Excellent quality in terms of weight and stability. I have not yet attached to the wall, which I will do, but it is stable on a stand-alone basis. The rail itself is heavy but not too heavy that I cannot lift it. The width of my space is 12 feet and the railing will fit across with some extra length in there. I can fashion to shape to be curved or a slight zig-zag so that I can fasten it to the wall. The gate opens and closes well but this could be a potential weak area, depending on the amount of use. I have purchased it for a puppy space and think it will do the job nicely.