Ulin planks are known for their exceptional durability and strength, making them highly prized in construction and architecture. The wood features a dense, tight grain that can be straight, interlocked, or wavy, with a smooth texture and a rich, deep brown to reddish-brown color that darkens over time. Ulin's hardness and weight contribute to its resistance to rot, pests and weathering. It's commonly used in heavy construction like bridges and buildings, as well as for durable furniture, flooring and boat building, thanks to its resilience and longevity.