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Glideaway X-Support Bed Frame Support System, GS-3 XS Model - 3 Cross Rails and 3 Legs - Strong Center Support Base for Full, Queen and King Mattress, Box Springs, and Bed Foundations

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Availability: In Stock.
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Arrives Saturday, Sep 5
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Features

  • Non
  • Made in USA and Imported
  • UNIVERSAL FIT: Suitable for Full / Double, Queen, King / Eastern King, and California King size Beds; Works with Mattresses, Box Springs, and Foundations; Compatible with steel, iron, metal, and wood bed frames (bed frame not included)
  • STRONG SUPPORT FOR BEDS: Patented X-System keeps bed frame legs vertical and in place, preventing them from sliding out of position; All-steel cross rails combined with heavy-duty super clamp and X Support provide the ultimate in support for your bed, foundation, and bedding; Stronger alternative to bed slats; No more sagging mattress!
  • EASY TO USE: Clear, uncomplicated instructions are included; Pre-drilled holes allow you to easily secure the cross slats to your bed using the included screws
  • EASY TO USE: Clear, uncomplicated instructions are included; Pre-drilled holes allow you to easily secure the cross slats to your bed using the included screws

Description

The revolutionary X-Brace system center support system is designed to be easily installed and help support your Full, Queen, King, or California King sized bed. Using the included legs, you can assemble this support system to adjust from heights as low as 6 inches, all the way up to 15-1/2 inches in height (measured from the floor to where the bottom of the box spring rests.) This unique center support system provides superior coverage under your bed to evenly support the box spring and mattress. The revolutionary X-System design creates a special synergy which adds an extra dimension of support to protect your bed and bedding, so you can protect your bedding investment and ensure a great night sleep. The legs of this support are easily adjustable to allow a wide range of height, accommodating almost any bed configuration. The support system also adjusts in width to fit Full, Queen, King, and California King sized beds. Designed for strong support of your bed. 3 sturdy metal rails and 3 feet hold your mattress in place. Replaces wooden bed slats. No more sagging mattress! The Positive-Locking leg design actually gets stronger when you apply the weight of the bed, with super strength to give you peace of mind. Since the three cross rails are all connected, this support stays in place over time. There are no complicated instructions to follow when installing this center support (although there are instructions in the box, just in case.) Using the unique "Gripper" Super Clamp, which comes preassembled, you can easily adjust the center support to the size of your bed and attach the pieces together to create a heavy-duty support system. The cross slats of this system have pre-drilled holes in the ends where they overlap your side rails, and are easily secured to the bed using the included screws. This ensures your center support system will not move around, and also protects your side rails from bowing or bending.

Item Weight: 25.8 pounds


Manufacturer: Glideaway


Item model number: FBA_GS-3 XS


Fabric Type: Non


Maximum recommended load: 200 pounds


Import: Made in USA and Imported


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Sep 5

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Top Amazon Reviews


  • Perfect solution
This was exactly what I needed after the existing metal slats/support legs on my bed got warped and twisted after years of use on hardwood floors. (And enthusiastic adult activities...) The package came quickly, the package included everything I needed and then some. The install for me was very simple and straightforward. I did not end up needing a drill, and I was able to adjust it perfectly to fit across and height wise (the legs have extenders if you have a taller bed but I didnt need them). I was able to put this together by myself and I'm not the strongest or handiest person around. I'd recommend this product if you love your current bed frame and don't want to replace the whole thing. Which is exactly what I needed because its part of a furniture set that I was given by my grandparents :) ... show more
Reviewed in the United States on May 14, 2026 by KT

  • Good sleep
Great supports. Went together pretty quick. Had no issues with it. Bed use to sag a lot in the middle and with this its like a brand new bed. Best night of sleep ive had in months. I would recommend this if you are in need of some extra support or new supports under your box spring
Reviewed in the United States on May 5, 2026 by Robert

  • Solid design, easy to assemble.
This product is well made and very sturdy. Assembly was very simple.
Reviewed in the United States on August 24, 2026 by Hey Joe

