Radiata N1 Grade H3.2 Timber 75 x 50mm SKU: 611631 MODEL: 611631AAAA Mitre 10 SAvailable at selected stores. Check your local store for details Variants Ideal for many projects around the home, commonly used for light framing. Features and benefits H3.2 treated Radiata. N1 grade timber. Rough sawn finish. Kiln dried. For above ground, external use.