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Zinus

Zinus Compack Vertical Wood Slats, Box Spring Replacement, King

Based on 12,635 reviews
Condition: New
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$151.34

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At a glance

Condition
New
Size
King
Pattern
Slats
Dimensions
78.9 x 73.78 x 0.5 in
Weight
26.2 lb
Color
Natural
Material
Wood
In the box
FabricWood Slats

Features 7

  • Sturdy Plywood Slats and Polypropylene Fabric Covering
  • THE CONVENIENCE OF A PLATFORM BED, INSTANTLY - As simple as rolling open a sleeping bag, these fabric-covered wooden support slats enhance the functionality and durability of your existing bed frame or bunk bed in a snap
  • REPLACE YOUR BOX SPRING - Trusty plywood slats are designed to optimally support your spring, latex or memory foam mattress without the added bulk of a box spring; plus, theyre a cinch to roll up and transport when moving or rearranging furniture
  • VERTICAL SLATS Designed to pair seamlessly with bed frames that feature horizontal support bars, these vertical slats provide reliable, well-distributed mattress support

Description

Upgrade your mattress support without the hassle of buying a box spring or replacing your bed frame. Made for frames with horizontal center support, this vertical-slat bunkie board is sturdy, durable, and built to last. Simply place the Compack® Fabric Covered Wood Slats on the inner edges of your bed frame for reliable support with any mattress. Wrapped in a clean fabric cover, it is as aesthetically pleasing as it is functional. It arrives compact, requires no assembly, and is easy to store; simply unroll and your mattress is ready for stable, comfortable sleep.

Specs 26

Size King
Color Natural
Material Wood
Style Traditional
Brand Zinus
Brand Name Zinus
Manufacturer Zinus
UPC 841550238617

Frequently asked questions

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View our full returns policy here.

