ZINUS California King Metal Box Spring with Wood Slats - 4 Inch Mattress Foundation for Sturdy Steel Structure and Easy Assembly

Tony P.: I purchased a new foam style mattress from Costco and I needed a platform to put it on.
Traditional mattresses use a box spring but foam mattresses need a solid platform of some kind. I bought this particular platform because the height of it along with the height of the new mattress would make the bed the exact same height as my old bed. Putting it together was a bit tedious but pretty straightforward. I assembled it by myself but 2 people would make it easier. I like that it came with a cover so if exposed it doesn’t look unfinished. It is very sturdy and supports the mattress very well. I'm very happy with my new setup.

United States on Dec 05, 2023

Susan: We have an older dog who likes to jump up onto the bed, so we decided to swap out our 9" box springs with a low-profile 4" one instead. My husband thought I was crazy buying a box spring that we had to put together, but during the assembly process he kept saying, "I am thoroughly impressed!" We both were impressed! It was super easy to put together, and everything was numbered. If you built Tinkertoys as a child, you can do this!! And not only did it include an allen wrench, but there was also a small ratchet wrench to make things even easier. And there were also a couple of extra screws, just in case. The wooden boards that install across the frame, they are sewn together and have Velcro on one side, and the fame has a Velcro strip, and you just roll them out and they are perfectly spaced and securely in place. And the wood seems to be of good quality, and not cheapo wood.

I couldn't be happier, and I would highly recommend this box spring to anyone looking for a box spring!

United States on Nov 18, 2023

Eric in Chicago: This was a really easy installation. I would recommend two people for putting on the cover. Very sturdy and all the pieces were numbered so it was obvious where each piece attached to another. I like that they included a little Allen wrench ratchet. That was a small detail that I really appreciated. Good quality of all components. Nothing cheap about it.

United States on Nov 06, 2023

dmill: Needed a shorter pedestal for our mattress. New bedframe made the total height of existing boxspring and mattress way to high. Needed a step stool and a boost. This was the perfect height. Very easy to assemble, took less then 30 minutes to complete. Very solid construction and design. Does not move, shake, or make any noise. Box is a little heavy when it arrives, but everything was in perfect condition. Comes with tools Needed to assemble.

United States on Nov 04, 2023

Stephanie: Easy to assemble, great quality! Would highly recommend this product!

Canada on Oct 19, 2023

larissa: Worth the cost. Very sturdy and solid. Highly recommended. Compared to store prices for quality it is one of the best.

Canada on Sep 21, 2023

Mason: It is a nice pick for a boxspring/foundation. The feel is sturdy though it isn't perfect. Our purchase had some of the assembly holes not lining up which required minor drilling out of holes to ensure they fit. I would recommend having this available just in case yours doesn't line up. Assembly was quick after this issue was fixed. Two wood slates were a little warped so you may also have this happen. It has affected us and the mattress weight corrects this.

One final thing that I couldn't figure out until I bought it is that the outer cover for a QUEEN mattress does in fact cover the top and bottom. It appears that if you get a twin, it only will be a cover for the top. The larger sizes have a middle support bar and a dust cover for both the top and bottom.

United States on Sep 13, 2023

Amazon Customer: Although I wouldn't depict this item as a box "spring", since there are no springs, it was the perfect low profile frame for our new very deep mattress. It was easy to assemble and is very sturdy and I no longer need to take a run and jump to get onto the bed. This low profile frame allows our mattress to sit at a much more comfortable height.

Canada on Jul 30, 2023

Radjaa BerberRadjaa Berber: This is the second Zinus bed I get and I will definitely be a returning customer if I ever need to change my bedframe again. It arrived in perfect shape, not a scratch. SUPER easy to assemble, and no flaw whatsoever in the build of the frame. Just as advertised by the manufacturer, this bed makes ZERO squeaking noise. I was happy with my previous 14" Zinus bedframe, but I needed to change it because I got a new mattress that happened to be 15" high, which required a lower bedframe for me to be able to get into my bed without feeling like I'm "climbing " into it!! The bonus with this frame is that it can be used as a spring box (with the fabric cover) or as a bedframe, in which case it has a modern and neat look. The only downside to using it as a bedframe is that it doesn't have anti-slip pads on the bottom so if you worry about scratching your floor, you should think about adding a carpet underneath or come up with another idea. Oh and did I meantion that this bed has a sturdy feel to it and the wooden flat slats are perfect for heavy mattresses like mine. The distance between the slats is small (2.6 inches) and the slats being flat, they don't leave marks at the bottom of my...

Canada on Jul 09, 2023

Lifefanatic: Full disclosure - this isn’t on a bed frame. I’m using this on the floor directly as a bed base right now for my infant, rather than putting the bed directly on the floor Montessori style. It’s low enough for now and we have the option of adding it to his convertible crib later to make a proper bed when he’s older.

It’s easy to assemble and looks good to me, but I notice if I’m right in the middle and rocking side to side that it creaks. We did put floor pads on the bottom to protect the hardwood so that may be it, but putting this as a warning for anyone else using it to replace a Montessori style floor bed. It would probably work better on carpet of with a non slip bottom instead of the floor protector pads that are thick.

Canada on Sep 27, 2019