The Roost Rooftop Support Block from Empire Industries measures 9.8 inches and includes a 13/16-inch pre-galvanized strut. This support block is engineered for rooftop applications, providing a stable base for various installations. Its robust construction ensures durability and resistance to environmental factors, making it ideal for long-term use. The pre-galvanized strut enhances corrosion resistance, ensuring reliable performance in demanding conditions. This product is perfect for professionals seeking dependable rooftop support solutions.