BlackStallion Formply Stress Grade F17 is a premium structural plywood engineered for demanding construction and formwork applications. This 2400x1200x17mm sheet delivers exceptional strength and durability, making it ideal for concrete formwork, flooring substrates, and load-bearing structural uses. The F17 stress grade ensures reliable performance under heavy loads and repeated use. The robust 17mm thickness provides excellent rigidity and impact resistance, reducing deflection and minimizing material waste on site. BlackStallion's consistent quality and dimensional accuracy make installation faster and more efficient. Perfect for builders, contractors, and serious DIY projects requiring dependable structural support. Each sheet is manufactured to Australian standards, delivering the strength and reliability you need for professional-grade results.