Radiata N1 Grade H3.2 Timber 150 x 50mm SKU: 611640 MODEL: 611640AAAA Mitre 10 SAvailable at selected stores. Check your local store for details Variants Ideal for many projects around the home, commonly used for decks and light framing. Features and benefits H3.2 treated Radiata. N1 grade timber. Rough sawn finish. Kiln dried. For above ground, external use.