5/4x6 Cumaru Tongue & Groove Decking

This 5/4x6 Cumaru decking board (Tongue & Groove profile) pairs the proven outdoor performance of Cumaru (Brazilian Teak) with a 3,330 Janka hardness rating — one of the hardest commercially available woods on earth. The interlocking tongue and groove profile creates tight, seamless joints for exterior decks, patios, and pool surrounds, with no visible fasteners on the finished surface. In stock and ships nationwide — order 5/4x6 Cumaru decking boards online or call 1-844-674-4455 for expert guidance.