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
Condition: New
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Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Apple Pay, and PayTomorrow. No-credit-needed leasing options through Acima may also be available at checkout.
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Returnable until Jan 31, 2026
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.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
Availability:
Only 5 left in stock, order soon!
Arrives
Saturday, Mar 21
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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: 23.5 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:
Saturday, Mar 21
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.
- Klarna Financing
- Affirm Pay in 4
- Affirm Financing
- Afterpay Financing
- PayTomorrow Financing
- Financing through Apple Pay
Learn more about financing & leasing here.
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Top Amazon Reviews
Size: 76*80inch
It distributes weight evenly, so my spring mattress doesn’t sink anymore. Thin enough to fit under my mattress without raising it too much. Love it!
Reviewed in the United States on October 27, 2025 by Lauren
Size: 76*80inch
Lightweight but tough! I live in a tiny apartment, and this folds flat to store in my closet. It keeps my hybrid mattress from sagging, and the breathable fabric stops moisture buildup. Fits my metal frame perfectly. So Easy to Use
Reviewed in the United States on October 27, 2025 by Pascal Drapeau
Size: 76*80inch
My spring mattress was 3 years old and starting to sag, but I didn’t want to replace it yet. This bunkie board gave it new life! It distributes weight so evenly that the mattress feels firm again, and there’s zero squeaking (unlike my old wooden slats)
Reviewed in the United States on October 27, 2025 by Leah Gray
Size: 76*80inch
This bunkie board is a lifesaver. My memory foam mattress was sinking into the frame gaps—now it’s firm and supportive. No squeaks at all, and setup took 2 seconds (just unfold and Velcro). Holds my partner and me (over 400 lbs) easily. Totally worth it!
Reviewed in the United States on October 27, 2025 by Ajesh Plavara