Harvesting regional log wood, using it to manufacture the timber construction system you specially developed, and selling it through your own carpentry business or via partner companies, planning offices and architectural firms. Andreas Reßle and his companies H.R.W. Vollholzwandsystem and ARS Starkholzplatten have made this prime example of vertical integration a reality. On November 20, Reßle hosted the first Timber Construction Day in Roßhaupten, Bavaria.