Our value-tier cladding — Nordic pine thermally modified by SWM Wood at 212 °C, then milled to tongue-and-groove, shiplap, or open-joint profiles at our facility in Greenville, SC. The most specified board in our range, and the starting point for most residential projects. All profiles share the same 3/4" × 5-1/2" (19 mm × 140 mm) dimension. The choice is purely aesthetic — a clean shadow line from TG-I/V, a triple-reveal rhythm from TG-Triple, or a classic shiplap from TG-Lap. Profile options TG-Triple — triple-reveal tongue and groove, three shadow lines per board TG-Lap — classic shiplap profile TG-I — square-edge tongue and groove, clean minimal shadow TG-V — V-groove reveal Specifications Species: Nordic Pine (Pinus sylvestris) Treatment: Thermo-D (212 °C, class 2 durability) Dimensions: 3/4" × 5-1/2" (19 mm × 140 mm) Coverage: 4 1/2"-5 1/4" face per board Finish: Unoiled Fixing: Hidden nail through tongue (TG profiles), face screw (Lap)
