Our MDF Window Sill Board is primed white and available in several widths: 219mm (9 Inch), 244mm (10 Inch), 269mm (11 Inch), and 295mm (12 Inch). Constructed from high-grade MDF, it's built for durability and provides a contemporary finish ideal for doorways or windows. This board is FSC Certified, moisture-resistant, and twice primed, making it sealed and ready for a final paint application. It features a bullnose pattern and has a thickness of 25mm. An unprimed 350mm MDF Window Board is also available.