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58in x 58in Bed Boards for Frame Under Mattress Support, Half Queen Size Bunkie Board to Stop Sagging Mattress

  • Based on 192 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon

Arrives Wednesday, Aug 6
Order within 6 hours and 55 minutes
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Size: Queen-Size (58X58in)


Features

  • Half Queen-Size Coverage: This 58 x 58 bed support board provides 75% coverage for your queen-size bed. Perfect for slatted or platform beds, it prevents sagging and adds long-term comfort and stability. For best results, pair with a mattress and topper for ultimate support.
  • Heavy-Duty, Reinforced Design Made to last, this bunkie board queen supports up to 300 lbs with a solid interior and rugged 600D Oxford cover. It stays firmly in place, resists bending or shifting, and delivers reliable support every night.
  • Extensive Surface Coverage With a 58" x 58" size, this bed board fits your current queen mattress, eliminating dips and gaps between slats. It lays flat for total surface support and helps maintain your mattresss shape, feel, and structure.
  • Helps Mattresses Last Longer This half-queen bunkie board creates a firm, even foundation that reduces pressure points and wear. Ideal for memory foam, hybrid, or spring mattresses needing added under-mattress support to stay comfortable and durable.
  • Quick Setup, Seamless Fit No tools or assembly required. This bunky board installs effortlessly and lies flush beneath your mattress without raising the bed height. A clean, low-profile solution for instantly upgrading your beds support system.

Brand: Golden Home Essentials


Assembly Required: No


Seat Depth: 58 inches


Seat Height: 0.5 Inches


Weight Limit: 300 Pounds


Product Dimensions: 58"D x 58"W x 0.5"H


Item Weight: 14.08 Kilograms


Type: Sleeper


Color: Black


Upholstery Fabric Type: Cotton


Brand Name: Golden Home Essentials


Sofa Type: Sleeper


Number of Pieces: 1


Seat Cushion Quantity: 1


Indoor Outdoor Usage: Indoor


Included Components: Mattress


UPC: 023632466891


Item Type Name: Sofas


Item Height: 0.5 inches


Manufacturer: Golden Home Essentials


Color: Black


Shape: Square


Arm Style: Armless


Back Style: Foldable


Frame Color: Black


Required Assembly: No


Warranty Type: Limited


Component Connector Assembly: Not Required


Seat Depth: 58 inches


Seat Height: 0.5 Inches


Item Dimensions D x W x H: 58"D x 58"W x 0.5"H


Item Weight: 14.08 Kilograms


Size: Queen-Size (58X58in)


Included Mattress Size: Queen


Weight Capacity Maximum: 300 Pounds


Seating Capacity: 1


Item Firmness Description: firm


Seat Cushion Configuration: Single Cushion Seat


Is Customizable?: No


Upholstery Fabric Type: Cotton


Frame Material Type: Metal


Material Type: High-Quality Reinforced Boards


Has Removable Seat Cushion Cover: false


Product Care Instructions: Wipe with Damp Cloth


Seat Fill Material: Foam


Furniture Leg Material: Metal


Fill Material: Foam


Material Features: Waterproof


Cushion Construction: Oxford 600D waterproof fabric (outer covering)


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Aug 6

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Seems Like It Will Work Well
Size: Queen-Size (58X58in)
Bought this to provide extra support for my sleeper sofa mattress and cover the bars in the frame under the mattress. It fits my queen size sleeper sofa frame perfectly. It feels sturdy but I'll have to see how my guest likes it when they arrive tomorrow. Hopefully it provides extra comfort so they can sleep well. It is pretty heavy and I had to have my husband help me maneuver it onto the frame. I then tried laying on the mattress and it seemed okay but actually sleeping on it will be a better test. I'll update after our guest leaves if we get any other feedback. ... show more
Reviewed in the United States on June 8, 2025 by Linda A.

  • Makes for a better nights sleep
Size: Queen-Size (58X58in)
I needed to make my sofa sleeper more comfortable for visitors. Adding this under the mattress was the answer. Folds up for storage
Reviewed in the United States on June 18, 2025 by W Tackett

  • Heavy
Size: Full-Size (48x58in)
Only negative is this is HEAVY. Otherwise it's great for support.
Reviewed in the United States on May 1, 2025 by MCooleyII

  • Works!
My husband and I bought a purple mattress but didn’t want to buy a whole new bed frame. This has been perfect for the stability needed to not allow the mattress to fall through the frame slats. The fit was perfect for its size and didn’t weigh much to move around.
Reviewed in the United States on May 20, 2025 by Jordyn

  • It’s a good product
This is perfect for Amazon foldable metal frame seen reviews claiming the queen size isn’t true to size of the frame but that isn’t my experience it’s a little heavy but very well made no need to worry about this one falling apart
Reviewed in the United States on May 10, 2025 by Wesley

  • It creates great support! 100% recommended.
Size: Full-Size (48x58in)
We love this Under Mattress Support Board. Is very convenient, because it really provides extra support. You don’t feel the metals tubes anymore. You can really rest and sleep. We decided to use the boards vertically, because of the design of our sofa bed. Very resistant and well made.
Reviewed in the United States on May 7, 2025 by T T

  • Might work for others, but not for me.
My sleeper sofa is far from new and rarely used. A few months ago, my son-in-law complained about one of the bed's crossbars hurting his back. At the time, I considered it as "the princess and pea" incident. When I found this support board existed, I ordered it. This past weekend, my son-in-law had the privilege of testing. During the night, he moved the mattress to the floor. The next morning, he demonstrated how the horizontal slats of the board moved, becoming wavy and very uncomfortable. We agreed that if the board sat on top of or properly within the bed frame, or were laid vertically instead horizontally, it might work. We also agreed that the weight and age of the sleeper might make a difference. Children or younger people might not have a comfort problem. They might not even need the board. The board is heavy. It was too heavy for me (I'm in my eighties) to carry up from the basement to the loft of my log cabin. A visiting workman carried it up, but I noticed even he was beginning to feel the weight partway on the second flight of stairs. The board now lies behind the sofa-bed, perhaps forever. ... show more
Reviewed in the United States on February 25, 2025 by Mountainbloke

  • Works better with a regular mattress
This bunkie board is well made and doesn’t have a strong smell like others. It’s very heavy about 35 lbs. The only thing is that I used it with a futon mattress (4 inches) and it was too hard for my aching joints. It will work better with a thicker mattress for a cushier feel.
Reviewed in the United States on March 2, 2025 by R.K

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