Heavy Duty Center Support Bars Queen/King (Best)


Rated 5.00 out of 5 based on 4 customer ratings
(4 customer reviews)

fs_prod1 (1)Glideaway’s BB 8-18K and the BB 8-18Q are universal center support bars. Originally built as Waterbed Center Support Bars they work for many different kinds of mattress sets and are the very best of the best when it comes to queen and king size middle bracing supports. STL Beds has been using these middle braces for the heaviest applications possible including larger heavy couples, queen and king softside waterbeds weighing up to 1100 pounds without anyone in the bed. Most people that buy this support system simply want the strongest middle supports available. Works best with beds that are of 8″ – 18″ tall measuring from the floor to the bottom of the boxspring. More details below.

Photo showing King Size from our showroom floor.
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BB 8-18Q and BB 8-18K Waterbed Center Support Bars by Glideaway

How well will this support my bed?

Our queen size includes 4 center support bars working in combination with 8 steel legs and 8 adjustable feet for maximum weight distribution.

The King size also uses 4 center support bars in conjunction with 12 steel legs and 12 adjustable feet for maximum weight distribution.

This frame is better than nearly any other frame on the market.

What is the typical weight being used on these systems?

While our supports can be used for any type of mattress a king size softside waterbed one of the heaviest uses for our middle bars can easily contain 1100 pounds of water, a 200 pound bed, plus couples having a combined weight of 330 pounds. This is not the maximum this frame can hold but just a sample of what our support bars are holding in the typical application. These are the strongest supports available.

Will this fit my bed?

You must have a wood headboard and footboard that includes wooden side rails. The insides of those rails include a wooden lip. Measure the distance from the top of the wooden lip to the floor. If it measures from 8″ – 18″ these are the proper steel slats for your bed.


  • Proudly Manufactured in St. Louis MO
  • Assembly Required
  • Adjustable height ranges from 8″ – 18″
  • Designed to replace wooden or cheap steel slats and take the pressure off wood side rails by screwing into the lip
  • Center supports are designed with heavy duty steel adjustable legs that are bolted together and add super strength to cross support
  • Four steel cross support bars
  • Queen includes 8 legs & 8 adjustable feet
  • King includes 12 legs & 12 adjustable feet
  • Includes 8 wood screws to fasten heavy duty bars to the wooden lip of the side rails
  • Will support a softside waterbed, boxspring and mattress, memory foam mattress etc.


Important NOTE:

To move this bed do not slide. This can damage legs and knock them out of position.

Slick floors such like hardwood, tile, and laminates may allow feet to kick out and slide out of position. It is recommended to use non slip material under each foot.

Download the installation instructions

Additional information

Weight 49 lbs
Dimensions 62 x 9 x 4 in


Frame Height


4 reviews for Heavy Duty Center Support Bars Queen/King (Best)

  1. Rated 5 out of 5

    Michael Murphy

    We bought the Queen size Heavy Duty Center Support Bars (Best) center support bars for an Eastlake-style antique bed with Saatva luxury firm mattress. It is probably overkill for our application as we are not especially heavy people, but the mattress and box spring are made in America and are very substantial, so we didn’t want to take any chances with wooden slats. The center bar supports were easy to install and provide exactly the type of superior support we were seeking. We put rubber cups with felt bottoms under the legs to protect our wood floors. Very happy with this purchase and vendor. Very prompt delivery and good service.

  2. Douglas Belleville (verified owner)

    Michael, An ounce of prevention with worth a pound of cure. Not having proper support in many cases does as much damage to the bed as it can do to the mattress set. Happy to hear all went well. Thank you for your comment and purchase. Doug

  3. Rated 5 out of 5

    Susan Smith (verified owner)

    We bought the queen super duty frame. We ordered it on a Monday night and received it on Thursday. The assembly was easy and did not take long at all. What was absolutely amazing was the customer service. I received a phone call on Tuesday morning before the order was shipped to ensure that we had ordered the correct frame to meet our needs. This company exceeds all expectations and is proactive in keeping the customer satisfied. I don’t think you can go wrong ordering from a company like this that puts the customer first.

  4. Rated 5 out of 5

    Elaine M Hutsell (verified owner)

    We live in Florida and ordered on-line. They were VERY helpful. I placed my order and they followed-up with a phone call to verification specifications to make sure I got the right bed frame. Very fast shipping. My husband had a question when he was assembling the frame and they answered the question and everything went well. We definitely recommend STLBeds.

  5. Douglas Belleville (verified owner)

    Elaine, We are so happy that we could help. We follow up on the more complicated and trickier frames to assure you get the correct frame. Happy to know it worked well. We appreciate your kind words and your recommendation. Doug Belleville STL Beds Owner

  6. Rated 5 out of 5

    Yvonne Fee (verified owner)

    This is great! Our king size bed was installed over 15 years ago with inadequate supports and as a result, they broke. I was not even sure what I was looking for but finally found STL Bed company and their helpful videos on these supports. I knew instantly this was what I needed and ordered. Customer service called the next day just to ask a few questions about our bed to be sure we were getting the product we needed. Supports arrived quickly and installation was not too bad for a beginner like me. Best nights sleep ever with the proper support. Overall, a great experience with superior customer service. I feel comfortable calling these guys if we ever have a need again and would highly recommend.

  7. Douglas Belleville (verified owner)

    Yvonne, Glad your getting some sleep and support. Thank you for taking the time to share your STL Beds experience and we appreciate your recommendation. Thank you Doug Belleville Owner

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