Western Red Cedar Shiplap machined on-site is sourced from the USA & Canada PEFC. Cedar is classed as a Softwood but has very good durability due to a natural oil in it making it perfect for exterior applications. The timber is uniform, cut flat and straight. Stainless steel nails should be used on Western Red Cedar to stop staining. Use of regular nails will over time result in black streaks running down the timber caused by the iron in the nail reacting with chemicals in the cedar.