The left wall racking was intended for single storage racks for 750ml bottles. The solid wood attached to the racking is for the ladder railing. We used Knotty Alder for the racks. For a richer look, we applied a Rustic stain on the wood. Check us out on Facebook: https://www.facebook.com/WineCellarSpecialists Wine Cellar Specialists +1 (773) 234-0112 info@winecellarspec.com Wine Cellar Specialists +1 (773) 234-0112 info@winecellarspec.com