LOSP Weatherboards are H3 treated and primed, making them suitable for external use. Manufactured from sustainable plantation timber it is precision machined with a profile, allowing the boards to fit together snugly when installed. This profile creates a horizontal overlap between the boards making it suitable for external cladding. Finger joining technology allows the creation of long, straight and defect-free boards for every application. Shiplap Profile Primed and ready for painting 140 x 19mm