The Old Factory series is partly heartwood, the boards have a multitude of “flaws” such as cracks, discoloration, oil stains and offer a resolutely authentic appearance. The quality of wood used for this range is a mixture of rustic A, rustic B, rustic C and rustic D. This type of character only exists on our straight plank floors and not on our parquet floors (except Versailles parquet in ref 950).