil V on Jan 19, 2018
needed 95lbs of support
Maurice L on Nov 27, 2017
Have two grandsons that I built toy boxes for. On both toy boxes I used Rockler lid supports and they work great. They keep the lid from slamming shut on fingers or hands.
TERRY B on Nov 16, 2017
recommended by my brother who does woodworking and likes rockler products
David S on Sep 6, 2017
These lid supports appeared to satisfy the weight and size of my lid using three unit to support the weight
S T on Jul 3, 2017
Used these before and they work as expected.
Paul Z on Apr 25, 2017
have built 3 other tool boxes never had a smashed hand
George C on Mar 20, 2017
If you don't want the lid of an enormous Hope Chest slamming closed on fingers, these lid supports are the way-to-go.
Automated S on Mar 8, 2017
Talked to tech support. They were very helpful. Item will be used for a toy box lid.
Rodney K on Feb 16, 2017
Tried these as lid supports for a childs toybox. Worked great. Built two more toyboxs with same supports. Five years later no kids with smashed fingers.
Joseph C on Feb 14, 2017
I bought it for chest, to prevent it from slamming the top.
Camerino L on Feb 10, 2017
The previous one worked.
Dennis M on Feb 8, 2017
To hold lid on hope chest.
Alan R. F on Feb 2, 2017
Used them previously
Randall G on Jan 28, 2017
Toy box
Randall A on Jan 28, 2017
Use with toy box
Karen O on Jan 20, 2017
to support a kids toy chest that wasn't supported and falling down easily
Joshua O. B on Jan 7, 2017
Making a toy box for a Christmas gift, I was worried about the granddaughters safety with the toy box lid
Harry Z on Dec 18, 2016
pallet wood toy box lip support
Shawn L on Dec 17, 2016
I have used these supports for the last 8 years and have had no mashed fingers.
Ron A on Dec 13, 2016
Need a replacement support, hope this one will work.
Harvey R on Nov 16, 2016
wanted to try it
James E on Nov 6, 2016
reputation top quality
larry b on Nov 3, 2016
I used these box lid supports for a maple toy box for my first grandchild and when the second grandchild came along I made her an oak toy box and used these supports again.
Stephen T on Oct 13, 2016
I hope these stronger ones work for my cedar chest
Anton j p on Oct 4, 2016
for a toy box project
William P on Sep 26, 2016
I am building a Treasure chest for my future great granddaughter, and this is to prevent the lid from falling on her head. i always use the toy box lid support on all construction for all children
Clyde L on Sep 21, 2016
I have used these on toy boxes before and believe they are a good safety factor
Ronald R on Sep 6, 2016
they work, building 6th toy box for a grandchild turning one year old and have had no crushed fingers. used these for 5 previous toy boxes,.
Rickey R on Aug 6, 2016
I have used them before and they work great
Leon d on Jul 27, 2016
I have an old toy box from This End Up that has a broken support. This one appears to be the same support, so it keeps it authentic
Eric B on Jul 19, 2016
First time building a toy chest.., lid is heavy, 17 lbs.., need something to keep t form slamming on kids fingers, reviews and descriptions described this as the best option.
Paul C on Jul 16, 2016
I needed lid supports for 3/4" plywood lid supports.
Gary C on Jun 5, 2016
I used this lid support for my son's toy chest. It works great to protect tiny fingers from getting smashed.
Phillip S on Apr 23, 2016
Built a large chest and need to hold lid up
J Dean F on Apr 20, 2016
I have used these lid supports before and they worked great. No more slamming lid or pinched fingers.
Rick G on Apr 8, 2016
Recommended in plan. Used before. works great.
Rick W on Mar 27, 2016
Hold the lid up to allow kids to get in.
David C on Jun 30, 2018
Not Available Local
David B on May 28, 2018
Can you use two weight ratings to get the correct weight rated supports if using a left and right at 40- 50 lbs and a center back at the lighter weight? My lid comes in at 123 " lbs.
Charles B on Dec 21, 2017
How do you install the support ?
A shopper on Apr 19, 2015
BEST ANSWER: See for info on installing.
i installed according to instructions and chest does not close all the way. is it becauce the back I mounted on is more like 2" thick?
bob g on Dec 7, 2018
I am reading that this hinge can open to 85 degrees. Does it stay open on its own, or does it start to slowly close after it has been opened?
Sarah C on Feb 22, 2020
BEST ANSWER: It stays open. I used these for my granddaughter’s toy chest. Lids are quite heavy but they do the job. 2 years diwn the track and they still work fine.
I have a lid that is 14" wide and weighs 3 lbs. By my calculation, that is 21 torque lbs. will this hing e work with such a light lid?
John D on Feb 1, 2017
BEST ANSWER: In my experience, the key to these lid supports seems to be the design of the box. I have installed this same support on two different boxes. The first box had a heavy lid that I was worried about but the box was designed very similar to how the instructions show, so once it was installed it works great. The second box had a lighter lid than the first but the box was a different construction type than the instructions show and therefore was difficult to get installed the way they recommended. As a result, the lid does not shut properly when it is closed. It still supports itself when open but it gets pinched at the point of closing and has a small gap where it doesn't close completely. I can tell that it doesn't have anything to do with the weight but everything to do with the box and the hinge point. If your box looks similar to the installation instructions than you should be fine. Otherwise, you may have difficulty making it close correctly. Hope that helps.
What would I use on a lid that is 146 in/lb based on the given calculation? Would the 95-125 be too much?
Garrett B on May 26, 2019
BEST ANSWER: That should be fine. I’ve made several toyboxes and always use the formula provided. Better to have a stronger rated support than a weaker support . The closer will just be a softer closing when using the higher rated closer.
Will these fit inside a 4 inch deep box?
Andrea H on Feb 23, 2018
BEST ANSWER: Yes. The bottom edge of mine are a little over 2" down inside the box.
the hinges I purchased are stiff and do not swivel to compress the spring. Is how how they are designed?
Kingfish on Jan 7, 2019
BEST ANSWER: You may not have enough weight on the lid to fully compress the hinge. There's a formula for figuring the square inch/ lb for your lid material. If it's not heavy enough, won't work. Also, you may want to check you have the correct placement of hinge.
My weight comes out to 110 lbs/in. If I double up with 2 of the largest hinges, will I have a problem? Basically will two provide engineering margin or will it be so much that the lid doesn't close?
William H on Mar 27, 2017
BEST ANSWER: If you lid is 110 inch/lbs. you'll want to use 2 of the 45-55 inch/lb. rated support. If you used 2 of the 95-125 inch/lb rated support it would be way too stiff.
Building a toy chest. I don't want to use a piano hinge. I would like to use one hinge behind each of these supports. What rockler hinge did you all use with yours?
William H on Mar 22, 2017
BEST ANSWER: I did not use a Rockler hinge. I used some hinges I had on hand. Any hinge that will handle the weight of your lid will work. I have a 40 pound arched lid and two of these supports easily hold it in the vertical position. The lid must be pulled down into the closed position.
Does this work with European hinges? Thanks!!
Beekay on Apr 27, 2016
BEST ANSWER: It will work with any hinge as its mounted by itself.
Will this support a lid open at 45 degrees?
Chris D on Feb 16, 2016
BEST ANSWER: Yes it will. I would also say it depends on the weight and dimension of the lid. I am very pleased with these.
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