  • Good product, good price, terrible assembly instructions
I'd give this a 5 if it only had decent assembly instructions. The ones that are included are totally useless, save for the parts list. Watching Youtube videos helps somewhat. Here's a brief set of instructions: 1. Determine if you need the extension plate for each center clamp (depending on the height of the rails on your bed frame). If you do, attach them. 2. Screw in the feet into the center clamps. 3. Take 2 cross supports, and slide them through a center clamp. Extend the supports until they reach over the rails of the frame (they should lay flat on the rails). Tighten the L-bolt so that the assembly is secure. Do this for the other 2 sets of supports and center clamps. Make sure all the clamps face the same direction. For these instructions make sure that the L-bolts face the foot of the bed. 4. Take the 3 assemblies and lay them on the bed frame rails approximately where you think they should go. DON'T screw them into the frame yet. Adjust the feet so that they will allow the assembly ends to make contact with the bed frame rails. (For this next part, the 2 x-frames will connect the 3 cross supports. The end of each x-frame with the notch will always be towards the foot of the bed, and attach on the top hole.) 5. Starting at the head of the bed, take an x-frame and bolt the ends WITHOUT THE NOTCH to the top and bottom holes on the center clamp. Make sure you orient things so the notch at the other end (i.e. connecting to the center span assembly) is on top and facing up. I recommend having the long end of the bolts not stick out. 6. Bolt the ends of that x-frame, and the end of the other x-frame (without the notch), to the center clamp of the middle assembly. 7. Bolt the final x-frame end into the last assembly, near the foot of the bed. If the notch isn't facing up then you attached that x-frame upside down to the center clamp. 8. Check that you bolted the x-frames to the top and bottom holes on each center clamp. 9. Center the entire assembly from the head to the foot of the bed so that you have good support between where your hips and shoulders will be. Starting with the cross support at the head of the bed, drill a small guide hole through the holes at each end of the cross support, and screw in the screws into the frame rails. Now that the whole assembly is anchored, you can go ahead and put in the other 4 screws. 10. Check the height of the feet. They should put just a tiny bit of upward pressure, no more. And you're done. ... show more
Reviewed in the United States on August 6, 2024 by Lee Herman

  • Exactly what I needed
All needed hardware (9 nuts and bolts for the support assembly, and 6 screws for securing the supports to a wooden bed frame) are included - you will need a Phillips head screwdriver and a mallet or hammer. Setup was mechanically easy, though time consuming and a little confusing at times. The instructions are a bit light on exactly how the cross supports attach. One side of each cross support has a notch cut out of it - this notch fits around the horizontal angle bar and you attach to the top most bolt hole. It took a little bit to work out exactly which set of holes to use. I also opted to fully unscrew the feet from their plastic receivers and then hammer the receiver into the metal leg piece before screwing the foot back into the receiver. Though the plastic seems to be rugged, I doubt smacking the foot with a hammer and putting that stress on the threads is a great idea and others commented about trouble with the plastic threads failing and I imagine these two things could be related. I've seen others that added a nut to the foot to provide extra support and take some of the stress off the plastic threads, so I'll keep that in mind if I run into any issues though they seem plenty strong for the moment. You'll want to adjust the 3 cross bars to the correct length and lock them in place, attach the optional height extension brackets (leave the bolts finger tight only because you will need to remove one of them), and attach the feet, and then position the three supports paying attention to the orientation of the brackets so that all three are oriented in the same direction. Then attach the center support to the bed using the included screws, and then using the center bar as your reference point attach the cross supports and secure the bars to the bed. Lastly, adjust the feet down to the floor and give it a little test push to ensure there's no wiggle with weight applied. The supports are heavy angle bracket, so there's not much give to them - be sure those feet are all the way down or else you'll be putting all of the weight on the wood bed frame pieces and not realized it until you're on the floor. I was replacing a set of 3 cross supports with feet under a king sized bed. Those legs became damaged when the bed was moved, causing the legs to be pulled forward and twisting. Unfortunately, their design meant that there was no way to safely move the bed without fully disassembling it, which I learned the hard way. The new legs have a few advantages. For one, there is the crossing supports between each leg that prevents any front to back twisting which could otherwise cause the supports to turn and snap the screws securing them to the bed frame as happened with my old supports. The adjusting feet also mean that you can adjust the feet up to move the bed and then adjust them back down once it is in place again. Finally, these legs are quite rugged and would take some very serious conditions for them to bend or break. I'd expect the wood frame to break before these cross supports ever gave out. Once fully assembled and secured, this provided a rock solid platform for my mattress. Though this was a replacement after the previous legs failed and just about anything would have been an improvement, these supports are significantly more stable than the old original legs that came with the bed frame were when new. A nice upgrade overall and I'm very happy with my purchase. ... show more
Reviewed in the United States on November 22, 2018 by Vince P.

