With its beautiful dense grain, keyaki is the most expensive of Japanese woods. It is a sturdy, long-lasting hardwood requiring little maintenance. Pieces crafted from burled keyaki – wood taken from the knotty area near the trunk of the tree that is noted for its handsome, clustered grain that appears wavy or curly – are especially coveted. This wood is now so rare that typically only planed thin sheets of veneer are used instead of solid pieces.