This was exactly what I was looking for. I bought two of these to stack. They are a replacement for some wine cubes that were definitely in decay. These are quite sturdy, feel really solid even before the bottles are loaded. Given the height of the stack, I did secure them from behind, in my case by attaching them to some other racks. (They are essentially the end-cap of a larger installation) I did this at several points from about the middle of the stack to the top of the stack. And symmetrically on each side. In a more straightforward situation, secure them to a wall, being sure that they are securely attached to the studs. They are not at all shaky, just that they are tall, narrow front to back, and heavy. Also, the hardware for this is not included, I just improvised with some hardware I had lying around, but do figure it out before building, and definitely before loading. On a flat level floor, you probably do not necessarily need to secure a single rack to the wall, but be sure that running into it and toppling something is not possible, and load the bottom before the top. Assembly is fast, easy, and self-explanatory. The joints are anywhere from pretty tight to slightly loose. A rubber-headed mallet was useful for some of them I also used a small amount of wood glue in some of the looser joints. Not strictly necessary, but very little reason not to. As to what fits, there is some misleading info in the reviews. Standard-sized Bordeaux and Bordeaux fit equally well, each uses one slot, and you can mix and match as needed. Oversized bottles such as Champagne, or heavy Burgundy shaped bottles do not fit. except possibly on the top level. Heavy Bordeaux shaped bottles may or may not fit. In rows populated by standard Bordeaux bottles, it is possible to add long/thin 375's in the gaps between the 750's. Standard 375's do not generally fit this way. You can also stack a few layers on the top shelves, but I recommend this only if the rack is secured to the wall and if you can reach it without standing on anything. So in summary, these are sturdy, efficient in terms of bottles per length of wall, stack very well, and are definitely designed for installation by amateurs with common sense. Also very fairly priced compared to everything else I looked at. So far, highly recommended.