Box Springs King Size 9 Inch Heavy Duty Metal Mattress Foundation

Update 4/21/2025: Just wanted to give a "final" update that things are still working well and I'm sleeping better than ever without any worries. I can jump on to the bed without ever feeling like something will break or cave in and can wholeheartedly recommend this if you are just looking for a solid foundation vs the traditional wood box spring. I have 0 issues with the mattress above this foundation slipping as well, which was a problem with my old box spring. This review will likely no longer get any updates unless I encounter any issues Update 12/3/2024: The frame has remained solid and I've slept better than before and have 0 concerns with durability so far. I also liked that it is shorter than my previous 9 inch box spring and is easier to get on and off the bed since it is lower to the ground. Also, previously my mattress had a huge dip where I laid on it due to the broken box spring caving in the mattress along with it, but I'm happy to report that it is now almost flat and you pretty much can't tell that it was ever caved in before, almost as soon as I laid the mattress down on the new foundation. One thing I noticed is that it is not exactly "no noise". I don't hear any noise when I'm laying on the bed or with minor movements, but I do hear noise if I jump on the bed or "rock the bed" so to speak. This isn't an issue with me, but do beware if you are looking for a no noise solution, this may not be it for you. However, if you are just looking for a super durable mattress foundation, I still wholeheartedly recommend it. ---------------------------------------------------------------- Everything is in the box and the instructions are simple and very easy (it's not complicated to put together to begin with). Lifting up my mattress to replace the box spring was the hardest part. There's not a lot of screws (though they are all hex screws), so the instructions are more than good enough and the cover slips on really easy too. Be prepared for some lifting and make sure to have plenty of time and space though. I barely have any space in my room and I had to assemble most of it over my bed before standing it up and dismantling the bed. The process will go a lot faster if you have your own tools, but the tool included does the job ok. Once built, it feels super sturdy. There's not a lot of springiness since there's no springs, so if you don't like a stiffer bed to lay on, you might prefer traditional box spring, but the full metal construction of this does feel more solid and feels like it'll last waaay longer. The lower height also is nice when getting out of bed. I will report back if durability becomes a problem, but right now it doesn't feel like that will be an issue

Strong and easy to install

packaged well, included all hardware and tools, 1-person can lift & assemble. very easy instructions and all fit together with ease. most important very, very sturdy. great product.

I honestly hate writing bad reviews, but this box spring has way too many misleading “positive” reviews. First, assembly was annoying even with the instructions. We get a lot of our stuff from online. So, we are used to putting things together. This wasn’t particularly “difficult”, just annoying. Second, stop saying it is non slip. MANY people have stated (even in the positive reviews) that this box spring slips. Not only does it slip, but it has ruined my king size bed frame on the bottom right corner. There should be some sort of non slip on the underside of this thing. Even if it is just plastic covers over the corners. When it slips to the left or right the box spring (because it is fully open on the underside with the exception of one metal piece down the middle) the box spring drops over the lip of my frame and has now ruined the material on my brand new bed frame. I bought a $100 bunkie board that I haven’t received yet, but I should have to spend more money on the support than I did on the daggon box spring. It makes no sense. Not when it is advertised as “No Slip”. I hate the engineering of this thing. I don’t believe that any good engineer came up with this. In fact I believe that they were open and honest about what would happen if they cut corners and they did it anyway. DO NOT BUY THIS! Go to a store or keep looking around online for something with support on both sides of the box spring.

Easy and quick assemble, comes with necessary tools. Looks nice too. Its a cheaper option, but great value for your money.

Buy it! We bought a mattress from wayfair that in hindsight should have been put on a platform type bed set. I was so disappointed when I sat on the bed and it just kinda sagged on the edges and I felt like I was sinking into the bed in the middle. I HATED IT. I did some research and came across this metal box spring. Its priced so well and the easiest thing to put together! I bought a king sized and it fits inside my new bed set perfectly! Guess what?! No saggy bed!!!! So if you are on the fence about this product, just buy it! U wont be sorry.

Very nice box spring. Was very easy to put together ❤️ The only problem im having is my mattress is sliding off of the box spring. 📦

Let me start by saying: the instructions? Crystal clear. No confusion. No arguments. No “what does this even mean?” moments. Whoever wrote them deserves a raise. Now assembling it? Absolute chaos. The tools they provide technically work… but if they had included screws that were drill-friendly, this would’ve been a 30-minute job instead of me feeling like I was auditioning for Cirque du Soleil. At one point I was holding two metal pieces together with my knee, balancing the frame with one hand, and trying to manually screw something in like I was playing an aggressive round of Twister. That being said — once it was finally together? AMAZING. This box spring made our bed noticeably firmer (which we love), and it is SO quiet compared to our old one. I can now get in and out of bed without it sounding like a haunted house scene. I can even sneak out without my husband noticing… which may or may not be a good thing. 😂 So yes, assembly will test your patience. But the final result? 100% worth it. Would absolutely buy again — but next time I’m recruiting backup and bringing a drill.