TS-03 hollow composite decking has spaced grooves on one side of the decking to create a sturdy, non-slip walking surface. the other side of the composite deck board has a 3D wood grain surface to provide a modern and stylish look to the project. And the hollow structure of TS-03 can easily drain water from the interior of the deck, perfect for areas with a lot of rain. Of course, you can also wire through the composite decking’s hollow structure. The outdoor energization is completed without affecting the aesthetics of the outdoor deck.