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
Condition: New
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Availability:
20 left in stock
Arrives
Monday, Mar 16
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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.
Size: California King
Material: Metal
Style: Modern
Special Feature: Squeak Resistant
Color: 4 Inches
Size: California King
Special Feature: Squeak Resistant
Color: 4 Inches
Finish Type: Painted
Included Components: box spring, cover
Compatible With Mattress Size: California King
Brand: Maenizi
Assembly Required: Yes
Ground To Item Distance: 4 Inches
Manufacturer: Maenizi
Form Factor: Rectangular, Low Profile
Assembly Instructions Description: Included
Target Audience: Adults
Product Dimensions: 83.46 x 71.65 x 3.94 inches
Item Weight: 36 pounds
Department: Unisex Adult
Item model number: BS4-6CK
Date First Available: December 6, 2023
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Monday, Mar 16
Yes, absolutely! You may return this product for a full refund within 90 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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Top Amazon Reviews
Color: 9 Inches
Size: Queen
This fit my bed frame perfectly. Easy to assemble (instructions included, but didn't need). A power drill set to the right torque cut assembly time in half. I built the main outer assembly first, then placed the main assembly onto my bed frame -this made positioning easier and lighter for a one-man job. Afterwards, I set in all the structural ribs to completion and slid the mattress on top. Easy-peasy!
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Reviewed in the United States on February 23, 2026 by Gary G. Gary G.
Color: 2 Inches
Size: Queen
Very nice. My husband had a stroke so we had to take out my 9 inch box spring and replace it with this one. Pretty easy to put together and very sturdy. So far so good. It is very heavy duty but fit imperfectly over my frame. You could get a bunkie board depending on how soft your mattress is. Happy with my purchase.
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Reviewed in the United States on August 11, 2025 by Misha
Color: Split 5 Inches
Size: Queen
Easy Assembly. My bed is so much quieter with this replacing decades old wood split box spring
Reviewed in the United States on February 22, 2026 by Adam
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.
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Reviewed in the United States on December 10, 2024 by my self
Color: 9 Inches
Size: Queen
The box spring was easy to put together, and it is stable and solid. I recommed it
Reviewed in the United States on January 13, 2026 by Fierce
Color: 9 Inches
Size: Twin
Love these for my kids; It’s strong and better than the wood box frame ,that my son broke with easily by jumping on his bed. This one doesn’t budge when the kids jump on .
Reviewed in the United States on January 27, 2026 by Amazon Customer
Color: 2 Inches
Size: Queen
I had several real problems with this product. it was not easy to put together. But more than that the deign is defective. The side to side struts are about 60 " long whereas two other bases I assembled split these into 2 30" strut with an anchor on the center 80" bar. Even worse, the struts did not lie horizontally flat from the two edge bars over the center bar. So I returned it for credit.
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Reviewed in the United States on February 14, 2026 by Debka
Color: 9 Inches
Size: Full
I was looking for a box spring that wouldn’t squeak or sag, and this one fits the bill. The metal frame feels solid and supports my full-size mattress well, with no creaking even when I move around at night. The assembly took about 30 minutes with clear instructions and all parts included. The included fabric cover gives a clean look and stretches tightly over the frame. My only minor complaint is that the cover uses Velcro tabs that could be a little stronger, but otherwise, this box spring exceeded my expectations for both sturdiness and ease of setup.
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Reviewed in the United States on September 7, 2025 by KitKat