Trusscore Large Outside Corner Trim is a simple and clean method of completing outside corner applications in Wall&CeilingBoard; installations. , Trusscore Wall&CeilingBoard; is designed with a high-strength polymer formulation and engineered to be the perfect alternative to traditional FRP and drywall systems. The tongue & groove interlocking system makes installation quick and easy, and the unique truss design provides industry leading strength and durability. When you need a smooth finish that is easy to clean, low-maintenance, and abuse-resistant, Trusscore Wall&CeilingBoard; has your project covered.