Southwire MSBFAN Fan Support 50/ lb; Maximum with Depth Adjustable; Gray

Needed a solid electrical box for a wiring project in my place and this one is noticeably better quality than the flimsy ones at the hardware store. It feels really rigid and the screws lined up perfectly without me having to fight with them or anything. Definitely going back to Southwire for any future electrical work because the build quality is just on another level.

Very durable boxes, hard type plastic that isn't brittle. Rigid, durable boxes with plenty of interior room. Wire knockouts knock out easily and don't leave sharp edges to cut into romex and wire insulation like some of the other brand boxes are notorious for. Love the mounting means for the box. I could not locate a 5 gang cut-in box for old work anywhere online. Purchased this box with the sole purpose of modifying. Worked perfect with a little modification. Cut the mounting tabs off and was able to utilize this one to serve as an old-work box. The forward angular screw landings served me well. Furthermore, the tapped holes for the device screws are durable as well. These sections don't strip out like some of the other boxes on the market. Just a very nice, quality box.

Kind of surprised more companies don’t make a product like this. Perfect and easy solution compared to the other types of fan rated boxes. Now, I suppose I got a little lucky that the light I was replacing happened to be right next to a joist. But, even if I’d had to relocate it, this box would still prove to be an efficient time saver. Took one star away based on the knockouts. First, if you’re not familiar with this type of box, it’s not exactly self evident which portion of the tab needs to be broken off. A small edit to their instructions could fix that potential for confusion. Second, the knockouts could be designed a little better. It wasn’t incredibly difficult to remove the tabs. But it could be easier. Someone else suggested using a flathead screw driver and hammer. Which works pretty well. Beyond the above, this box is excellent. Installed in minutes, and is rock solid. My impact driver made quick work of the fasteners. If you don’t have an impact or drill/driver, it’ll take some elbow grease to get them sunk. I did have a brief hiccup, but it was my own fault. In short, when I secured it to the joist, the box ended up slightly recessed. For my application, that posed a problem. As the brackets typically mounted to a fan body are very flush to the ceiling. My solution was simple. Took another two nylon lock nuts (one on each bolt) and essentially used them as spacers. Worked perfectly. So maybe sharing that issue and solution will help someone in the future. Would definitely buy this product again!

Awesome sturdy box. Tons of room for running all your switch wire into. Even have two smart switches in the box that take up more room than a regular toggle switch and I had no issues getting the wire into the box. Def make sure you brace both sides at least since the box is so long.

Eletrical box, good for tv mount and data cables in other side.