  • GREAT Mattress support
Re Glideaway X-Support Bed Frame Support System, GS-3 XS Model Got this for my queen bed and it much improved my bed. Get rid of old fashioned bed slats and get this! The support comes in a compact, fairly heavy package. It is made of sturdy steel angle irons and steel strips, took about fifteen minutes to assemble - easy assembly, you need only a #2 Philips screw driver and maybe a wrench or pliers. Most of the assembly time was fiddling around with the fit and placement. Once adjusted you tighten all fasteners and it is STURDY. It was a real pleasure in this throw away world to get a product that is very sturdy and well made. The fit is PERFECT. The frame can adjust to just what you need in both height and width. Accommodates metal or wood bed frames. If I could deduct 1/2 star for Ease Of Assembly I would only for this small reason: The instructions are a bit wonky, it was a little puzzling to fit the cross pieces (the notches go UP) and the height brackets (you may not need them at all - they extend the height for very tall beds). Also I suggest: after a week check the height adjustment on the three legs. They may "settle in" a bit, especially if you have carpets. A very good bed support frame. ... show more
Reviewed in the United States on February 15, 2022 by FbDavid Mason

  • Interrupted sleep GONE!
The king bed we have would creak and groan each time either my wife or I would get into or out of bed. It was so annoying and interrupted sleep when one had to get up in the middle of the night. My initial attack to fix the problem: I removed the mattress and box springs, placed felt backing between each of the four slats and where the slats contacted the bed rails, then tightened all the screws holding both the slats and rails in place. I even added screws to the rails in case that was the problem. No luck. Same groan and creaking noise, and it wasn't my back... Decided to replace the wood slats with metal slats and combed the internet. The X-support slats were my choice solely because of the bracing for the unit. The fact that there were only 3 slats worried me a little. The unit arrived in a smaller box than I anticipated, but it was all there. A bit of preplanning and loose assembly before getting to the actual installation helps. The legs are fully adjustable for the bed height. The cross bracing (X-Support, I guess) is superb at stabilizing the entire unit in place. The legs stay perfectly vertical. The whole unit installed in about 25 minutes. I shouldn't have worried about 3 slats in place of the 4 wooden ones. The steel is quite strong and stable. SO...with everything in place and tightened down, the box springs and heavy mattress went back in place. The result: absolute quiet. Not a sound when getting in our out of bed. Nothing! I examined the old slats, they were only 12 years old and were about 4 inch wide by 3/4 inch thick and made of a birch veneered plywood. The glue in the layers of plywood had dried out and failed over the years, the noise was literally wood layers scraping each time the weight on the bed shifted. Can't say enough about the X-Support GS-3XS Steel Support System. Well designed, properly engineered. A very good product! ... show more
Reviewed in the United States on August 15, 2015 by BusBob

  • Great mattress support, directions awful
Does exactly what it's supposed to. The directions stink! They are awful. Once you understand how it goes together it's pretty simple. Problem is getting there. took a 20-minute job into two and a half hours.
Reviewed in the United States on January 2, 2026 by Bodocki

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