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Top Amazon Reviews

So Easy To Use
Size: Full Pattern Name: Slats
Purchased a vintage bed frame and it didn't come with slats. I was scared to drill into it and damage it, so this was a great solution. It supports a foam mattress with no issues, and seems very sturdy. No set-up besides unrolling it, so even easier. The frame I have didn't require any addition attachments, and it fits perfect to size. This would probably be great for weird dorm beds, or less supportive frames. Doesn't add much thickness to the mattress and isn't bulky at all. ... show more
Reviewed in the United States on August 8, 2026 by Jennifer
Works great, if you know what it is for.
Size: Queen Pattern Name: Slats
Was skeptical of Zinus, they have "2,000 lb." bed frames for memory foam mattresses that break in a year (white label: it's the same as many other frames for $125.) But these did the job. Vertical wood slats combined with my existing bed frame's metal horizontal beams means no sagging, every part of the bed feels even, and no dipping. Some notes: -- For spring mattresses, this will NOT replace your box spring. Seen a lot of pics of folks putting this in traditional metal bed frames expecting it to work. (Same as any other long planks of wood: if a kid jumps on the mattress, without cross members, it'll snap. What is expected here?) This is meant to add stability to beds with existing horizontal slats of some kind (wood, metal, etc.) that are just too far apart for a mattress to be well supported. -- Sliding around is real, but again, this shouldn't be the sole thing holding the mattress up. This is intended to be part of mattress support, not a sole support. After placing the mattress on, I let the planks shift inward, then pulled them back to the edge and checked underneath that none were overlapping or doubled up. All set. -- My current bed frame has horizontal slats, but the measurements were over 6" apart, which is against most memory foam mattress warranties. By putting these over it, it has a "lattice" appearance combined with the horizontal slats, and the wood makes contact with each horizontal slats distributing weight across all of the slats evenly (versus each horizontal slats receiving pressure and shifting/bending/buckling over time on their own.) -- Mold sucks. I'm sorry for those who found them with mold shipped. This is common with wood products and shipping containers + moisture + time, it is extremely possible these left the factory 100% but had spores on the wood or they transferred on from other contaminated product mid shipment. Its also possible Zinus failed a quality check. I'm not writing this for them. I bought these, no freebies or review samples here. I'm a big guy, but not tremendously so. 280 lbs, 6 ft. tall. And I've learned that most weight ratings on mass-produced bed platforms are nonsense. Anything spot-welded breaks over time just as easily as wood snaps given time and repeated pressure. I don't even slump down when I'm tired, I'm careful to sit each time before lying, and it still happens. The goal is getting more time out of a cheap bed frame, versus paying $600-1,200 for something with all sorts of feature I don't need (shelves, upholstered pillow-stitch headboard, trundle bed, drawers, etc.) that is likely assembled the exact same way with the same quality of parts. In closing, you can't pay for quality without overseeing someone custom-building it or doing it yourself. So, stack the deck where you can. This isn't going to replace a box spring. But it's a lot less unwieldy and likely cheaper (wood prices haven't really come back down) than getting a plywood sheet from the hardware store cut to fit your bedframe, stapling a fabric cover over it, and laying over the slats to 'back them up'. That's what this is for. ... show more
Reviewed in the United States on November 28, 2024 by Micah D. Collard
Game-Changer for Any Mattress! Sturdy, Sleek, and Surprisingly Simple!
Size: Twin Pattern Name: Slats
Review Image by Kay
Review Image by Kay
Review Image by Kay
I wasn’t sure what to expect when I ordered the ZINUS Compact Fabric Covered Wood Slats, but I’m so glad I gave it a try. This little gem has completely transformed my son’s twin bed setup! He no longer wakes up complaining about his mattress sagging or feeling uncomfortable, and trust me, for a growing boy, sleep is everything. What I Loved: Easy Setup: It came pre-assembled and rolled up. I literally just unrolled it onto the bed frame. No tools. No fuss. Done in under 2 minutes. Strong Support: These slats are solid. My son jumps on the bed (as kids do), and these slats don’t budge or creak. It feels like a high-end box spring without the bulk. Low Profile: Perfect for bunk beds or low platform frames. I paired it with a medium-firm mattress and it gave the perfect amount of lift without making the bed too high. Fabric Covered: The clean design adds a nice touch, and the fabric helps prevent the mattress from sliding around. Perfect for: Replacing bulky box springs Making bunk beds safer and more comfortable Anyone needing a minimalist but strong foundation. Final Thoughts: This is one of those things you don’t realize you need until you try it. It’s a small upgrade with a big impact. If you're on the fence don’t be. It’s well worth it! ... show more
Reviewed in the United States on July 15, 2025 by Kay
Worth it
Size: Queen Pattern Name: Slats
I have a nectar mattress which felt too squishy with my current frame (wood slats.) these are already put together and weresuper easy to place by myself. I noticed my mattress was more supported immediately and I have had much less back pain since I'm a stomach sleeper! Its been a few months now and it doesn't feel as firm as it did before but its still better than without it. I don't notice them slipping around at all. ... show more
Reviewed in the United States on February 7, 2025 by Amazon Customer
My back feels better
Size: Queen Pattern Name: Slats
Review Image by AnaC
I had really bad back pain and thought my new extra thick mattress was to blame. Then I read it could just be the bed frame or slats. I was using ikea luroy slats and i think.they were not string enough. I bought these and placed them on top of the slats. The ikea slats are horizontal and these are vertical. So its a criss cross pattern now and no sinking is possible. Lol. I might remove the ikea ones. But honestly my back pain subsided after a few days. I could not believe it. Im sleeping 100 times better because of these. I like that they are vertical. These slats are really really good quality. I loved the packaging and just how easy they were to lay down. It took me about a minute total to fix my bed. Now that I'm waking up with NO BACK PAIN and not stiff, I feel better. I would recommend this company and these slats. They are not cheaply made. They look and feel solid. I'm happy and I was miserable in pain. ... show more
Reviewed in the United States on May 7, 2024 by AnaC
Perfect support, no assembly needed!
Size: Full Pattern Name: Slats
Perfect support for my hybrid mattress. I have an older frame that requires a boxspring. I opted for this because it was less expensive and not too high. It gives the bed Perfect support. I tried others, but this is the best. Highly recommend!
Reviewed in the United States on March 8, 2026 by Ginger
Solid slats for an awesome price!
Size: Queen Pattern Name: Slats
I had been dealing with severe back shoulder pain for the last 3 years and despite being active and stretching, I realized it was my mattress. I spend over $2K on a mattress that helped me tremendously but after 6 months I noticed the pain started to come back and I was devastated. After scouring the internet for answers, I realized that I the frame has a lot to do with the efficiency of the mattress. I was SO HAPPY to find these wooden slats! They were the affordable answer to my prayers. It was super easy to assemble myself, although I will say that the slats do slip so I did have to adjust them multiple times when putting my heavy mattress back on. I can definitely feel a difference in my mattress already and am so happy with this purchase! ... show more
Reviewed in the United States on June 5, 2024 by Juliana Campos
Works well to save a sagging mattress.
Size: King Pattern Name: Slats
These wood slats were sliding around causing the mattress and topper to slide and misalign. I found I needed to drill holes through these slates into the metal bed frame it was on top of, screwing the slates in place to keep the slates from moving. The slats are covered in a cotton wrap making them slippery against the metal bed frame. Once everything was locked in place it worked very well. A memory foam mattress was on top and was squeezing through the cross members of a Zinus metal bed frame causing many painful pressure points where the mattress was very very soft or hard where the metal cross members are underneath. When weight was on top the mattress was being extruded through the metal cross members not offering any support where there was no cross member. I used these slats the "fill in the gaps". I am rating these slats 3 stars because the bed frame and these slats are the same brand. The company Zinus should have either predrilled this frame or slats or offered a roll of carpet tape to keep everything securely attached to prevent sliding around. The slats are well made, however. I just see this as a big oversight that caused me more redesign time to take everything apart to fix their design flaw. This is Zinus queen metal frame, Zinus queen wood slates, with some off-brand memory foam mattress, and a queen ViscoSoft 3 Inch Gel Memory Foam Mattress Topper. ... show more
Reviewed in the United States on March 23, 2019 by Norm
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