European Hardwoods

European Oak's heartwood is light tan to biscuit coloured, usually straight-grained, but irregular or cross-grained material can occur depending on growth conditions. Characteristic silver grain figure on quartered surfaces due to broad rays. British and Baltic oaks are tough and hard, weighing 720 kg/m³ (45 lb/ft³), but the Volhynian oak of south east Poland, and even milder oak from Yugoslavia known as Slavonian oak weights 670 kg/m³ (42 lb/ft³); specific gravity from .67 to .72 according to type.