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Maenizi

Maenizi Cal King Box Spring 4 Inch Low Profile, Heavy Duty Metal Box Spring Bed Base with Fabric Cover, Mattress Foundation, Easy Assembly, Noise Free, Black

  • Based on 1,563 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon
Arrives Monday, Jul 13
Order within 13 hours and 26 minutes
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Color: 4 Inches


Size: California King


Features

  • Stable and Sturdiness: Box spring california king size with solid steel sturdy struction is strong enough to hold up to 3,000 lb.
  • Easy Assembly: The clear instruction will assist you assemble box springs quickly and easily.
  • Noise Free: High profile Box spring keep away from noise, take care of your sweet night's sleep.
  • High quality fabric cover: Cal king box spring for bed covered by fabric compatible with diffrenent memory foam or hybrid mattress.
  • California king box spring only dimenssion:83.6"L x 71.6"W x 4"H.

Description

Experience a restful night's sleep with the Maenizi 9 Inch Box Spring for Queen Bed. Crafted with precision and sturdy metal construction, this foundation ensures a comfortable and supportive base for your mattress. Is this box spring with legs? No. In order to be placed more stable on the base bed, this box spring is designed without legs. Does this box spring require a bed frame? As a box spring, it needs a bed frame to support it. But you can also use it as a bed frame. Are there any tools required to assemble this box spring? All parts, screws, tools and instructions needed for assembly are included. 2/4/5/7/9 Inch Box spring 16 Inch Bed Frame 16 Inch Bed Frame 16/20 Inch Bed Frame 8 Inch Bed Frame Bed Frame with headboard Why customers love Maenizi bed frame? Maenizi is a manufacturing company with professional design and production capabilities. Wish you have a good night, have a good day! Visit the Store Visit the Store Visit the Store Visit the Store Visit the Store Visit the Store Visit the Store Visit the Store Visit the Store Visit the Store

Size: California King


Material: Metal


Product Dimensions: 83.46"L x 71.65"W x 3.94"H


Style: Modern


Special Feature: Squeak Resistant


Other Special Features of the Product: Squeak Resistant


Included Components: box spring, cover


Brand Name: Maenizi


Manufacturer: Maenizi


Target Audience: Adults


Manufacturer Part Number: BS4


Model Number: BS4-6CK


Is Extendable: No


Unit Count: 1.0 Count


Material Type: Metal


Required Assembly: Yes


Assembly Instructions Description: Included


Style Name: Modern


Color: 4 Inches


Finish Types: Painted


Furniture Finish: Black


Form Factor: Rectangular, Low Profile


Shape: Square


Compatible With Mattress Size: California King


Maximum Weight Recommendation: 3000 Pounds


Size: California King


Item Dimensions L x W x H: 83.46"L x 71.65"W x 3.94"H


Item Weight: 16.38 Kilograms


Ground To Item Distance: 4 Inches


Item Dimensions: 83.46 x 71.65 x 3.94 inches


Item Depth: 4 inches


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Jul 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.

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Learn more about financing & leasing here.

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Top Amazon Reviews

    • Easy assembly
Color: 9 Inches Size: Queen
So far so good. I love putting things together even as a 72 year old great grandmother. I was able to put it together by myself. The instructions were straightforward and all the pieces were marked making it easy. It took me about 2 hours because I had to take a few breaks. It’s new so I haven’t had issues with noise and it fit my queen sized bed frame perfectly. High quality and great value. ... show more
Reviewed in the United States on April 27, 2026 by Lauren Foster
    • Fully Recommended
Color: 2 Inches Size: King
This item has proven better than expected. After some recent surgery my wife was unable to climb into our bed as configured. By installing this boxspring I was able to reduce the height of our bed by approximately 6”. My wife is now able to access the bed. The 2” metal boxspring is much better and sturdier than our previous typical (wood & springs) boxspring. Assembly was also very easy. I was able to assemble the new boxspring and put our King Bed back together all in < an hour. ... show more
Reviewed in the United States on June 1, 2026 by Craig Askins
    • Works
Color: 4 Inches Size: Queen
Works and easy to put together
Reviewed in the United States on July 1, 2026 by Trinity ferrell
    • Highly recommended
Color: 9 Inches Size: Twin
Great product. Sturdy and easy to install.
Reviewed in the United States on May 11, 2026 by Imelda
    • Works great!
Color: 9 Inches Size: Twin
This took me about an hour to assemble by my self. I cleaned all the parts and made sure all the pieces would fit and screw in properly before starting so assembly its self took more like 45 minutes to complete. I got the twin size and it fit my twin bed frame perfectly. None of the parts squeak or creak. It's solid and Generally well made. The cloth cover fit over it all just fine. there was one issue, though. Since the metal frame was sitting in metal, it could slide back and forth on the metal frame with a a bit of a nudge which is not idea. EASY FIX: I knew this would happen so had some rubbery self liner near by.. I cut some long pieces and places them under the frame in some key areas and bang! it does not slide at all even with a strong shove or pull. Problem solved. It's a little bit taller than a typical wooden box frame so my bed sits a few inches taller but its not that big of a deal. My mattress needs replacing for sure but with this new very solid box frame, it is way more comfortable and supportive that it was on my old wooden, creaky box frame. and IF the new box frame does get squeaky I can use WD40 to fix it right up. And it's waaaay easier if I had to move. Just take it apart and shabam! it's a go with some ties and a bag for the parts. This kind of metal frame is definitely an improvement over a wooden box frame any day. 4 and not 5 stares because it was a beast to carry from the post office. yes, I carried this bad boy quite a ways and it was super gnarly to do so since the center of gravity of box was wonky and it was pretty heavy. Definitional a two person box to carry for sure. ... show more
Reviewed in the United States on December 10, 2024 by my self
    • Easy to assemble
Color: 4 Inches Size: King
Easy to assemble. It took about 1 hour.
Reviewed in the United States on June 30, 2026 by Terry L.
    • Assembly is a bear relative to competition
Color: 9 Inches Size: Queen
I bought this because it was $20 cheaper than the Amazon Basics box spring for the 9" Queen-sized version. We already got the Amazon Basics version of the 7" King-sized version, and they looked identical, with identical reviews, so I figured I'd save $20. While they both work equally well once assembled (quiet, solid, good fit, same basic appearance, lightweight), the ease of assembly for the Amazon Basics was *much* better. This one was *much* harder to put together, the assembly is more complicated and making the pieces attach was more difficult. Then, when you're almost done, and putting on the crossbars on top, while on the Amazon Basics the bars actually stuck in place when placed, so the final product works like a single solid object, the bars on this one lie loose; if the box spring is tipped, they all fall out, and even light jostling as you move it into place will cause one or two to pop out. If you value your time, or believe you may need to move the box spring even once, go for the Amazon Basics version, not this one. ... show more
Reviewed in the United States on July 6, 2025 by Josh R
    • Works perfect
Color: 4 Inches Size: Twin
So happy with this! It took a while to build but once it was done I was very happy with how sturdy it was. No squeaks, no loose parts, it does its job and is relatively lightweight.
Reviewed in the United States on June 14, 2026 by Danielle

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