Wormy Chestnut is a user-friendly description for a small collection of Eucalypts, native to Australia. The natural features found in Wormy Chestnut flooring reveal a history of seasonal diversity and insect activity in the forest. This flooring has a smooth surface with a clear finish on a 3mm wear layer. It’s suitable for above and below grade installations and additionally over water-based radiant heat systems. It can be nailed, glued or floated. Natural variations and occasional knots are allowed in this grade. The finish wear-through warranty is 25 years for residential applications. The structural warranty is lifetime.