Cook Lumber sells lumber to several customers that use lumber for paneling. The most common wood paneling Cook Lumber sells is 6″ and 8″ “rustic” Poplar. Customers use this lumber to panel the inside of their houses, garages, bars and restaurants, barns, offices, etc. Some customers leave their wood paneling in the rough to get the full “rustic” look, while other customers surface and stain their paneling to get a much cleaner appearance.