Plywood T&G panels lock adjacent sheets together at the edges, so the deck or the ceiling builds one continuous surface with no gaps between the panels. The tongue-and-groove edge strips the load across the panel into the next panel and keeps the surface flat where the butt seam would bounce and sag. Choosing the right … Continue reading Plywood T&G: Tongue-and-Groove Panels for Floors, Ceilings, and Walls