I am kicking a few thoughts around... What would be the best way to use brackets on a concrete wall? I have an impact drill, and I was thinking of placing plastic screw anchors into the concrete. As for the brackets, some of the areas of my layout are going to be wider than the standard 24-30" range Armstrong suggests. Since I am going to be building on a foam base rather than ply, I was thinking that I would use a 24" bracket and attach some 1x2 on the top, making a cantilevered bracket. Since the height of the concrete portions of the walls are not all the same, I will have to "customize" a few of the brackets. I have yet to do the math, but I think this method will prove less expensive than an all wood setup. Any thoughts? Did I bump my headwall1 in thinking this would work?