Bunkie Board King Size 76"x80" for Under Mattress Bed Support, Heavy Duty Reinforced Wood with Anti-Sag, Light Thin/Breathable, Noise Minimizing, Fits Metal Frames/Platform Beds/Sleeper Sofa
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FREE 30-day refund/replacement
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
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Availability:
Only 10 left in stock, order soon!
Arrives
Sunday, Jul 12
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Size: 76*80inch
Features
- High-Strength Corrugated StructureThis bunkie board king features a unique dense corrugated design that supports up to 600 lbs (270 kg) easilyno sagging, even for heavy mattresses. Eliminates squeaks common with wooden support boards, so you sleep undisturbed all night
- Prevents Sagging for MattressPlaced between mattress and frame, this king bunkie board distributes weight evenly to stop mattresses from sinking into frame gaps. Works for memory foam, hybrid, and spring mattresseskeeping your mattress in shape longer and saving you replacement costs
- Tool-Free Foldable DesignNo tools needed! Just unfold this king size bunkie board and secure with the built-in Velcroready to use in seconds. Lightweight yet sturdy, it folds flat for easy storage: perfect for seasonal use, small apartments, or quick room rearrangements
- Breathable Polyester FabricSurface polyester resists stains for easy cleaning; non-woven lining boosts air circulation to keep your mattress dry. Fits seamlessly to your mattresss contours and dries fastideal for humid areas
- Suitable for Various Bed FramesWe made this bunkie board slightly smaller than standard mattress sizes to fit frames with raised edges.No impact on useplus, its more durable and stable than old-fashioned slats. A must-have for anyone wanting long-lasting support without sacrificing comfort
Item Weight: 22 pounds
Product Dimensions: 78 x 72 x 0.4 inches
Item model number: BB-KING
Weight: 21.6 Pounds
Date First Available: September 19, 2025
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Sunday, Jul 12
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.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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- Affirm Pay in 4
- Affirm Financing
- Afterpay Financing
- PayTomorrow Financing
- Financing through Apple Pay
Learn more about financing & leasing here.
Similar Products
Top Amazon Reviews
Size: 76*80inch
I’m so glad I got this. I have one of those metal bed frames where the slats are a bit too far apart, and I was worried about my mattress sagging. This bunkie board fixed it instantly. It was super easy to just unfold and put on the frame, and it makes the whole bed feel way more solid and supportive. It’s also surprisingly quiet and no squeaking at all!
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Reviewed in the United States on April 20, 2026 Reviewed in the United States on April 20, 2026 by SuperYY
Size: 60*80inch
Bought this to fix the sagging in my bed frame and it works great. Very easy to set up and surprisingly sturdy. My mattress feels much more supported now. Good value for the price.
Reviewed in the United States on March 13, 2026 by Angelos
Size: 60*80inch
Great quality for the price! It fits my queen bed perfectly and feels very sturdy. After adding this bunkie board, my mattress feels much more supportive and no more sagging in the middle. It’s thin, breathable, and doesn’t make any noise. Easy setup too. Definitely recommend!
Reviewed in the United States on February 25, 2026 by wendy
Size: 60*80inch
Wish it stronger by the corner
Reviewed in the United States on December 3, 2025 by Wendy P.
Size: 60*80inch
I’m really happy with this bunkie board It is lightweight and easy to set up, but still feels very sturdy. The anti-slip surface works perfectly—my mattress stays exactly where it should. Highly recommended!
Reviewed in the United States on March 7, 2026 by Yueyun Sun
Size: 60*80inch
Helps with keeping the mattress firm. Otherwise, doesn’t dampen noise at all.
Reviewed in the United States on May 14, 2026 by Liz Brito
Size: 60*80inch
Our bed frame is an inexpensive metal frame with almost no support for the mattress. I knew what I wanted but I didn’t know what it was called! Then I found this Bunkie Board! It solved the problem! It is a little pricey though.
Reviewed in the United States on May 5, 2026 by Deborah V. Olsen
Size: 76*80inch
It works well and easy to put on the frame of the bed.
Reviewed in the United States on March 8, 2026 by C. Poloche