Bunkie Board King Size Bed Boards for Under Mattress 76"x80" - Heavy Duty Reinforced Wood Support Board with Anti-Sag Design, Fits Metal Frames/Platform Beds/Sleeper Sofas - Grey
Condition: New
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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 2 left in stock, order soon!
Arrives
Saturday, Jun 13
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Size: King-Size (76X80")
Features
- Military-Grade KING Bunkie BoardEngineered for 76"x80" KING beds, this Bunkie Board KING delivers full-edge reinforcement and 500lbs capacity. Its heavy-duty cross-braced frame prevents sagging on sofa beds, trundles, and metal frames
- Waterproof Protection for Sleeper Sofas & RVsEncased in military-grade 1680D Oxford fabric, our Bunkie Board KING blocks moisture, spills, and condensation. The triple-layered wood core resists warping while promoting airflow ideal for kids' rooms and RV mattresses.
- 7-Point Anti-Sag Tech for Mattress +-LongevityAdvanced support grids combat sinking in memory foam/hybrid mattresses. This Bunkie Board KING transforms sofa beds into stable, hotel-quality surfaces by contouring to your mattress base.
- Universal Fit for All KING Sleep SystemsCompatible with 8"-14" mattresses (memory foam, hybrid, or spring), this Bunkie Board KING fits Murphy beds, daybeds, and trundles. Tool-free setup in 30 seconds no assembly needed.
- Ultra-Portable & Non-Slip Designthe foldable Bunkie Board KING travels effortlessly for camping/RV trips. Non-slip corner pads secure any bed frame during moves, preserving mattress integrity in vacation homes.
Size: King-Size (76X80")
Color: Grey
Material: High-Quality Reinforced Boards
Style: Modern
Brand: JASMINELOVER
Size: King-Size (76X80")
Item Weight: 18.1 Kilograms
Number of Pieces: 1
Item Depth: 12 inches
Color: Grey
Style Name: Modern
Material Type: High-Quality Reinforced Boards
Brand Name: JASMINELOVER
Manufacturer: JASMINELOVER
UPC: 614141485574
Maximum Weight Recommendation: 500 Pounds
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Saturday, Jun 13
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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Similar Products
Top Amazon Reviews
Size: Queen-Size (59X80")
Excellent product – bought this to accompany a separate mattress topper to firm up a boxspring mattress and then create cushioning by putting the topper on top of the mattress. Very easy to put under the mattress and very strong and stable. Exactly what I was looking for and very good quality. This plus a topper was much cheaper to improve a mattress that was too firm vs buying a high priced new mattress. A mattress company call center gave me the idea : never heard of a bunkie board before ! So now I - you - know !
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Reviewed in the United States on February 20, 2026 by LDE
Size: Queen-Size (59X80")
I'm so glad that I found this product. Unlike most other bunkie boards out there, this product has wood boards that are solid and wide, rather than skinny slats. It feels durable and high quality. The outer gray material also feels very durable. Please be aware that it is short about 2 inches from the standard frame size. For example my Queen bed frame is 60" x 80" but the bunkie board is 58" x 78" - Not a problem, I think this is normal for most bunkie boards. You should get this, you will not regret it!
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Reviewed in the United States on May 1, 2026 by Amazon Customer
Size: Queen-Size (59X80")
Very sturdy, great support for our new purple mattress and much easier solution than dealing with a new foundation (have an old bedroom set). Grateful for a good solution.
Reviewed in the United States on January 7, 2026 by Sharon S.
Size: Queen-Size (59X80")
I replaced my blown out box spring with a steel frame foundation with these bunkie boards on top and it made a world of difference. If your mattress feels like it's caving in the middle, pull back some fabric on the bottom side of your box spring and insoect the internals and you might find your springs are just collapsed and the mattress is still good. These are great quality, from the rigidity of the boards themselves to the vinyl covering. They have my vote!
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Reviewed in the United States on March 31, 2026 by Fast Eddie
Size: Queen-Size (59X80")
This is fantastic. It's heavy, durable, and provides a nice flat surface on top of my metal bed frame. The only thing I think would improve the design is if the breaks/folds were vertical instead of horizontal. It's not an issue once you get the mattress on the bed, but depending on where your slats fall, if the breaks hit between the slats then it wants to fall into the slats.
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Reviewed in the United States on May 5, 2026 by A.D.
Size: Queen-Size (59X80")
I have a wooden slat bedframe, which felt that it was giving in a little. So I ordered this and now my bed is perfect with the firmness and support I need.
Reviewed in the United States on February 18, 2026 by Amazon Customer
Size: King-Size (76X80")
This king bunkie board is in two pieces for easier packaging and handling once opened. Each piece is quite heavy so you can tell there's some quality material in it. I have used it on a platform bed that has slats 3.5 inches apart. My new mattress is recommended to have a maximum of 3 inch separation so I opted to get a bunkie board to add support to it. It was easy to put into place and fit my platform bed perfectly.
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Reviewed in the United States on December 17, 2025 by 4Elmo
Size: Full-Size (54X75")
Arrived on time and the packaging was good- no tears in the packaging. It is heavy board so it is sturdy. No installation needed. I tried it out and it was perfect so far. I would recommend it.
Reviewed in the United States on February 24, 2026 by VN