All Waterwalls are custom made to order. This allows your choice of color matching the slate stone and wood to your home or office. We construct a Plexyglass interior box to insure corrosion or leaks are never an issue. Our frames are made of solid hard woods with a low gloss natural finish. The slate is cut at 2" bands to add a ripple effect to the water flow and bring a unique colorful composition. A copper lining to the interior walls of the box reflects on the slate. This can also be done with stainless steel.