Zinus 9 Inch WonderBox(TM) Smart Box Spring, Grey, Twin

esta muy chica de ancho mi colchon es individual y esta mas grande que esto pero de ahi en fuera facil de armar y no es muy caro

Went together so easy. Strong and sturdy. I dont have mine on top of a metal bedframe, using this to get an open frame look to match the loft bed I have over queen bed.. But for people saying its weak or bending on frame, your metal bedframe must have a center bar to support the center of this just like any quality frame should have supporting a wooden box spring. I didnt use the cover so cant make opinion on that. The mattress i have on it is an older 12 inch high Zinus hybrid that is heavy as heck. No creaking, rattles, and stays put. The mattress does sink down a bit in between bars when laying on it as a bigger person, but since in spare room not to worried about it. It would be nice if had few more cross bars but not a dealbreaker. For everyday use Id put a board under the area where main body weight would be. If bed frame in my room broke (which is a Zinus folding smartbase) Id buy one like this.

I’m honestly impressed with this foundation. I bought the king size and was expecting it to be heavy and complicated, but it was actually very easy to put together. The frame feels solid once it’s assembled, and it doesn’t wobble or shift when you get in and out of bed. What I like the most is that it makes absolutely no noise. No squeaks, no movement sounds at all. The support is firm in a good way, and the surface feels steady under the mattress. It also doesn’t weigh as much as I expected, so moving it around wasn’t a problem. Overall, it looks clean, feels durable, and holds the mattress perfectly without sliding. The height is perfect to match the regular bed headboard. (4 " works )Great buy.

Great for the price point. Definitely does the job! Could have a thicker fabric around the metal casing, but overall no complaints!

Divided on this. I was able to put it together on my own pretty easily. I like the cover and it was easy to put on and it fit well. I like that it was light enogh for me to pick it up on my own once put together. Where I ran into a problem is when I went to turn it on its end facing up so I could slide on a boxspring zip cover I bought. The support bars started coming off as they popped out and started bending shut. I created my own solution and used tape to reinforce some areas. It worked. I think this is probably a great boxspring for a house but I live in an apartment and my neighbor downstairs doesn't appreciate the noise the metal makes againt my wood bed frame. I can fix that too. I'll just go get some shims and rubber backing to put between the frame and boxspring.